162 



PISCES. 



Order II. LOPHOBRANCHII. 



Jaws complete and free ; gills disposed in pairs 

 of small round tufts, along the arches ; gill-cover 

 large ; gill-orifice small ; body angular, covered 

 with bony plates. 



Hippocampus (Cuv.). Sea-horse. 

 Jaws united into a tube, the mouth 

 at the tip ; body compressed, deep, 

 marked by ridges lengthwise and 

 crosswise ; pectoral and dorsal in 

 both sexes, anal in the female ; 

 no ventrals nor caudal. 



H. brevirostris. Fig. 243 ; \ n. s. 



Syngnathus (Linn.). Pipe-fish. 

 Body long, slender, tapering, co- 

 vered with plates set lengthwise ; no ventrals ; 

 jaws as in Hippocampus. 



S. acus. S. ophidion. 



typhle. anguineus. Fig. 244 ; J n. s. 



eequoreus. lumbriciformis. 



