_Distribution._--Semi-arid habitats on the coastal plain of Veracruz,

Mexico, from Tecolutla to Lerdo de Tejada and Piedras Negras (fig. 2).

_Specimens examined._--Total of 27, as follows: MEXICO: _no specific

locality_, AMNH 19614-15, 19621-24, 19642-43, NMW 16827. _Veracruz: no

specific locality_, AMNH 19618-20, CAS 73640, NMW 16829; _4 km. S

Alvarado_, KU 58124; _14 mi. N Alvarado_, UIMNH 46978; 6 mi. SE Boca

del Rio, UIMNH 28023; Etiopa, 2 mi. S Tecolutla, UIMNH 3847; _ca._ 30

mi. E Jalapa, AMNH 81948; 3 mi. NW Lerdo de Tejada, UMMZ 114484-85;

Paso del Macho, USNM 109708; Rio Blanco, 20 km. WNW Piedras Negras, KU

23253; Veracruz, AMNH 19612, UF 8990; _W side Veracruz_, AMNH 19616;

_2 mi. W Veracruz_, AMNH 19617, 19619.

=Conophis lineatus concolor= Cope

_Conophis vittatus_ Cope, Proc. Acad. Nat. Sci. Philadelphia,

13:300, December 28, 1861 (_nec_ Peters, 1860; type.--United

States National Museum, no. 4941; type locality--"Peten,"

Guatemala); Journ. Acad. Nat. Sci. Philadelphia, ser. 2,

8:137, 1876; Bull. U. S. Natl. Mus., 32:76, 1887.

_Conophis concolor_ Cope, Proc. Acad. Nat. Sci. Philadelphia,

18:318-319, February 20, 1867; Journ. Acad. Nat. Sci.

Philadelphia, ser. 2, 8:137, 1876; Bocourt _in_ Dumeril,

Bocourt and Mocquard, Mission Scientifique au Mexique et dans

l'Amerique Centrale, 2:648, 1886; Mueller, Verh. Ges. Basel,

8:263, 1887; Cope, Bull. U. S. Natl. Mus., 32:77; 1887; Ann.

Rept. U. S. Natl. Mus. for 1898, p. 1095, 1900; Schmidt and

Andrews, Zool. Ser. Field Mus. Nat. Hist., 20:178, October 31,

1936; Andrews, Zool. Ser. Field Mus. Nat. Hist., 20:358,

December 28, 1937; Smith, Occas. Papers Mus. Zool. Univ.

Michigan, 388:7, October 31, 1938; Taylor and Smith, Univ.

Kansas Sci. Bull., 25:253, July 10, 1939; Smith, Zool. Ser.

Field Mus. Nat. Hist., 24:31, January 30, 1939; Cochran, Bull.

U. S. Nat. Mus., 220:167, 1961; Neill and Allen,

Herpetologica, 17:44-46, fig. 3, April 15, 1961.

_Conophis lineatus_ (in part), Guenther, Biologica

Centrali-Americana, p. 165, March, 1895; Gaige _in_ Pearse,

_et al._ Carnegie Inst. Washington Publ., 457:302, February 5,

1936.

_Conophis lineaticeps_ Cope, Ann. Rept. U. S. Natl. Mus. for

1898, pp. 1094-95, 1900 (Substitute name for _Conophis

vittatus_ Cope, 1861, _nec_ Peters, 1860).

_Conophis lineatus concolor_, Smith, Journ. Washington Acad.

Sci., 31:122-123, March 15, 1941; Proc. U. S. Natl. Mus.,

92:395, November 5, 1942; Proc. U. S. Natl. Mus., 93:407,

October 29, 1943; Smith and Taylor, Bull. U. S. Natl. Mus.,

187:43, October 5, 1945; Univ. Kansas Sci. Bull., 33(pt.

2):352, March 20, 1950.

_Types._--Two in the United States National Museum, no. 12368 (two

specimens). Type locality: "Yucatan," restricted to Chichen Itza,

Yucatan, Mexico by Smith and Taylor (1950:352).

_Diagnosis._--Dark stripes either absent posterior to the nape, or

present as a row of small spots on fourth or seventh scale-row; no

dark stripe on first scale-row; eight supralabials having dark ventral

margins.

