On the whole, therefore, we consider _Æpyceros melampus_ to be a

wide-ranging species, extending from Bechuanaland in the south

throughout the eastern side of Africa to British East Africa on the

north, and perhaps reaching even to the White Nile. But over all these

districts there is a certain amount of variety amongst the specimens,

and we are not, therefore, at present inclined to recognize, even

as subspecies, what have been designated as _suara_, _johnstoni_,

and _holubi_, although future researches may lead us to a different

conclusion.

So far as we know, the Pallah has been brought to Europe alive on two

occasions only, and in both instances the animals were imported by Mr.

C. Reiche, of Alfeld, from the northern part of the Transvaal. The

first specimen (in 1890) went to the Zoological Garden of Berlin and

the second (in 1890) to the Zoological Garden of Vienna. Both were

young males, and generally of a reddish colour, with the horns slightly

developed. They did not live long after their arrival in the Gardens.

The Pallah is represented in our National Collection by a mounted

male from Kilimanjaro shot by Mr. F. J. Jackson and by a mounted

head from Lake Elmetaita presented by Captain Lugard, the horns of

which are amongst the longest of known specimens. There is likewise

a mounted head from the Zomba highlands presented by Sir Harry

Johnston and representing the short-horned race which inhabits the

mountain-districts south of Lake Nyasa. Besides these there are skulls,

skins, and horns from various districts in South and East Africa.

Our illustration of the Pallah (Plate XLVIII.) has been put upon the

stone by Mr. Smit from a water-colour drawing by Wolf prepared for the

late Sir Victor Brooke and now belonging to Sir Douglas Brooke. The

drawing is noted on the back as having been taken from a head belonging

to Mr. Selous and a loose skin. It represents an adult male in two

positions. The female, as already stated, is absolutely hornless.

The woodcut (fig. 47, p. 23), which gives a front view of a good

head of the Pallah, was drawn by Mr. Smit under Sir Victor Brooke’s

directions.

_August_, 1897.

78. THE ANGOLAN PALLAH.

ÆPYCEROS PETERSI, BOCAGE.

_Æpyceros petersi_, =Boc.= P. Z. S. 1878, p. 741; =Huet=, Bull.

Soc. Acclim. (4) iv. p. 479 (1887); =Scl.= P. Z. S. 1890, p. 460

(woodcut of head); =Flow. & Lyd.= Mamm. p. 341 (1891); =Lyd.=

Horns and Hoofs, p. 231 (1893).

_Æpyceros melampus_, =Jent.= Notes Leyd. Mus. ix. p. 173 (1887)

(?) (Mossamedes).

Similar, so far as is yet known, to _Æ. melampus_ in all respects

except that on the face, as is shown in our woodcut (p. 26), there

is a prominent brown patch running along the top of the muzzle. This

character is said to be perfectly constant, and we therefore admit for

the present the validity of the Angolan form as a distinct species.

The Angolan Pallah was first recognized as a distinct species by Prof.

J. V. Barboza du Bocage, a distinguished naturalist of Portugal, in

a list of Angolan Antelopes published in the Zoological Society’s

‘Proceedings’ for 1878. M. du Bocage based his description upon two

specimens forwarded to the Lisbon Museum by the well-known explorer

d’Anchieta. Of these the male was stated to have come from Capangombe,

the female from Humbe--two places both in the province of Mossamedes

north of the Cunene River. M. Bocage distinguished the new species from

_Æ. melampus_ principally by its black face, and dedicated it to

the late Professor Peters, of Berlin, whose opinion agreed with his

that it was distinct. It is probable that the skull from the Cunene

River, obtained by Heer Van der Kellen in October 1885, and referred

by Dr. Jentink, in his paper on Mammals from Mossamedes, to _Æ.

melampus_, may belong properly to _Æ. petersi_.

[Illustration: Fig. 48.

Front view of head of Angolan Pallah.

(P. Z. S. 1890, p. 460.)]

In 1889 Capt. F. Cookson, during a sporting excursion into Hasholand

or Kaokoland, in the neighbourhood of the Cunene River met with some

twenty or more specimens of this Antelope, and brought back a single

head to England. This head, mounted by Mr. Rowland Ward, was exhibited

by Sclater at a meeting of the Zoological Society on June 17th, 1890,

as an example of _Æpyceros petersi_. The notice of Sclater’s

exhibition published in the Zoological Society’s ‘Proceedings’ was

accompanied by an illustration, which, by the kindness of the Council

of the Zoological Society, we are enabled to reproduce (fig. 48).

