NEW SPECIES OF FISHES FROM TROPICAL AMERICA r 



BY SETH EUGENE MEEK 



During the past year the Museum has received a few small col- 

 lections of fishes from Tropical America, among which the following 

 appear to be undescribed: 



Rhamdia nasuta sp. nov. 



Type No. 6480, F. M. N. H.; length, 125 mm.; Buenos Aires de 

 Terraba, Costa Rica. 



Head 3.65; depth 5.20; D. I, 6; A. n. 



Body elongate, moderately robust; top of head flat, interorbital 

 3 in head; occipital process short, about twice as long as broad at 

 base; upper jaw the longer; mouth moderate, its greatest breadth 

 2.40 in head; eye 5.20; snout 2.68; maxillary barbels nearly reach- 

 ing adipose fin; dorsal spine weak, its length 3.80 in head; pectoral 

 spine strong, its margins retrorse dentate, its length 2.70 in head; 

 fontanelle large, from between posterior nostrils to pupil; length of 

 tubes bearing anterior nostrils greater than diameter of pupil; adi- 

 pose fin well developed, its distance from dorsal 2.19 in head; length 

 of adipose fin 3.26 in body, height of adipose fin 5.70 in head; tip 

 of snout to dorsal spine 2.68 in body; least depth of caudal peduncle 

 2.38 in head; caudal fin deeply forked, its lobes pointed. 



Color olivaceous, sides with an obscure dark lateral band. 



One specimen, the type. Collected by Mr. M. A. Carriker. 



Astyanax regani sp. nov. 



Type No. 6257, F. M. N. H.; length, 130 mm.; Las Canas, Costa 

 Rica. 



Head 4. 66; depth 3. 33; D. n; A. 27; scales 8-39-6. 



Body elongate, heavy anteriorly, the head short and blunt; pre- 

 ventral area broadly rounded, without a median series of scales; 

 postventral area broadly rounded; predorsal area rounded, with a 

 partially complete series of ten median scales; occipital process 

 its distance from the dorsal, bordered by 3 scales on the side; inter- 



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