144 BULLETIN 95^ UNITED STATES NATIONAL MUSEUM. 



172. LEPISOMA PHILIPPI (Steindachner). 

 TEAMBOLLO; CHALAPO. 

 Plate 13, fig. 1. 



Olinus philippi Steindachner, Ichth. Notizen, III, Sitz. Akad. Wiss. Wien, 

 vol. 53, 1866, p. 210; West Coast of South America. 



Clinus fortidentatus Cope, Proc. Amer. Philos. Soc, 1877, p. 42 ; Callao, 

 Peru. 



Labrisomtis philippi Abbott, Marine Fishes of Peru, Proc. Acad. Nat. Sci. 

 Phila., 1899, p. 361.— Delfin, Cat. Peces de Chile, 1901, p. 94.— Starks, 

 Fishes from Ecuador and Peru, Proc. U. S. Nat. Mus., vol. 30, 1906, 

 p. 800; Callao. 



Three specimens, field Nos. 09121, 09124, and 09126, respectively 

 26.5, 22, and 17 cm. in length, from Callao, Lima market, and fish 

 hucksters; two, field Nos. 474 and 475 (=09719), respectively 24.5 

 and 29 cm. in length, from Ballestas Island, region of Pisco, taken 

 with a trammel net (trasmalla) in 1-3 fathoms; one, field No. 09594, 

 22.2 cm. in length from Chincha Island; and one, field No. 09638, 

 11.2 cm. in length, from Independencia Bay, Isle Vieja, Santa Rosa 

 Island, east side. The common name for this species in this locality 

 is " Chalapo," probably a corruption of " Chalaco " ; one specimen, 

 field No. 09668, 31.5 cm. in length from Chimbote, taken in a trap in 

 water 2J fathoms, near shore. 



Head 2.85 to 3.15 in length; depth 3.05 to 3.6; eye 4.8 to 5.6 in 

 head; snout 2.5 to 3.3; maxillarj^ 2 to 2.75; interorbital 5.3 to 6.9; 

 pectoral 1.25 to 1.45; D. XIX, 12 or 13; A. II, 19 or 20; scales 

 (pores) 70-73. 



Body compressed, tapering; head in the adult very robust, its 

 breadth ranging from about 2.2 in head in specimen 11 cm. in 

 length to 1.3 in specimens 30 cm. in length ; snout, in the adult, blunt, 

 maxillary reaching to vertical from posterior border of pupil ; teeth 

 essentially as in L. xanti except that those on the vomer and palate 

 are in well-developed patches, and with the exception of the Chim- 

 bote specimen, the northernmost example in our collection, the teeth 

 are of much more uniform size without unusually large teeth scat- 

 tered among the smaller ones. In the example from Chimbote, the 

 teeth approach closely the condition found in L. xanti. Inter- 

 orbital rounded; nostrils small, the anterior with a multifid dermal 

 flap, other similar dermal flaps over eye and on nape, the latter well 

 developed; gillrakers short, 3+7; origin of dorsal over posterior 

 margin of preopercle, spinous dorsal considerably lower than soft 

 portion ; caudal nearly truncate ; membranes of anal deeply incised ; 

 ventrals moderate, about 2 in head. 