The dimensions of these horns are given by Mr. Rowland Ward, in his

‘Records of Big Game’ (1896), as 18¾ inches in a straight line and 22¾

on front curve, and the distance between the tips as 12¼ inches.

So far as we know, this is all the evidence to be offered as to the

existence of this species, concerning which further particulars would

be very desirable. There is no example of it in the British Museum.

_August_, 1897.

GENUS III. SAIGA.

Type.

_Saiga_, =Gray=, List Mamm. B. M. p. xxvi (1843) S. TATARICA.

_Colus_, =Wagner=, Schreber’s Säugeth. Suppl.

iv. p. 419 (1844) S. TATARICA.

Size medium. Nose large, elongate, bent downwards, and inflated; the

nostrils opening downwards. Tail short. Mammæ 4. Accessory hoofs

present.

Skull with short nasals and premaxillaries, and an exceedingly

large and high nasal opening; small supraorbital pits; no lachrymal

vacuities; anteorbital fossæ shallow. Lower premolars two, at least in

the recent species.

Horns of medium length, cylindrical, rather irregularly lyrate,

strongly ringed, pale whitish or amber-coloured. Female hornless.

_Range of the Genus._ Steppes of S.E. Europe and Western

Asia.

One species only.

[Illustration:

THE BOOK OF ANTELOPES, PL. XLIX.

_Wolf del. J. Smit lith. Hanhart imp._

The Saiga

SAIGA TATARICA.

_Published by R. H. Porter._]

79. THE SAIGA.

SAIGA TATARICA (LINN.).

[PLATE XLIX.]

_Ibex imberbis_, =Gmel.= N. Comm. Ac. Petrop. v. p. 345 (1760) &

vii. p. 39, pl. xix. (♂ ♀) (1761). (Not binomial.)

_Le Saiga_, =Buff.= Hist. Nat. xii. p. 198, pl. xxii. fig. 2

(horn) (1764).

_Capra tatarica_, =Linn.= Syst. Nat. (12) i. p. 97 (1766) (ex

Gmel.); =Müll.= Natursyst. i. p. 417 (1773).

_Saiga tatarica_, =Gray=, List Mamm. B. M. p. 160 (1843); =id.=

List Ost. B. M. p. 55 (1847); =id.= Knowsl. Men. p. 3 (1850);

=id.= P. Z. S. 1850, p. 112; =id.= Cat. Ung. B. M. p. 51, pl.

vi. figs. 1 & 2 (skull) (1852); =Temm.= Esq. Zool. Guin. p. 189

(1853); =Gerr.= Cat. Bones Mamm. B. M. p. 231 (1862); =Glitsch=,

Bull. Soc. Moscow, 1865, p. 207; =Sclat.= P. Z. S. 1867, p. 240,

pl. xvii.; =Murie=, P. Z. S. 1870, p. 451 (anatomy & position);

=Gray=, Cat. Rum. B. M. p. 33 (1872); =id.= Hand-l. Rum. B. M.

p. 102 (1873); =Scl.= List An. Z. S. (8) p. 143 (1883), (9) p.

157 (1896); =Flow. & Gars.= Cat. Coll. Surg. ii. p. 265 (1884);

=Sterndale=, Mamm. Ind. p. 468 (1884); =Flow. & Lyd.= Mamm. p.

341 (1891); =Ward=, Horn Meas. (1) p. 101 (1892), (2) p. 145

(1896); =Lyd.= Horns and Hoofs, p. 163 (1893).

_Antilope tatarica_, =Forst.= Descr. Anim. p. 390 (1844);

=Sund.= Pecora, K. Vet.-Ak. Handl. 1845, p. 270 (1847); =id.=

Hornschuch’s Transl., Arch. Skand. Beitr. ii. p. 266; Reprint,

p. 86 (1848).

_Colus tataricus_, =Brehm=, Thierl. iii. p. 283 (1880).

_Antilope saiga_, =Pall.= Misc. Zool. p. 6 (1766); =id.= Spic.

