COBITID^. PCECILINiE. 311 



Somileptes Sw. Body lanceolate^ much compressed, co- 

 vered with small but conspicuous scales ; eyes very 

 large_, placed near the muzzle ; caudal fin rounded. 

 S. bispinosa. Haroilt. p. 351. unispina. lb. No. 1. p. 350. 



2. SUBFAM. PCECILIN^. 



Body thick, oval, compressed ; scales large ; head small, 

 flattened above ; snout sharp ; mouth small, transverse ; 

 jaws protractile. 



PcEciLiA Sch. Body ovate ; jaws flattened horizontally, 

 lie lower jaw longest; mouth small, furnished with 

 a row of small and very slender teeth ; dorsal fin one, 

 central, and opposite to the anal ; ventral half-way 

 between the anal and pectoral fins ; caudal fin obtuse, 

 sub-truncate ; the branchia three-rayed. 



P. multUineata. Le Sueur. Am. Tr. ii. pi. 1. 



Fundulus Lac. Related to Poecilia; teeth as in the 

 last, but there are others rather stronger and conic 

 on the pharynx ; branchial rays four. 

 F. heteroclita Vol. 



Lebia Cuv. Body oval ; head small ; eyes large, placed 

 towards the summit, and near the snout ; mouth small, 

 with compressed and incurved teeth denticulated into 

 three to four points ; ventral fin very small, central, 

 placed beneath the dorsal, and half-way between the 

 pectoral and anal ; caudal truncate. 



L. elipsoides Le S. Am. Tr. ii. pi. 2. 



MoLiNESiA Le Sueur- Dorsal fin very high, and 

 nearly occupying the whole extent of the back ; 

 the anal fins placed between the ventrals ; pectoral 

 and caudal fins large, rounded ; head flattened above ; 

 mouth remarkably small; teeth small and crowded, 

 those in front hooked, the hinder ones velvetty ; 

 branchial rays four or five. 



M. latipinna Le Sueur. Am. Tr. ii. pi. 3. 



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