eigenmann: the cheirodontin^. 95 



postorbitals leaving a very narrow naked area between them and the upper limb 

 of the preopercle. Snout pointed, maxillary scarcely reaching to origin of eye, 

 its length about .6 or .7 that of the eye; usually two maxillary teeth, rarely one 

 or three; premaxillary and mandibular teeth similar, their margins rounded, the 

 median cusp slightly the larger, five, very rarely six, teeth in the premaxillary; 

 mandibular teeth eight to ten ; the premaxillary teeth slightly directed backward, 

 the teeth in the largest specimen (6854a) are much broader, more symmetrical, and 

 the differences between the points are very slight, the smallest specimen, from the 

 same locality has fewer points and the median point is distinctly more prominent. 

 Gill rakers 7 + 10. 



Origin of dorsal a little nearer end of adipose than to tip of snout; highest 

 dorsal ray equals length of head; adipose fin well-developed; origin of anal below 

 tip or middle of last dorsal ray, the fin emarginate, its base equalling length of head 

 or a little more; tip of ventrals to the anal or 'to the third scale in front of it; origin 

 of ventrals under, or slightly in advance of, the origin of the dorsal; the pectorals 

 to the ventrals, or to the third scale in front of them. 



Scales thin, regularly imbricate; lateral line but little decurved; caudal naked; 

 anal with a few scales forming a sheath in front. 



A silvery lateral band ending in a large, oval spot on the caudal peduncle, 

 which extends a little upon the middle caudal rays and sometimes entirely across 

 the end of the peduncle. 



52. Odontostilbe pulchra (Gill.) (Plate XVII, fig. 1.) 

 Poecilurichthys pulcher Gill, Ann. Lye. Nat. Hist., Vol. VI, 1858, p. 59 (Trinidad). 

 Cheirodon (Odontostilbe) pulcher Liitken, Overs. Dan. Selsk., 1874, p. 236. 

 Odontostilbe pulcher Eigenmann &. Eigenmann, Proc. U. S. Nat. Mus., Vol. XIV, 



1891, p. 54; Eigenmann, Reports Princeton Univ. Exped. Patagonia, Vol. Ill, 



1910, p. 429. 

 Cheirodon pulcher Ulrey, Ann. N. Y. Acad. Sci., Vol. VIII, 1895, p. 290. 

 Chirodon pulcher Regan, Proc. Zool. Soc. London, 1906, p. 385 (Trinidad). 



Range: Trinidad. 



As far as known this species is confined to the Island of Trinidad. I have seen 

 no specimens. 



The following description is compiled from Regan's account: 



Head 4.5-4.66; depth 2.5-2.75; D. 11; A. 23-25; scales 5.5-32 to 34-3.5-4.5, 

 4.5-5.5 between lateral line and anal. Snout. 5 in the head, eye 2.5, interor- 

 bital 2.25. 