Zool. xii. pp. 14 & 21 (1777); =Zimm.= Geogr. Gesch. ii. p. 121

(1780); =Bodd.= Elench. Anim. p. 143 (1785); =Schr.= Säug. pl.

cclxxvi. (1787); =Gmel.= Linn. S. N. i. p. 185 (1788); =Kerr=,

Linn. An. K. p. 309 (1792); =Donnd.= Zool. Beytr. i. p. 626

(1792); =Link=, Beytr. Nat. ii. p. 99 (1795); =G. Cuv.= Tabl.

Élém. p. 163 (1798); =Bechst.= Syst. Uebers. vierf. Thierr. ii.

p. 645 (1800); =Shaw=, Gen. Zool. ii. pt. 2, p. 339 (1801);

=Turt.= Linn. Syst. Nat. i. p. 112 (1802); =G. Cuv.= Dict. Sci.

Nat. ii. p. 229 (1804); =Desm.= N. Dict. d’H. N. (1) xxiv.

Tabl. p. 33 (1804); =Tiedem.= Zool. i. p. 409 (1808); =Pall.=

Zoogr. Ross.-As. i. p. 252 (1811); =G. Fisch.= Zoogn. iii. p.

428 (1814); =Afz.= N. Act. Ups. vii. p. 220 (1815); =Desm.=

N. Dict. d’H. N. (2) ii. p. 181 (1816); =G. Cuv.= R. A. i. p.

261 (1817); =Goldf.= Schr. Säug. v. p. 1216 (1818); =Schinz=,

Cuv. Thierr. i. p. 389 (1821); =Desmoul.= Dict. Class. d’H. N.

i. p. 44–2. (1822); =Desm.= Mamm. ii. p. 452 (1822); =Less.=

Man. Mamm. p. 391 (1827); =J. B. Fisch.= Syn. Mamm. p. 458

(1829); =Less.= Compl. Buff. x. p. 289 (1836); =Laurill.= Dict.

Univ. d’H. N. i. p. 616 (1839); =Gerv.= Dict. Sci. Nat. i.

p. 260 (1840); =Less.= N. Tabl. R. A., Mamm. p. 176 (1842);

=Wagn.= Schr. Säug. Suppl. iv. p. 420 (1844), v. p. 402 (1855);

=Schinz=, Syn. Mamm. ii. p. 408 (1845); =id.= Mon. Antil. p. 12

(1848); =Gieb.= Säug. p. 313 (1853); =Nehring=, Z. Ges. Erdkunde

Berl. xxvi. pp. 327 & 338 (1891) (distribution); =id.= Zool.

Gart. 1891, p. 328.

_Capra sayga_, =Forst.= Phil. Trans. lvii. p. 344 (1767).

_Antilope (Gazella) saiga_, =Licht.= Mag. nat. Freund. vi. p.

171 (1814).

_Cerophorus (Antilope) saiga_, =Blainv.= Bull. Soc. Philom.

1816, p. 75.

_Colus saiga_, =Fitz.= SB. Wien, lix. pt. 1, p. 161 (1809).

_Saiga saiga_, =Jent.= Cat. Ost. Leyd. Mus. (Mus. Pays-Bas, ix.)

p. 134 (1887); =id.= Cat. Mamm. Leyd. Mus. (op. cit. xi.) p. 165

(1892).

_Antilope scythica_, =Pall.= Spic. Zool. fasc. i. p. 9 (1767);

=Müll.= Natursyst. Suppl. p. 53 (1776); =Erxl.= Syst. R. A. p.

289 (1777); =Zimm.= Spec. Zool. Geog. p. 541 (1777); =Gatt.=

Brev. Zool. i. p. 83 (1780); =Oken=, Allg. Naturg. vii. p. 1365

(1838).

_Cemas colus_, =Oken=, Lehrb. Nat. p. 736 (1816).

_Antilope colus_, =H. Sm.= Griff. An. K. iv. p. 226, v. p. 335

(1827); =Less.= N. Tabl. R. A., Mamm. p. 176 (1812).

_Saiga colus_, =Gray=, Ann. Mag. N. H. (1) xviii. p. 231 (1846).

_Gazella colus_, =Turner=, P. Z. S. 1850, p. 168.

