FISHES FROM MEXICO AND CENTRAL AMERICA. 
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10. Notropis santamari®, new species. 
Type, No. 50002, U. S. N. M., a specimen 1.56 inches long, collected in September, 1899, by Mr. 
E. W. Nelson, from a small pool near Lake Santa Maria, Chihuahua, Mexico. Cotype, No. 964, U. S. 
F. C. reserve series, from same place. 
Head 4; depth 2.65; eye 3.6; snout 4; maxillary 6; interorbital 6; scales 9-38-2, 13 pores; D. 8; A. 9. 
Body short, deep, and compressed; head short; snout short, obtuse; mouth rather small, oblique; jaws 
subequal, the lower slightly included; maxillary scarcely reaching eye; caudal peduncle moderate, 
its least depth 2.7 in head; scales large, loose, and closely imbricated, exposed portion of anterior ones 
deeper than long, 15 scales before origin of dorsal; lateral line greatly decurved and incomplete, only 
11 to 13 pores; fins all small; origin of dorsal over base of ventrals, the longest dorsal ray about 1.4 in 
head; anal rather larger than dorsal; pectoral short, pointed, 1.25 in head, not reaching base of ventrals; 
ventrals barely reaching origin of anal; teeth apparently 4-4, slightly hooked. 
Color in alcohol, olivaceous, paler below; back and upper part of side with numerous small dark 
specks, the edges of the scales dark; an obscure dark lateral band plainest on caudal peduncle; median 
line of back dark; top of head dark; snout somewhat dusky; dorsal and caudal dusky, other fins pale. 
This species seems related to N. frigidus, from which it differs in the larger scales and the incom- 
plete lateral line. 
11. Notropis term®, new species. 
Type, No. 50003, U. S. N. M., a specimen, 2.5 inches long, collected August 9, 1901, by Dr. J. N. 
Rose, in Lake Lerma, near the town of Lerma, State of Mexico, Mexico; cotypes, 32 specimens, No. 
50004, U. S. N. M. ; 10 specimens, No. 977, U. S. F. C. reserve, and 10 specimens, No. 6762, Stanford 
University Museum — all from the type locality and collected under the same circumstances. 
Head 3.7; depth 3.7; eye 5; snout 3.9; maxillary 3.3; mandible 3; interorbital 3; preorbital 6; D. 9; 
A. 8; scales 7-47-5, 23 scales before the dorsal; teeth 4-4. Body stout, deep, not greatly compressed, 
the back gently elevated, the anterior profile regularly curved from snout to origin of dorsal ; head rather 
heavy; snout short and rather blunt; mouth small, oblique, the lower jaw included, the maxillary 
scarcely reaching eye; teeth small, hooked, somewhat crenate, the grinding surface not well developed; 
