226 THE ZOOLOGIST. 
11. Cole’s Char, S. Colii. Lough Eske, and Lough Dun, 
Ireland. 
12. Gray’s Char, S. Grayi. Lough Melvin, Leitrim, Ireland. 
13. The Gwyniad, Corregonus clupeoides. Loch Lomond, 
Ulleswater, Haweswater, and Bala Lake, North Wales. 
14. The Vendace, C. vandesius. Loch Mahen, Dumfriesshire. 
15. The Pollan, C. pollan. Lough Neagh and Lough Earne, 
Ireland. 
These fifteen peculiar fishes differ from each other and from 
all British and Continental species, not in colour only, but in 
such important structural characters as the form and size of the 
fins, the number of the fin-rays, and the form or proportions of 
the head, body, or tail. They are, in fact, as Dr. Giinther points 
out, just as good and distinct species as any other recognised 
species of fish. 
Did space permit, we should like to notice many other matters 
of much interest which are dwelt upon in the work before us: 
such, for instance, as the author’s remarks on Sharks and Shark- 
fisheries (p. 315); on Electric Rays (p. 339); on the properties 
and affinities of that remarkable Australian fish, the ‘‘ Barra- 
munda” (Ceratodus), the survivor of an extremely ancient form, 
until recently believed to be extinct (p. 357); on Angler-fish 
(p. 470); on Flying-fish (pp. 481, 621); Whitebait (p. 658); and 
Eels (pp. 671, 672). On all these subjects the student of Ich- 
thyology will find valuable information, and the general reader 
much to interest him. ‘The directions for collecting and pre- 
serving fish with which the volume closes will be found of great 
utility not only to travellers abroad, for whose benefit they are 
chiefly designed, but to students at home, to whom the acquisition 
of fresh specimens is of the highest importance. 
The natural history of fishes has never before been so fully 
and so ably dealt with as in the present admirable text-book, the 
publication of which may be said to mark a new era in the study 
of Ichthyology. On closing the volume, after a careful study of 
its contents, we have only one expression of regret to offer, 
namely, that the author has not given more references to im- 
portant works and memoirs, wherein the student may find fuller 
details of the life-history of notable species than it has been 
possible to give in a work which purports to be only an “ Intro- 
duction to the study of Fishes.” 