VERNACULAR NAMES:--_Saigàk_ in Russian; _Suhak_ or _Baran

polnii_ in Polish; _Ak-kirk_ of the Tartars; _Sogak_ of

the Caucasians; _Gorossuun_, the male _Ohna_, the female

_Scharcholdsi_, of the Calmucks; _Jaban-choin_ of the Turks;

_Beschen-Chusch_ of Circassians; _Linjodsha_ of Chinese.--PALLAS.

Height at withers about 30 inches. General colour in summer dull

yellowish, with a whitish throat and indistinct facial markings; in

winter nearly uniform whitish all over, without markings anywhere. Ears

very short, thickly haired. Tail short, uniform in colour with the body.

Skull and horns of male as above described (p. 29). The dimensions of

an old male skull are:--Basal length 9·5 inches, greatest breadth 5·1,

muzzle to orbit 6·3.

The horns attain a length of about 13 or 14 inches, and are of a

peculiar waxy or pale amber-colour.

Female similar, but without horns.

_Hab._ Steppes of Southern Russia, and South-eastern

Siberia.

The Saiga, although closely allied to the Gazelles in structure,

is, as will be seen from our figure, very different in external

appearance, especially as regards the bloated form of the nose in the

adult male, which gives it a most ungainly look and renders it easily

distinguishable from all its allies of this group.

The Saiga was known to many of the ancient writers, and is described

and figured by Gesner, in his ‘History of Quadrupeds,’ as an inhabitant

of Scythia and Sarmatia, under the name “Colus,” which is said to have

been formed by transposition from the native name “Sulac.” The earliest

good account of it, however, is that of the well-known naturalist

J. G. Gmelin, who met with it during his travels in Siberia between

1733 and 1743, and described it at full length, in an article on new

quadrupeds published at St. Petersburg in 1760, under the name of

“_Ibex imberbis_.” Upon Gmelin’s _Ibex imberbis_ Linnæus,

in his ‘Systema Naturæ,’ based his _Capra tatarica_. Of the two

generic names proposed for this Antelope, _Saiga_ by Gray in 1843,

and _Colus_ by Wagner in the following year, we naturally prefer

the oldest, and adopt as the proper name of this Antelope, which is the

sole representative of its genus, _Saiga tatarica_.

Buffon, in his ‘Histoire Naturelle,’ also employed Saiga as the name

of this animal and based his account of it mainly upon Gmelin’s

description, stating, however, that there were specimens of its horns

in the Royal Cabinet at Paris. Following the prior authorities, he

describes the Saiga as a kind of wild goat found at that epoch in

Hungary, Poland, Tartary, and Southern Siberia in herds on the plains,

very fleet and active, and difficult of capture. We shall see, however,

that the range of this animal in Europe has become very much more

restricted in recent times.

The best modern account of the Saiga is that given in 1865, in the

Bulletin of the Imperial Society of Naturalists of Moscow, by Herr

Constantin Glitsch, of Sarepta on the Lower Volga, who was employed for

two years by the Imperial Russian Society of Acclimatisation to obtain

living examples of this Antelope for the Zoological Garden of Moscow.

In the days of Pallas, Herr Glitsch tells us, the Saiga had a wide

distribution in Europe, extending from the borders of Poland, all

across the Dnieper and the great flat southern portion of Russia to the

Caucasus and the Caspian. The European herds of this animal were also

often reinforced by large accessions from the steppes of Western Asia,

which, driven by stress of famine from their native haunts, crossed the

Ural and the Volga by the ice in winter. A hundred years later we find

a great change in the range of the Saiga, caused by the increase of

cultivation and population in the European portion of its range, which

has driven this animal back into the East. On the Dnieper, Herr Glitsch

tells us, the Saiga has altogether disappeared, in the Ukraine it is

no longer to be found, and even on the Don, where it was formerly so

plentiful, it is quite a scarce animal. Nowadays, in fact, in Europe

the Saiga is confined to the Kalmuk Steppes between the Don and the

Volga, and is found only within the triangle lying between these two

rivers, of which Tzaritzyn on the Volga forms the northern point.