_Variation._--Forty-five specimens have 158 to 170 (163.7 +- 1.56)

ventrals. Thirty-eight of these snakes having complete tails have 56

to 74 (66.7 +- 4.77) subcaudals; the number of ventrals plus subcaudals

varies from 222 to 245 (230.6). In 45 specimens the reduction from 19

to 17 dorsal scales takes place between ventrals 89 and 114 (102.5 +-

5.57). Sexual dimorphism is evident in the number of subcaudals; 16

females have 56 to 65 (61.8), and 22 males have 68 to 74 (70.3)

subcaudals. The longest specimen (USNM 46395) is a male from Chichen

Itza, Yucatan, having a body length of 893 mm., a tail length of 274

mm., and a total length of 1167 mm. A juvenile (AMNH 38833) from

Chichen Itza, Yucatan, has a body length of 194 mm., a tail length of

50 mm., and a total length of 244 mm.

The venter is immaculate white or pale yellow and the dorsum of the

body is immaculate pale gray to pale olive. Some specimens have small

dark brown spots on the tips of the scales of the 4th or of the 7th

row, but never on both. Only on the nape are spots present on both the

4th and the 7th rows; these spots are the posterior continuations of

the dark stripes on the head and on many specimens do not reach the

nape. Posterior to the place of scale reduction from 19 to 17 rows by

the fusion of the 3rd and 4th rows of scales, the dark spots (when

present) are on the 3rd or 6th row of scales.

The coloration of juveniles is the same as that of adults. Color in

life is thought not too different from that of preserved specimens,

for notes on the color of living individuals (Neill and Allen,

1961:44) agree with what I have observed on preserved snakes.

_Remarks._--The specimen from "Peten" (USNM, no. 4941) is the only

specimen that has a controversial history. As can be seen from the

synonymy of the species, the relationship of this specimen with the

rest of the genus has been interpreted in several ways. Smith

(1941:122-123) stated that the above specimen was catalogued as being

from El Salvador; however, the locality was presumed by him to be El

Peten, Guatemala, due to the presence in the bottle of a piece of

paper inscribed "_Conophis vittatus_, Peten, J. M. Dow." This specimen

is the one mentioned by Cope (1861:300, 1876:76, and 1900:1094-95),

and in the first paper is ascribed to Guatemala. In 1900 this specimen

was named _C. lineaticeps_ by Cope who thought the specimen differed

significantly from _C. concolor_ (Cope, 1867:318-319). This specimen

has the coloration normal for _C. l. concolor_ as far posteriorly as

mid-body; beyond mid-body the dark lines, typical of _C. l. lineatus_

or of _C. l. dunni_, are present. It is likely that this specimen is

an intergrade between _C. l. concolor_ and _C. l. dunni_, the other

subspecies present in Guatemala.

The only specimen not from the Yucatan Peninsula is allegedly from

Patuca, Honduras (USNM 20271). It was obtained in the 1870's. Possibly

more collecting will verify the presence of _C. l. concolor_ in

northern Honduras. This individual may be merely a genetically

aberrant specimen from an area where normal specimens are _C. l.

dunni_. Neill and Allen (1961:44-45) suggested that the specimen from

Patuca implies widely overlapping distributions for _C. l. dunni_ and

_C. concolor_. The occurrence of _C. l. concolor_ in Honduras needs to

be verified before this assumption is made. There can, therefore, at

present be no objection to the view that intergradation between the

subspecies _C. l. dunni_ and _C. l. concolor_ could occur through a

relatively broad area of El Peten and British Honduras.

Neill and Allen (1961:44-45) further suggest that the present range of

_C. l. dunni_ extends "presumably still farther northward toward the

Mexican state of Veracruz where _C. l. lineatus_ exists." Actually the

presence of the subspecies _C. l. dunni_ and _C. l. lineatus_ as

presently disjunct populations implies merely that they were

presumably a continuous population at some time in the past.

The characteristics of the genus in combination with the reduction of

dark coloration posterior to the head distinguish this snake from all

other snakes in Mexico and Central America.

_Distribution._--The Yucatan Peninsula: eastern Campeche, all of

Yucatan, probably in Quintana Roo, and the northern third of British

Honduras. A record for northeastern Honduras is questioned (fig. 2).

_Specimens examined._--Total of 48, as follows: BRITISH HONDURAS:

_Belize District_: 13.0 mi. W, 1.5 mi. S Belize, ERA-WTN BH-1562.

GUATEMALA: _El Peten, no specific locality_, USNM 4941.

