189^.] NATURAL SCIENCES OF PHILADELPHIA. 335 



ENGRAULIDID^. 



24. Stolephorus tapirulus (Cope). 



EngrauUs tdpirulus Cope, Proc. Amer. Phil. Soc, May 4, 1877 (sepa- 

 rate, p. 29) [Pecasmayu bay?]. 



The two specimeu.s in the collection evidently belong to this 

 species. The brevity, of Cope's description, however, seems to 

 require a more extended one. 



D. 14, A. 23-24, depth 4i-, head 3^, eye 4-4^ in head, 5 in 

 snout, equal to interorbital. Body strongly compressed, outline 

 not strongly curved. Head very acute, top flat. Mouth very 

 oblique, giving head a triangular outline, the depth at occiput equal- 

 ling length. Maxillary very long, acutely truncate, extending 

 slightly past articulation of mandible and quadrate. Teeth very 

 small. Gill rakers long and slender, but shorter than eye. Dorsal 

 low, its origin nearer beginning of caudal than end of snout by 

 twice the diameter of eye. Its longest ray about two in head. 

 Pectoral If in head, not reaching ventrals by half diameter of 

 eye. Ventrals short, 3^ in head, extending slightly beyond per- 

 pendicular from origin of dorsal. Anal low, beginning slightly in 

 advance of vertical from end of dorsal base. Scales thin, about 

 37 in a series from pectoral to caudal. 



Color, silvery yellowish. Lateral band rather obscure, mediate. 

 Scales above fiQely sprinkled with black dots. Snout and top of 

 head peppered with dots. Occiput dark. Length 180 mm. 



This species is close to S. peraamis Steindachner, differing in the 

 smaller number of dorsal and anal fin rays, origin of anal, length 

 of pectoral, j^ositiou of lateral stripe and depth of head at occiput 

 (2 in head in S. peruanus'). 



Two specimens. 



Local name, Llanamarca. 



2 5. Stolephorus peruanus (Steiudachner). 



EngrauUs peruanus Stein., Ich. Beitra^e, viii, 60, 1878 [Callao]. 



2 6. EngrauUs nasus (Kner and Steindachner). 



E. uasus Kiier and Stein., Neiie Fische aus Mus. Godeffr., 33, fig. 17, 

 18(36 [Chinchas islands, Peru]. 



This species is certainly distinct from E. ringens, differing 

 in having a larger eye, greater depth and much longer premax- 

 illary. 



