BRANNER-AGASSIZ EXPEDITION TO BRAZIL 1 65 



In Jordan and Evermann's ' Fishes of North and Middle America' 

 (Vol. I, p. 846), this species is described as having the head \ the 

 length (to Ifase of caudal), the depth i. These measurements are 

 copied from Giinther's Catalogue of Fishes, Vol. I, p. 19, no note 

 being made of the fact that, as there given, they refer to ^ and ^ of the 

 total length, including the caudal fin. In the specimen at hand the 

 head is ^.and the depth | the length to base of caudal. 



26. Holocentrus ascensionis (Osbeck). 

 Mouth of the Rio Goyanna. 



27. Upeneus maculatus (Bloch). 

 Maceio. 



28. Upeneus dentatus Gill. 

 Maceio. 



29. Upeneus caninus new species. 



One specimen, 200 mm. long, from Fernambuco. 



Characterized by the large scales, the outer canines in upper jaw, 

 the long hog-like snout, the profusely branched tubes of the lateral 

 line and the coloration. 



The profile rises in a straight or slightly incurved line from the tip 

 of snout to front of orbit, thence in a well arched curve to front of 

 dorsal, where the depth is greatest. The snout is very long. The 

 distance from front of eye to tip of snout is greater by more than half 

 the diameter of pupil than the distance from front of eye to end of 

 opercular spine. The mouth is nearly horizontal, the maxillary 

 greatly broadened at tip and hooked upward. The distance from tip 

 of snout to the end of the maxillary is contained 2|- times in the 

 length of the head. 



The teeth in the lower jaw are strong, bluntly conic, in a single 

 series, none of them definitely canine-like. On the middle of one side 

 of the jaw two of the teeth are larger than the others, but this is not 

 true of the other side. The premaxillary teeth are in a single series, 

 similar to those in the lower jaw, those anteriorly more widely spaced 

 than those on the side of the jaw. In front of this series anteriorly 

 are two strong canines on each side, the anterior of which is directed 

 downward, the posterior one curved almost directly backward, paral- 

 lel with the jaw. There are no teeth on the vomer or the palatines. 

 There are three rows of scales on the cheeks, one on the interopercles, 

 three on the opercles. 



The angle of the preopercle and a portion of the vertical limb have 

 fine cross-ridges, which form minute crenulations at the free margin 



