450 FISHES. 



Small species, abundant in the Indo-Pacific, disappearing 



Fig. 200.— Eqnula edentiila. 



on the coasts of Japan and Australia. Some eighteen species 

 have been described. 



Gazsa is very similar to Equula, but armed with canine 

 teeth in the jaws. 



Other genera referred to this family are Lactarius (L. deli- 

 catidus, common, and eaten on the East Indian coasts), Serio- 

 lella, Paropsis, and Platystethus. 



Thied Family — Cyttid^. 



Body elevated, compressed, covered ivith small scales, or ivith 

 hucklers, or naked ; eye lateral. Teeth conical, small. No 

 tony stay for the prceoperculum. Dorsal fin composed of tvio 

 distinct portions. Ventrals thoracic. No prominent papilla 

 near the vent. Gill-opening wide. More than ten abdominal 

 and more than fourteen caudal vertebrce. 



The fishes of the " Dory " family are truly marine, and 

 inhabit the temperate zone of the Northern and Southern 

 Hemispheres. Some fossils from tertiary formations (one from 

 Licata) belong to the genus Zeus. 



