1914.] NATURAL SCIENCES OF PHILADELPHIA. 283 



base, spine pungent or about | length of fin, and latter depressed 

 half-way to anal. Vent falls about last | in space between depressed 

 ventral tip and anal origin. 



Color in alcohol largely dull brownish, paler below. A dark or 

 dusky lateral streak extends from hind eye edge back to median 

 caudal base, though in position parallel and just above posterior 

 or lower branch of 1. 1. At its termination on caudal base a black 

 pale-edged ocellus not much larger than pupil, and another on 

 fourth to sixth scales of 1. 1. about equal to eye in size. Vertical fins 

 grayish, dorsal paler basall'y, and subterminally lengthwise pale or 

 whitish streak its entire length and extending back to point of rayed 

 fin. Last dorsal rays with about four transverse whitish streaks. 

 Anals with lower edge dusky, and upper posterior half of fin with 

 about six whitish transverse streaks. Caudal grayish, lower edge 

 darker, and with about six transverse whitish streaks, ^^entral 

 and anal whitish. Iris slaty. Lower surface of head pale. 



Length 162 mm. 



Type, No. 39,349, A. N. S. P. Rupununi River, British Guiana. 

 J. Ogilvie. 



Only the type known. Apparently related to Crenicichla saxatilis 

 (Linnaeus) and C alia Eigenmann, though differs at once in coloration. 



(Ihspo'^, fin; YpaiJ-irfi, line; with reference to the pale submarginal 

 streak on the dorsal fins.) 



TETRODONTID^. 



ColomeSUS psittacus (Schneider). 



Three small examples. 



Achirus lineatus (Linnaeus). 



Two examples. 



SOLEID^. 



Faunal Works. 



Bleeker, Pieter. 1S62. Descriptions de quelques Especes Nouvelles de 

 Silures de Suriname. Verdag. Med. Kon. Ak. Wet., Amsterdam, XIV, 1862, 

 pp. 371-389. 



1863. Sur quelques Genres Nouveaux du Groupe des Doras. Ned. Tijds. 



Dierk., Amsterdam, I, 1863, pp. 10-18. 



1864. Description des especes de Silures de Suriname conservees aux 



musees de Leide et d 'Amsterdam. Nat. Verhandel. Holl. Maatsch. Wetensch., 

 Haarlem, (2), XX, 1864, pp. 1-104, Pis. 1-16. 



1866. Description d'une espece inedite de Stolephorus de Suriname. 



Ned. Tijds. Dierk. Amsterdam, III, 1866, pp. 178-180. 



Blos-ser, Christian B. 1909. Reports on the Expedition to British Guiana 

 of the Indiana University and the Carnegie Museum, 1908. Report No. 3. 

 The Marine Fishes. Ann. Carnegie Mus., VI, No. 1, 1909, pp. 295-300. 



Bryant, William. 1786. Account of an Electrical Eel, or the Torpedo of 

 Surinam. Trans. Amcr. Philos. Soc., Phila., II, 1786, pp. 16()-169. 



