118 BULLETIN 95, UNITED STATES NATIONAL MUSEUM. 



duced into filaments, fin deeply forked; ventrals moderate, in some 

 specimens with the first ray filiform; pectoral long and angulated, 

 equal to or greater than length of head. 



Color in life: Olivaceous above; below bluish silvery, and very ob- 

 scurely striped; a pale spot (gold when first taken) on back at poste- 

 rior limit of dorsal, the spots of the two sides confluent posteriorly 

 behind dorsal ; a broad black stripe extending from insertion of each 

 lobe of caudal to its slender tip; just above dorsal stripe and just 

 below ventral stripe the fin is very narrowly margined with pink; 

 between the stripes the fin is olivaceous proximally and pink poste- 

 riori}^ ; dorsal almost black, a small part including last two to four 

 rays olivaceous proximally and reddish distally; distal half of anal 

 light olive, pectoral reddish at base, insertion black. 



This species occurs from Cape San Lucas southward to Lobos de 

 Afuera, Peru. It is reported to be very abundant about the islands 

 in Panama Bay ; not recorded from the Galapagos Islands. 



146. CHROMIS CRUSMA (Cuvier and Valenciennes). 

 CHAVELITA; JUNICHE; CONGUYO. 



Heliases crusma Cuvier and Valenciennes, Hist. Nat. Poiss., vol. 9, 1833. 

 p. 377 (510), (part) ; Valparaiso, Chile (specimen from Juan Fernandez 

 Island not this species. — Jenyns, Zool. A'oy. Beagle, 1S42, p. 54. — Gay, 

 Hist. Chile, Zool., vol. 2, 1848, p. 206 (part), I, Atlas Zool. Ictiol., 1854, 

 pi. 4, fig. 1. — Valenciennes, Poiss. R§gne Anim. de Cuv., 1850, pi. 33, 

 fig. 2. 



Heliastes crusma GtJNTHER, Cat. Fish Brit. Mus., vol. 4, 1862, p. 61. — Stein- 

 DACHNEB, Fauna Chilensis, vol. 4, 1898, p. 317. 



Chromis crusma Abbott, Marine Fishes of Peru, Proc. Acad. Nat. Sci. Phila., 

 1899. p. 358,— Delfin, Cat, Peces de Chile, 1901, p, 76,— Staeks, Fishes 

 from Ecuador and Peru, Proc. U. S, Nat, Mus., vol, 30, 1906, p. 798. 



Two specimens, field ISTos. 508 and 515, respectively 17.5 and 14 cm. 

 long, from Mollendo; one, field No. 09144. 15.1 cm. long from Callao; 

 and seven, field No. 09627, 4.2 to 13 cm. long from Independencia 

 Bay, Santa Rosa Island, east side. 



Head 2.95 in length; depth 2.03; eye 3.66 in head; snout 4; in- 

 terorbital 3.1; scales 3^-27-10, 20 pores; D. XIII, 12; A. II, 12; 

 P. 20. 



Body short, deep ovate and rather thick, the dorsal outline slightly 

 more convex than the ventral ; snout short and abruptly conic, shorter 

 than eye; interorbital rounded; opercle, preopercle and suborbital en- 

 tire; preopercular margin varying considerably, in some specimens 

 the free sides nearly straight, closely approaching a right angle, in 

 others the vertical portion strongly concave; opercle ending in two 

 small flat spines, the upper obscure; teeth conic, in three or four rows 

 jn each jaw, the outer series enlarged, close-set; third dorsal spine 