HONDURAS: _Colon_: Patuca, USNM 20271.

MEXICO: _Campeche_: Champoton, UMMZ 73063-66; Encarnacion, CNHM

106462. _Yucatan: no specific locality_, BMNH 80.7.13.30; Chichen

Itza, AMNH 38826, 38833, CNHM 20610-11, 26986-87, 36299-300, 36303-04,

36307, 36316, MCZ 7422, 28748, UMMZ 68236, 73060-62, 80806, USNM

46395; Kantunil, CNHM 36301, 36305-06, 36308-09, 36312-13; _Libre

Union_, CNHM 36298, 36302, 36310-11, 36314; Mayapan, CNHM 40720;

Merida, CNHM 19411, 19413, NMW 16828; Progreso, CNHM 40721; Tekom,

CNHM 49374; Yokdzonot, CNHM 36315.

=Conophis nevermanni= Dunn

_Coniophanes imperialis imperialis_, Wettstein, Sitz. Akad.

Wiss. Wien. mathem-naturw. Kl., 143:37-38, 1934.

_Conophis nevermanni_ Dunn, Copeia, no. 4:214, December 31,

1937; Smith, Proc. U. S. Natl. Mus., 92:395, November 5, 1942;

Savage, Trans. Kansas Acad. Sci., 50:484, December 31, 1949;

Taylor, Univ. Kansas Sci. Bull., 34(pt. 1): 145-146, October

1, 1951.

_Type._--Academy of Natural Sciences of Philadelphia, no. 22423,

obtained by Emmet R. Dunn from Prof. Manuel Valerio. Type locality:

Rio Poas de Aserri (a few miles south of San Jose), Costa Rica.

_Diagnosis._--Head and body dark brown or black above with two or four

white stripes along body; usually two white lines on head immediately

above eye passing from canthus rosetralis posteriorly to connect with

white stripe on 6th row of dorsal scales; eight supralabials with

black margins above.

_Variation._--Six specimens have 173 to 183 (176.5 +- 4.00) ventrals.

Five of these snakes having complete tails have 71 to 89 (80.6 +- 7.15)

subcaudals; the number of ventrals plus subcaudals varies from 250 to

263 (257.0). In the six specimens the reduction from 19 to 17 dorsal

scales takes place between ventrals 84 and 97 (93.2 +- 4.71). Sexual

dimorphism is evident in the number of subcaudals; two females have 71

and 76 (73.5), and three males have 82 to 89 (85.3) subcaudals. The

longest specimen (ANSP 22424) is a female from San Jose, Costa Rica,

having a body length of 660 mm., a tail length of 168 mm. and a total

length of 828 mm.

The dorsal coloration (fig. 1, E) varies from a black ground-color

with two or four narrow white stripes to a dark brown ground-color

with a series of black stripes and four white stripes. In the black

specimens there are no dark stripes. The darkest specimen (NMW

16838:1) has only two white stripes; these more or less continuous

stripes are on the ventral third of the 2nd row of scales and

occasionally on the dorsalmost part of the first scale-row. The venter

is immaculate white except for black on the tips of the ventral

scales. The dorsum above the 2nd scale-row is uniform black. There are

no white stripes on the head.

The palest specimen (NMW 16838:2) has four dorsal white stripes; the

lateral pair of these stripes is on the ventral half of the 2nd and

the dorsal third of the 1st scale-rows; the dorsolateral pair is on

the dorsal two-thirds of the 6th and the ventral third of the 7th rows

of scales. This latter stripe is the posterior continuation of the

white stripe on the head, which originates immediately posterior to

the rostral scale and passes posteriorly along the canthus rostralis

and along the lateral margin of the supraocular scale to the nape.

Posterior to the place of scale reduction, the dorsolateral white

stripe is displaced ventrally one scale-row. Except for black flecks

or spots on the lateral margins of the ventrals, the venter is

immaculate white. The dorsum above the lateral white stripes is brown

and black; there is a pair of dorsolateral white stripes. The dorsal

half of the 2nd, most of the 3rd, 4th and 5th rows of scales are

black; the dorsal margin of the 3rd, both margins of the 4th, and the

ventral margin of the 5th rows are paler brown. The dorsal two-thirds

of the 7th, all but the dorsal most part of the 8th, and the middle

two-thirds of the 10th scale-rows are black; the areas between are a

medium brown.

