Collected by Charles Fredei'ick Hartt. 293 



Apiihocdidx (lU)urnus Eigenm. & Eigenm., Proc. U. S. Nat. ]Mus., XIV., 55. 

 1891. 



Hdhitat : — Peruvian Amazon. 



135. Aphyocarax maxillaris sp. nov. 



Maxillary with minute teetli along its entire margin. Intermaxillary with 

 about 10 teeth, the inner 4 three-pointed. Mandihle witli a few conieal teeth 

 in front. 



Depth 3-3J, head 3J, D. 11, A. 22-23, scales 30, tubes 6. Snout very short, 

 the maxillary extending beyond the anterior margin of the eye. Eye about 

 twice the length of snout, f length of head. Origin of dorsal equidistant from 

 tip of snout and base of caudal. Pectorals extend beyond origin of ventrals, 

 the latter to the anal. 



A small circular humeral spot, sometimes reduced to two or three color 

 cells. A large black spot on upper half of tii'st dorsal rays, the tips of these 

 rays white. A small black spot near tip of first few anal rays. 



It is possible that anal 27 as given for A. agassizii is a misprint 

 for A. 23, in whieli ease the present species may prove identical 

 with A. agassizii Steindachner. 



Habitat: — Brazil. Ten specimens 10-11 ram. long. 



136. Apliyocarax agassizii (Steindachner), 



Cheirodon agassizii Steind., Flussfische Siidamerika's, IV., 38, 1883 (Jatua- 

 raua); Eigenm. & Eigenm., Proc. U. S. Nat. Mus. XIV., 54, 1891. 



Habitat : — Jatitarana. 



137. Apliyocarax eqiies (Steindachner) 



^ Cheirodon equesSteind., Flussfische Siidamerika's, IV., 37, 1882 (Villa Bella; 

 Obidos). 



Chciroden eqiies Eigenm. & Eigenm., Proc. U. S. Nat. Mus., IV., 54, 1891. 



Habitat: — Yilla Bella; Obidos. 



138. Apliyocarax lieterestlies sp. nov. 



Maxillary teeth 6, conical ; intermaxillary with 8 conical, and 2 with lateral 

 cusps on each side ; mandible 10 conical, 4 with lateral cusps on each side. 

 Tliis species may prove identical with f. af/as!<izii or C. cques of Steindachner. 

 From the former it differs in having only the upper part of its maxillary den- 

 tiferous and apparently in ha^-ing the anal rays graduated. From the latter it 

 differs in ha\'ing no humeral spot. Depth 3, head 3^, D. 11, A. 27-30, scales 

 about 31. Snout very short, the maxillary long, extending considerably 

 beyond the anterior margin of the eye. E\e twice the length of the snout and 

 f the length of the head. 



Origin of dorsal midway between tip of snout and base of caudal. Pec- 

 torals extending beyond the tip of the axillary scales of the ventrals, the latter 



