328 



CLASSIFICATION OF FISHES^ ETC. 



Trichoderma S"vr. Body scored, or divided into diamond- 

 shaped compartments^ as in Balistes ; pelvis pro- 

 jecting ; sides of the tail with spines, and sometimes 

 furnished with a fascicle of rough hristles. 



T. scapus. Lac. i. pi. 18. f. S. histrix. Sw. Gray, Ind. Zool. 



3. SuBFAM. TETRAODIN^. 



Body slightly scabrous, or defended only by short 

 prickles, more conspicuous on the lower part ; belly 

 capable of being greatly inflated ; jaws sharp, cutting, 

 each divided into the appearance of two teeth. 



Tetraodon Linn. Head short ; the body being entirely 

 covered with prickles. 



T. lineatus. Bloch,141. maculatus. Hamilt. 18. iig. 2. 



testudineus. lb. 139. fluviatilis. lb. pi. 30. fig. 1. 



Leisomus Sw. Head short ; the body entirely smooth, 

 T. lavissimus Sch. marmoratus. HamDt. pi. 18. fig- 3. 



Lagocephalus Sw. Head short; the upper parts of 

 the body smooth ; the beUy armed with angulated 

 spines, as in Diodon. 

 L. stellatus. Bl. pi. 143. Pennantii. Yarrell, ii. 347. 



CiRRHisoMus Sw. Sides of the body furnished with 

 cirriform processes. 



c. Sprengleri. Bloch, pi. 1 44. 



PsiLONOTUs Sw. Fore part of the head and muzzle 

 prolonged, narrow, as in Balistes ; the back cari- 

 nated ; belly furnished with prickles. 

 P. rostratus. Bl. pi. 146. Electricus. Ph. Tr. 76. pi. 3. 