Only six specimens are available on which to base a description of the

variation in this species. Furthermore, there are no juveniles, notes

on the colors of living individuals, or photographs of this species.

[Illustration: FIG. 4. Selected locality records for _Conophis

pulcher_ and _Conophis nevermanni_.]

_Remarks._--Taylor (1955:563-565) hesitantly referred a specimen (KU

35630) from 32 kilometers north of Barranca, Puntarenas Province,

Costa Rica, to _Conophis lineatus nevermanni_. This specimen, a

female, has 169 ventrals and ventral scale-reduction taking place

opposite the 109th ventral; both of these characters are well out of

the range of _C. nevermanni_. Furthermore, the ventral margins of the

supralabials are brown, and the pale dorsal stripes are tan and too

wide for _C. nevermanni_ (compare figs. 1, C and E). The specimen

definitely is _C. lineatus dunni_, and corresponds well with another

specimen from Costa Rica (ANSP 12232).

The dark brown or black dorsum with two or four white stripes and the

presence of eight supralabials having dark brown dorsal margins, in

combination with the characters of the genus, serve to distinguish

_Conophis nevermanni_ from other Central American snakes.

_Distribution._--Pacific coastal plain of northwestern Costa Rica and

the Meseta Central of central Costa Rica (fig. 4).

_Specimens examined._--Total of six, as follows: COSTA RICA:

_Guanacaste_: Bebedero, Rio Tenorio, NMW 16838(5). "_San Jose_," ANSP

22424.

=Conophis pulcher= Cope

_Tomodon lineatus_ (in part), Salvin, Proc. Zool. Soc. London,

28:455, 1860.

_Conophis pulcher_ Cope, Proc. Acad. Nat. Sci. Philadelphia,

20(5):308, 1869; Journ. Acad. Nat. Sci. Philadelphia, ser. 2,

8:137, 1876; Bocourt _in_ Dumeril, Bocourt and Mocquard,

Mission Scientifique au Mexique et dans l'Amerique Centrale,

2:646-648, pl. 38, fig. 6, 1886; Ferrai-Perez, Proc. U. S.

Natl. Mus., p. 196, September 28, 1886; Cope, Bull. U. S.

Natl. Mus., 32:77, 1887; Trans. Amer. Philos. Soc., 18:194,

April 15, 1895; Ann. Rept. U. S. Natl. Mus. for 1898, p. 1095,

1900; Alvarez del Toro, Reptiles de Chiapas, pp. 154-155,

1960.

_Tomodon pulcher_, Bocourt, Journ. de Zool., p. 408, 1876.

_Conophis pulcher_ var. _similis_ Bocourt _in_ Dumeril,

Bocourt and Mocquard, Mission Scientifique au Mexique et dans

l'Amerique Centrale, 2:647-648, pl. 38, fig. 6, 1886

[Type.--Museum National d'Histoire Naturelle, Paris, no. 6090;

type locality.--unknown, restricted to Tonala, Chiapas, by

Smith and Taylor (1950:326)].

_Conophis lineatus_, Guenther, Biologia Centrali-Americana, p.

165, March, 1895; Boulenger, Catalogue of the Snakes in the

British Museum (Natural History), 3:122-123, 1896; Stuart,

Occas. Papers Mus. Zool. Univ. Michigan, 292:5, June 29, 1934;

Slevin, Proc. California Acad. Sci. 4th Ser., 23:409, December

29, 1939.

_Conophis pulcher pulcher_, Smith, Journ. Washington Acad.

Sci., 31:121, March 15, 1941; Proc. U. S. Natl. Mus., 92:395,

November 5, 1942; Stuart, Contr. Lab. Vert. Biol. Univ.

Michigan, 65:19-20 (part), March, 1954; Contr. Lab. Vert.

Biol. Univ. Michigan, 68:63, November, 1954; Cochran, Bull. U.

S. Natl. Mus., 220:167, 1961.

_Conophis pulcher plagosus_ Smith, Journ. Washington Acad.

Sci. 31:121-122, March 15, 1941 (Type.--United States National

Museum, no. 109707; type locality: Tonala, Chiapas); Smith and

Taylor, Univ. Kansas Sci. Bull., 33(pt. 2):326, March 20,

1950; Stuart, Contr. Lab. Vert. Biol. Univ. Michigan,

65:19-20, March, 1954; Cochran, Bull. U. S. Natl. Mus.,

220:167, 1961.

