136 



Annals of the Carnegie Museum. 



31. MoUienisia sphenops (Cuvier and Valenciennes). 

 PcEcilia sphenops Cuv. & Val., Hist. Nat. Poiss., XVIII, 1846, p. 130, pi. 526. 

 MoUienisia sphenops Regan, Proc. Zool. Soc. London, 1913, p. 1013, text-fig. 173F. 



6699 a-c, C. M.; 13617, I. U. M., six. 47-57 mm. Brackish water 



at Cartagena, Colombia. C. H. Eigenmann. 



In addition to these examples, the University of Michigan possesses 

 a few specimens from fresh waters at Santa Marta and the Rio 

 Manzanares near Santa Marta and Mamatoco, in the Santa Marta 

 Mountains of Colombia. 



32. MoUienisia caucana (Steindachner). 

 Girardinus caucanus Steindachner, Denkschr. K. K. Akad. Wiss. Wien. XLII, 

 1880, p. 87, pi. VI, figs. 4, 5 (Caceres, Colombia); Steindachner, ihid., LXXII, 

 1902, p. 146 (Baranquilla). 



5826 a, C. M. A single female 34 mm., Cienaga at Calamar, Colombia. 



Eigenmann. 



A male, 22 mm., from Fundacion is in the collection of the University 

 of Michigan. The tip of the anal fin of this specimen is shown in Fig. 

 16. 



D. 7-8; A. 9; P. 10; V. 6; 1. 1. .26-27. 



This species is very closely related to M. sphenops and seems to differ 

 chiefly in coloration. It has the basal half of the dorsal broadly 

 banded with intense black, thence a clear portion, which is again 



Fig. 16. MoUienisia caucana (Steindachner). Distal end of anal of male. X 

 Fundacion, Colombia. 



40 



margined with black. The base of the last rays of the anal in the 

 female is also covered by a black spot. There are faint indications 

 of a number of transverse lines on the sides. 



