Transcriber's Note:

The cover image was created by the transcriber and is placed in the public domain.

GUIDE TO THE STUDY OF FISHES

VARIATIONS IN THE COLOR OF FISHES
The Oniokose or Demon Stinger, Inimicus japonicus (Cuv. and Val.), from Wakanoura, Japan. From nature by Kako Morita.
Surface coloration about lava rocks.
Coloration of specimens living among red algæ.
Coloration in deep water; Inimicus aurantiacus (Schlegel).

A GUIDE
TO
THE STUDY OF FISHES

BY

DAVID STARR JORDAN

President of Leland Stanford Junior University

With Colored Frontispieces and 507 Illustrations