_Conophis pulcher similis_, Smith, Proc. U. S. Natl. Mus.,

92:395, November 5, 1942; Proc. U. S. Natl. Mus., 93:408,

October 29, 1943; Smith and Taylor, Bull. U. S. Natl. Mus.,

187:43-44, October 5, 1945; Univ. Kansas Sci. Bull., 33(pt.

2):43-44, March 20, 1950; Maldonado-Koerdell, Inst. Mexicanos

Recursos Nat. Renov. pp. 132-133, 1953.

_Types._--Three in the United States National Museum, nos. 6751 (2

specimens) and 6803, obtained by Henery Hague. Type locality: "Peten,"

or "Verapaz," Guatemala. There is much doubt about localities for many

of Hague's specimens collected in the 1860's (Stuart, 1948:10). Since

_Conophis pulcher_ is found predominantly in semi-arid environments,

the types might have come from the semi-arid Cahabon, Negro, or Salama

river basins--all places near the sugar plantation that Hague managed

at San Jeronimo, Baja Verapaz. Possibly the types were obtained from

as far away as the Motagua Valley or the southeastern highlands of

Guatemala, both of which areas Hague is known to have visited.

_Diagnosis._--Paravertebral stripes present at least posteriorly (fig.

1, F); eight or ten stripes at mid-body; lateral dark stripe passing

through eye anteriorly and including at least upper one-half of second

scale-row from neck region posteriorly to place of scale reduction

near mid-body; eight supralabials immaculate or having dark ventral

margins.

_Variation._--Twenty-six specimens have 161 to 182 (169.5 +- 5.31)

ventrals. Eighteen of these snakes with complete tails have 65 to 79

(70.6 +- 3.93) subcaudals; the number of ventrals plus subcaudals

varies from 231 to 251 (239.3). In 26 specimens the reduction from 19

to 17 dorsal scales takes place between ventrals 94 and 119 (104.6 +-

4.90). Sexual dimorphism is evident in the number of subcaudals;

eleven females have 65 to 71 (68.2), and seven males have 70 to 79

(74.3) subcaudals. The longest specimen (AMNH 58364) is a female from

El Zamarano, Honduras, having a body length of 703 mm., a tail length

of 164 mm. and a total length of 867 mm. The smallest juvenile (MCZ

49793) from Tegucigalpa, Honduras, has a body length of 162 mm., a

tail length of 46 mm. and a total length of 208 mm.

The dorsal ground-color is pale brown or white; black or dark brown

stripes are present dorsally and laterally. Normally ten stripes are

present at mid-body; the first pair on the first row of dorsal scales;

the second pair on the upper half of 2nd and lower part of 3rd rows;

the third pair on 4th row; the fourth pair on 7th and sometimes part

of 8th rows; the fifth pair (paravertebral stripes) on the 9th row.

Posterior to the place of reduction from 19 to 17 rows by the fusion

of the 3rd and 4th rows, the third, fourth and fifth pairs of stripes

are displaced downward one row. Sometimes the second and third pairs

of stripes are fused resulting in only eight stripes at mid-body. On

some specimens the fourth and fifth pairs of stripes are close

together, but in none are they fused so as to result in a pattern of

six stripes at mid-body.

The paravertebral stripes begin anteriorly on the nape or at any point

on the anterior one-third of the body and continue as discrete stripes

onto the base of the tail. Anteriorly these stripes are always broken

into a series of dashes; posteriorly the stripes are continuous. In

specimens in which the paravertebral stripes do not begin on the

anterior-most part of the body, there is no paravertebral pigmentation

anteriorly.

In addition to the paravertebrals, the other dorsal dark stripes are

variable. In some specimens the stripes are present anteriorly and

gradually disappear near mid-body (the first dark stripe only on three

specimens). In other specimens the stripes are present anteriorly as

dashes and become continuous at mid-body; in others the stripes are

continuous throughout. Posteriorly continuous stripes are of uniform

width; anteriorly sometimes they are wide on the tip of each scale and

narrow on the base (fig. 1, F). The variation in continuity and width

described above is found in all of the dorsal dark stripes.

The ventrals usually have more or less conspicuous dark spots

laterally; in some specimens there are no spots. Except for the dark

lateral spots, when present, the ventrals are immaculate white.