On the flat and treeless plains which lie within these limits the Saiga

still exists in tolerable abundance, though diminishing in numbers

yearly as population increases. In the summer months it is distributed

over the whole of this area; in winter, beginning from November, it

is driven by the snow and cold from its northern resorts towards the

south, where it finds shelter in the rich grassy valleys of the Sal

and the Manitsch. Here the Saiga passes the winter on ground generally

free from snow. Here it breeds in the spring, and as soon as the snow

is melted in the more northern plains it begins its migration to the

North. At this season the Saigas go northwards in considerable herds,

the bucks first, followed by the does, and by the end of May they have

all reached the most northern boundaries of their range. But there

are many circumstances which interfere with the regularity of this

migration, and at Sarepta, near the north end of their area, there are

remarkable variations in their numbers. In some summers only a few

scattered individuals are to be met with, in other years large herds

are to be found in this district throughout the summer. But in very

severe winters, when even the most southern districts inhabited by this

Antelope are invaded by excessive cold and deep snow, the hungry beasts

are driven all over the country in search of food, and stray even as

far north as the vicinity of Sarepta. On these occasions whole herds

are often entombed in the snow-drifts and fall an easy prey to the

natives, who follow them on horseback and slaughter them by hundreds.

Under these circumstances it can easily be understood that the Saiga is

a gradually vanishing animal in Europe. One thing, however, is in their

favour, that the males, whose presence is betrayed by their horns, fall

more easy victims to the hunter than the hornless females, which are

more readily concealed in the herbage and thus escape notice.

[Illustration: Fig. 49.

Group of Saigas (1/12 nat. size).

(From the ‘Royal Natural History,’ vol. ii. p. 298.)]

Herr Glitsch gives us detailed and excellent descriptions of the form

and colouring of the Saiga, and of the other peculiarities of the

animal of both sexes and in all ages. In the winter coat the hairs on

the upper part of the body are from two to three inches long, rather

shorter on the underparts, and a long beard extends from the chin down

the middle line of the neck to the breast. The older the animal is the

brighter is its winter dress.

The voice of the Saiga is stated by Glitsch to be a deep loud

bleat, which is frequently uttered by the young animals, but by the

older animals only in the pairing-season and when they are wounded.

The hearing, the sight, and the smell of the Saiga are all highly

developed, and combine to render it a very difficult animal for the

hunter to approach.

The Saigas are said to begin breeding about the middle of December

(new style), and at this season commonly assemble in large herds in

the warm side-valleys of the Sal and Manitsch, which are mostly free

from snow. At this time the young are said to be driven away from the

parents in flocks into the thickets, while the males fight fiercely one

with another for the possession of the females. The female is stated to

go five months with young, and to bring forth about the middle of May

amongst the higher vegetation of the steppe. As a rule, she produces

two young ones, seldom only one. The mother is sometimes seen followed

by three young ones, but in such a case the third is, probably, an

adopted animal. In the morning, after suckling her young ones, the

mother leaves them concealed in the herbage, and goes far off to feed,

returning to them only in the evening and staying with them all night.

In about four weeks’ time the young Saigas learn to feed themselves,

and the young horns begin to appear in the bucks. They suck, however,

till the end of October, and follow after the mother up to the winter.

The food of the Saiga consists not so much of the true grasses as of

the leafy shrubs of the steppes, such as _Artemisia_, _Atriplex_, and

_Glycirhiza_, as well as _Inula dysenterica_ and other saline plants.

Besides mankind, Herr Glitsch tells us, the Saiga Antelope in the Volga

district has no special enemy. The wolves and foxes, the only large

beasts of prey of these steppes, can only attack quite young animals,

the older ones easily making their escape. They have one great plague

in the steppes, however, in the insects, especially a species of

_Œstrus_, by which at times they seem to be driven nearly crazy,

and with the eggs and larvæ of which their skins seem to be almost

always infested.

The flesh of the Saiga is said to be particularly tender and

well-flavoured, and more like good mutton than anything else.

The favourite mode of chase of the Saiga is to drive out on to the

steppes at early dawn with a cart containing provisions, and, after

hiding the cart in some ravine, to stalk them with a rifle in the same

manner as other large game-animals. But they are also occasionally

taken in steel traps which are set upon their favourite runs. The

Kalmuks use leather slings for the same purpose.

