344 Annals of the Carnegie Museum. 



This specimen is intermediate between C. spectabile and C. kraussi 

 as described by Regan; and if the scales above the lateral line of 

 C. kraussi are not very much smaller than those below it, these 

 specimens indicate that it is a synonym of C. spectabile. 



Genus Crenicara Steindachner. 



33. C. punctulata Gunther. 

 Habitat. — Amazonia and Guiana. 



No specimens were obtained by the Expedition of the Carnegie 

 Museum. 



34. C. maculata (Steindachner). 



No. 2638, 3 cm., mouth of Rio Machupo in Rio Guapore, Aug. 27, 

 1909. 



35. C. altispinosa, sp. nov. (Plate LVIII.) 



No. 2639a, type, 5 cm., collected at night along a sand-bank in the 

 Rio Marmore. below the mouth of the Rio Guapore, Sept. ig, 1909. 

 No. 2639/), cotype, 5.1 cm., same place and date. 

 No. 2640a-//, cotypes, 3.2-5.2 cm., taken in a large lake near San 

 Joaquin, Bolivia, Sept. 4, 1909. 



Body round and compressed; large ctenoid scales, two lateral 

 lines composed of scales of the same size as those above and below it; 

 jaws equal; mouth small; maxillaries not exposed and not extending 

 to the front edge of the eyes; operculum and checks scaly, but the 

 preoperculum scaleless and finely denticulated. Gill-rakers short, 

 about six on the lower anterior arch. Caudal slightly emarginate. 

 Ventrals behind the pectorals and in some cases extending beyond 

 the origin of the anal. Teeth small, conical, and arranged in two 

 rows in each jaw. P. 13; D. XV, 8 to 10; A. Ill, 7 or 8; depth 2.2; 

 head 3; nares indistinct and not greatly different from the pores on 

 the snout, situated about half-way between the eyes and the tip of 

 the snout; eyes 2.8 in the head, a little greater than the length of the 

 snout or the interorbital space; depth of preorbital three-fifths the 

 diameter of the eye; four series of scales on the cheeks; scales 4-24-9 



(in the first series below the lateral line) ; pores ; greatly 



8—10 



arched from the snout to base of the dorsal; the fourth dorsal spine 



much the longest and thirteen-sixteenths the length of the head; 



dorsal spines about subequal from the sixth to the last, none or them 



more than three-fifths the length of the head, the first two shortest. 