Usually the dorsal ground-color is a pale tan, especially between the

first and second, and the third and fourth dark stripes. The areas

between the second and third dark stripes and across the dorsum

between the fourth stripes on each side are pale brown. In some

specimens the dorsum between the paravertebral stripes is still paler

brown.

Never is more than the lower third of the supralabials brown. Many

specimens have little brown, and others none. In most of those

specimens having brown on the supralabials, the chin and infralabials

are dusky tan or gray. There is little or no brown on the supralabials

or the chin in the northern part of the range (Chiapas), whereas the

greatest amount of brown on the labials and chin is found on some

specimens from the southern part of the range (Honduras). Since there

is considerable variation in the amount of brown on the chin and

labials of specimens from single localities, the slight geographic

trend in this character seemingly is not significant.

In juveniles six black or dark brown stripes boldly contrast with a

white or pale tan ground-color. At mid-body the first pair of dark

stripes is on the 1st scale row; the second pair on the 3rd and 4th

rows; the third pair on the 7th, 8th and at least the lower half of

the 9th rows (fig. 3, B). Ontogenetic change in coloration consists of

the splitting of the second and third pairs of dark stripes in the

juvenile. The first stripe does not split. Consequently adults have

ten dark stripes.

In life an adult from Tonala, Chiapas, had black stripes. The

ground-color below the second stripe, and between the third and fourth

dark stripes was tan. The area between the second and third dark

stripes was reddish-brown, as was the dorsum between the fourth pair

of dark stripes, except that the 10th scale-row was paler.

Three excellent photographs of this species have been published under

the name _Conophis lineatus_ (Ditmars, 1931:pls. 26 and 27).

_Remarks._--Smith (1941:121-122) described _C. pulcher plagosus_ from

Tonala, Chiapas, and characterized the subspecies by its having "(1)

the ventrals completely unspotted; (2) secondary lines on

paravertebral rows not continuous posteriorly; (3) all other lines on

body also somewhat spotted in appearance; (4) dusky markings on chin

and supralabial border very dim (less distinct than in _p. pulcher_ or

any member of the _lineatus_ series)." Although all Chiapan specimens

lack ventral spots, specimens from Guatemala have no spots, small

spots, or large spots. Even in specimens from Tegucigalpa, Honduras,

the southernmost limit of the range, the spotting varies from a few

inconspicuous spots to many large spots. Paravertebral rows were

continuous posteriorly in all specimens examined by me. Likewise, all

other stripes were continuous bands of uniform width posteriorly,

having appeared anteriorly as rows of spots or dashes. The amount of

brown on the chin and labials has been shown previously not to be

geographically significant. The absence of characters of adequate

significance to separate populations precludes the naming of

subspecies in this species.

Mertens (1952a:93, and 1952b:61-62) designated three specimens from El

Salvador as _C. pulcher plagosus_. In the latter paper, Mertens, on

the basis of a description of a specimen of "_C. lineatus_" from

Divisadero, El Salvador, given by Schmidt (1928:200), referred that

specimen also to _C. pulcher plagosus_. I have examined this specimen

and refer it to _C. lineatus dunni_. Although I have not seen Merten's

specimens, on the basis of the excellent descriptions given by Mertens

(1952b:61-62), I refer the three Salvadoranean specimens to _C.

lineatus dunni_.

The presence of paravertebral stripes in combination with the

characteristics of the genus distinguish _Conophis pulcher_ from all

other snakes in southern Mexico and Central America. The only

sympatric species of this genus, _C. lineatus dunni_, differs in that

it lacks paravertebral stripes, although it may have a single

vertebral stripe. _Conophis lineatus dunni_ has lateral dark stripes

that are present on the 3rd and 4th scale-rows, never on the anterior

third of the body as in _C. pulcher_. Even in juveniles the third pair

of dark stripes includes the lower part of the 9th scale-row in _C.

pulcher_, whereas the dorsal most dark stripe of _C. lineatus dunni_

never includes more than the lower part of the 8th scale-row.

_Distribution._--Pacific coastal region of Chiapas, Mexico,

southeastward into Guatemala; southeastern highlands and the dry

valley of central and eastern Guatemala; Caribbean lowlands of

Honduras southward to the region of Tegucigalpa, Honduras (fig. 4).

A Revision of Snakes of the Genus Conophis (Family Colubridae, from Middle America) · 第 2 / 5 段