[66] _Aplysia punctata_, of which two specimens, one viewed sidewise,
and the other mounting an angle of rock, showing the front of its head,
are depicted in Plate XVI. Sowerby applied the name of “_hybrida_”
to the species, and Forbes and Hanley have adopted it; but even the
inflexible law of priority does not warrant the perpetuation of a name
which is glaringly absurd, and expresses a manifest contradiction; for
if the creature were a hybrid, it would not be a species, and not be
entitled to a specific name.
[67] _Outlines of Comp. Anatomy_, p. 371.
[68] _De Anim. Marin._, quoted in Johnston’s _Introd. to Conchology_,
p. 18.
[69] This animal will be described in a subsequent chapter.
[70] _Journal of Researches_, chap. i.
[71] Johnston.
[72] _Dentalium entalis_, represented at the right-hand corner of the
foreground in Plate XVII.
[73] _Pileopsis Hungaricus_, of which a specimen is represented in the
attitude of life, adhering to the dark rock, in Plate XVII.
[74] _Litt. de la France_, i. 133.
[75] _Gammarus locusta._
[76] Bate and Westwood’s _Crustacea_, p. 382.
[77] Bate and Westwood, p. 380.
[78] Bate and Westwood, p. 391.
[79] It is named _Ligia oceanica_, and is represented in Plate XVII.,
in the centre of the picture.
[80] _Phyllodoce viridis_.
[81] _P. laminosa_, represented in the middle and right of Plate XVIII.
[82] _Litt. de la France_, ii. 223.
[83] _Nereis margaritacea_, of which the head and fore parts of the
body crawling over a stone are depicted at the left-hand corner of
Plate XVIII.
[84] _Polynoe cirrata._
[85] Dr. Williams, _On the British Annelida_, p. 219.