Beyond the Ural River the Saiga extends widely over the Kirghiz Steppes

of Central Asia north of the Aral. Mr. William Bateson, F.R.S., has

kindly favoured us with the following notes of what he heard and saw of

the Saiga when in this district in 1896–7:--

“The Saiga is fairly common in the Kirghiz Steppes, inhabiting

the dry tracts covered with various species of _Artemisia_

(Kirghiz, _Jusun_), upon which no doubt it feeds. It is not

found in the sandy regions of the Kara-kum. I believe also that

it does not live in the moister steppes, which bear a meadow

vegetation. Its northern distribution in West Central Asia

must therefore be bounded by the valley of the Irtish and its

tributaries, which is all meadow-land. I met with Saigas first

at the end of July 1896, in the neighbourhood of Lake Tschalkar,

in the Turgai district. In this region we came upon their tracks

constantly, and occasionally saw herds of various sizes from ten

or a dozen to about a hundred. When we appeared they made off.

In doing so I noticed that they generally travelled at right

angles to our line of approach, though this may have been due to

some accident in the lie of the ground. The Kirghiz catch them

in traps set in their runs. A young one so caught was brought to

me on July 27, 1896. Its horns and horn-cores were only slightly

developed.

“In the following year I travelled from Kozalinsk, on the

Aral Sea, to Lake Balkhash, following the Shu River. In this

journey we saw Saigas from time to time on the edge of the Bek

Pak Dala, or Hungry Steppe, in April, but no large herds were

seen. The Kirghiz spoke of them as common in the Bek Pak. Both

this district and the Tschalkar Steppes, except for wells on

the caravan-roads, are almost waterless after the snow has

disappeared, so probably the Saiga can subsist without more

water than the dew and its food-plants provide.

“The Kirghiz name of the Saiga is ‘_Kiik_’ and the word

Saiga is only known to them as Russian, in which language,

however, the word is not really ‘Saiga,’ but ‘Säigak.’”

As regards the range of the Saiga at the present time, Herr E.

Büchner, Director of the Zoological Museum of the Imperial Academy of

Sciences of St. Petersburg, has kindly favoured us with the following

particulars:--

The Saiga is still met with, although very unfrequently, in the country

of the Ural Cossacks between the Wolga and the Ural, and extends

occasionally into the Government of Samara. East of the river Ural its

range extends over the Kirghiz Steppes and the steppe district of all

West Siberia--Turgai, Akmolinsk, and Semipalatinsk. South of this the

Saiga is also found in the steppes of Russian Turkestan and in the

Dsungarian steppes of Western Mongolia, but not in Transcaspia.

Such is the range of the Saiga at present. As already shown, it was

much wider than now even within the period of history. But when we go

back into the Pleistocene times we have good evidence that the Saiga

had a very much more extensive range, its fossil remains having been

obtained from the caverns and superficial deposits of Hungary, Belgium,

and Southern France. In the last-named country the researches of

French palæontologists have proved that its bones and teeth occur in

considerable numbers in certain of the cave deposits in the Departments

of Vienne, Dordogne, Tarn-et-Garonne, and Haute-Garonne. Moreover, as

shown by Mons. Gervais, at least one recognizable sketch of the head

of the Saiga has been found on an artificially incised bone of the

character so often met with in caverns where relics of human handiwork

occur. It appears, therefore, that the Saiga inhabited Western Europe

as late as the era of Palæolithic man, and was, moreover, in all

probability one of the objects of his chase.

Still more interesting, however, is it to find that, as shown by

Mr. A. Smith Woodward in a paper read before the Zoological Society

in 1890, the Saiga was also found in former days in Great Britain.

During excavations made in that year in the Pleistocene deposits

near Twickenham, a fine example of the frontlet and horn-cores of an

adult male _Saiga tatarica_ was discovered. By the kindness of

the Zoological Society we are enabled to reproduce the figure of this

interesting specimen (fig. 50, p. 39), which was exhibited by Mr. A.

Smith Woodward on the occasion in question, and is now in the gallery

of the British Museum.

Finally we may mention that, as has been recorded by Prof. Nehring,

there have been discovered in Moravia remains of a Saiga differing

from the living species in having three, in place of two, lower

premolars[2]. From the occurrence of these remains, and those of other

mammals now characteristic of the steppes in Western Europe, it has

been argued by geologists that steppe-like conditions and climate

must formerly have prevailed over large districts that have now quite

changed their character.

[Illustration: Fig. 50.

Frontlet and horns of Saiga (fossil), ♂. ½ nat. size.

(P. Z. S. 1890, p. 614.)]

The book of antelopes, vol. 3 (of 4) · 第 2 / 18 段