1885.] PEOCEEDINGS OP UNITED STATES NATIONAL MtJSEUM. 125 



Name. 



Identification. 



* Moniana deliciosa • . . 



* Moniana proserpina* . 



* Moniana aurata* 



Moniana complanata 



t Moniana IsBtabilis''. . 



* Moniana pulcbella^. - 



*' Moniana frigida ^ . 



t Moniana couchi ' 



t Moniana lutila^ 



* Moniana nitida* 



t Moniana formosa^ 



* Moniana aracilis ^ . . . 



Notropis deliciosus, (Grd.). 

 Notropis proserpina, (Grd.). 

 Notropis proserpina, (Grd.). 

 Notropis leoninus, (Grd.). 

 Notropis lutrensis, (B. & G.). 

 Notropis lutrensis, (B. &■ G.). 

 Notropis leoninus, (Grd.). 

 Notropis lutrensis, (B. & G.). 

 Notropis lutrensis, (B. & G.). 

 Notropis nitidus, (Grd.). 

 Notropis formosus, (Grd.). 

 Notropis lutrensis, (B. & G.). 



^ Moniana deliciosa, Grd., seems to be identical with Hybopais nmsuriensis, Cope, 



Notropis stramineus, Cope, seems to be a variety of the same species, with the scales 

 slightly larger, on an average. Hyiopsis longiceps, Cope, and H. volucella, Cope, are but 

 slightly different, and are all probably varieties of N. deliciosus. 



^ One of the types of Moniana proserpina (117 S. I., Devil's River, Texas) is in the 

 museum of the Academy. 



Length 2 inches. Head :3| ; depth 4. D. 7., A. 7. Fourteen scales before dorsal. Scalea 

 6-35-3. Eye 4 in head ; snout blunt, 3J in head ; mouth subinferior, nearly horizontal; 

 upper on level of lower edge of orbit. Top of head rather convex, with a slight 

 median crest. Body rather robust; the ventral outline nearly straight ; the back 

 elevated. Color brownish above, rather silvery on sides and below, but with no 

 evident silvery lateral band. A blackish metallic band made up of dark punctula- 

 tions running from upper edge of preopercle to upper edge of base of caudal. 



This is identical with the type of Moniana auraia (118 S. I., from Piedrapainte, 

 N. Mex.). (Meek.) 



' The specimens of Moniana aurata are tuberculate males, apparently of the same 

 species as the types of Moniana proserpina. Compared with N. lutrensis, N. proserpina 

 has the mouth smaller and more inferior, the snout and head heavier and more obtuse, 

 and the body rather less deep. The males show a dusky humeral bar, as in M. 

 lutrensis, and a faint, dusky, horizontal stripe. 



* Moniana Iwtabilis {S. I., 120, Hurrah Creek, If inches long) seems to be indistin- 

 guishable from the young of iV^. lutrensis. Head 4 in length; depth 3f. Scales 6-35-3; 

 sixteen scales before dorsal. Eye3iiuhead. Mouth very oblique ; maxillary reaching 

 front of eye. (Meek). 



^Moniana pulchella, Grd., is unquestionably identical with N. lutrensis. We have 

 compared the types with those of the latter, and with the types of M. jugalis, Cope, 

 as well as with numerous specimens collected by Jordan & Gilbert in the streams 

 about Fort Smith. 



6 The types of Moniana frigida differ from JSf. lutrensis chiefly in the larger number 

 of scales (37) in the lateral line. The body is also rather more elongate than usual 

 in N. lutrensis. I think that leonina and complanata will be found to be identical with, 

 M. frigida, but I am unable to find the types of either. 



^ The types of Moniana couchi, rutila, and gracilis are all small fishes, mostly in poor- 

 condition. They are indistinguishable from the young of lutrensis. (Meek.) Speci- 

 mens of gracilis are also in the National Museum. They seem a little slenderer than 

 the average lutrensis, but probably all belong to that species. 



* Moniana nitida seems to be a valid species allied to Notropis deliciosus. A descrip^ 

 tion will be given elsewhere. 



^Moniana formosa (114 S. I., Rio Mimbres) seems to be distinct from all of the other 

 species. Head 3f ; depth 3^. D. 8. A. 8. Scales 7-43-4 ; 23 scales before dorsal. 



