ILLUSTRATIONS IN COLOR 



FACING 

 PAGE 



Plate VIII. — Fig. A. Argyropelecus. A Lumines- 

 cent Deep-Sea Fish with Eyes Directed 

 Upward. Fig. B. Sternoptyx. A Common Deep- 

 Sea Fish with Part of the Bony Skeleton 

 Visible through the Skin of the Body. 



Painted by Dwight Franklin. Frontispiece 



Plate I. — Scarlet-Tailed Triggerfish, Xan- 



ihichthys ringens (Linne) . , . . . 36 



Painted by Helen Tee- Van. 



Plate II. — Butterflying Fish, Cypselurus furcatus 



(Mitchill) 68 



Painted by Helen Tee- Van. 



Plate III. — Young Fish Taken at the Surface 



IN Mid-Ocean . . . . . .166 



Fig. a. Young of the Giant Sunfish, Mda mola (Linn^). 

 " B. Young of an unknown Soldier-fish, Holocentrus. 

 " C. Young of an unknown Pomfret, Tarades. 



Painted by Don Dickerman. 



Plate IV. — Parti-Colored Bumpheads, Bodianus 



eclancheri (Valenciennes) ..... 192 

 Painted by Isabel Cooper. 



Plate V. — Luminous Surface Fish in Daylight 



AND Darkness ...... 214 



Painted by Helen Tee- Van. 



xiu 



