130 



PROCEEDINGS OF THE ACADEMY OF 



[April, 



Head 3|; depth 5; D, I, 7; A. iv, 41; head width If its length; 

 snout 2|; eye 7|; maxillary 2^; interorbital 2|; mouth width 2|; 

 dorsal height 2; pectoral 1|; ventral 2; least depth of caudal peduncle 

 3j; upper caudal lobe If. Body greatly compressed, upper profile 

 straight, lower convex. Caudal peduncle about long as deep. Head 

 wide, greatly depressed, depth over eye half its width. Snout greatly 

 depressed, broadly spatulate, length about | its width. Eyes lateral, 

 though more inferior, almost covered by adipose-eyelid, midway 

 in head length. Mouth broad, gape about f to eye. Upper jaw 

 produced well beyond lower, its teeth broadly exposed. Mouth 

 roof smooth. Upper buccal fold very broad. Tongue wide, thick, 

 fleshy, not free. Fine concealed maxillary barbel about f of eye. 

 Front nostril about first | in snout. Hind nostril about midway 

 between snout tip and hind eye edge. Interorbital convex, with 

 long median fontanel which broader anteriorly and not extended 

 back to occipital process. Rakers iii 3+4 x, short, lanceolate about 

 ^ of filaments, which nearly long as eye. Body everywhere with 

 smooth skin. Spinous dorsal inserted close behind head or little 

 nearer anal origin than snout tip, fin base about i its height. Adi- 

 pose fin inserted about last third between depressed spinous dorsal 

 tip and caudal base, fin equals 1^ eye-diameters. Anal origin mid- 

 way between hind eye edge and caudal base, fin long and low, slightly 

 higher anteriorly. Caudal well forked, pointed lobes about equal. 

 Pectoral low, reaches f to ventral. Ventral origin at last f between 

 pectoral and anal origins, reaches anal. Vent close before anal. 

 Color in alcohol largely dull brownish, paler below. Head above 

 and back with obscure slaty or darker marblings. Fins pale brown- 

 ish. Length 280 mm. Cotype (type) No. 8,389, A. N. S. P. 



Also another cotype: Head 3|; depth 5|; D. I, 5; A. iv, 41; snout 

 2| in head; eye 7J; maxillary 2^; interorbital 2; length 178 mm. 

 (caudal tips damaged). 



22. Platystacus cotylephorus Bloch. 



23. Aspredo aspredo (Linne). 



24. Callichthys callichthys (Linne). 



25. Plecostomus plecostomus (Linne). 



26. Loricariichthys typus (Bleeker). 



27. Loricaria cataphracta Linne. 



28. Curimata copei Fowler. 



(Proc. Acad. Nat. Sci. Phila., 

 1906, p. 301, fig. 7.) 



29. C. schomburgkii (Gunther). 



30. Curimaiella alburnus (M tiller and 



Troschel) . 



31. Astyanax caucanus (Steindachner). 



32. A. bimaculatus (Linne). 



33. Gasteropelecus sternicla (Linne). 



34. Charax gibbosus (Linne). 



35. Hoplias malabaricus (Bloch). 



36. Erythrinus unitceniatus Agassiz. 



37. Gymnotus carapo Linne. 



38. Sternopygus macrurus (Schneider). 



39. Anableps anableps (Linne). 



40. Poecilia vivipara Schneider. 



41. Mugil incilis Hancock. 



42. Trichiurus lepturus Linne. 



43. Caranx latus Agassiz. 



44. Selene vomer (Linne). 



45. Centropomus pectinatus Poey. 



