FISHES OF WEST COAST OF PEKU. 3 



half that of soft dorsal; distance from insertion of first to second 

 dorsal, 3.81 in total length; height of second dorsal, 3.1 in head; 

 base 2.8 ; height of spine, 1.4 in that of fin, distal portion of fin trun- 

 cate; distance from insertion of second dorsal to tip of caudal, 2.T6 

 in total length ; caudal broad, a notch at tip, opposite last vertebra ; 

 pectoral very large, the broad truncate distal portion extending be- 

 yond vertical from insertion of first dorsal, pectoral longer than 

 head, 4.42 in total length; distance from tip of snout to insertion 

 of pectoral, 4.8 in total length; ventrals large, inserted slightly be- 

 hind the vertical from posterior base of first dorsal, length 1.8 

 in length of pectoral; distance from insertion of pectorals to inser- 

 tion of ventrals 3.64 in total length ; insertion of anal under vertical 

 from middle of free part of the backward prolongation of second 

 dorsal, its length 1.66 in head, its tip extending beyond the origin 

 of the caudal. Scales of the back and sides black and olivaceous, 

 the greater number of those on back black, giving the dorsal surface 

 a much darker coloring than sides ; belly light olivaceous ; body and 

 fins everywhere covered with numerous black spots of varying sizes, 

 their diameter less than horizontal diameter of eye; six indistinct 

 dark crossbands on back, the first above gill openings, the second in 

 front of dorsal, the third under posterior end of first dorsal, fourth 

 in front of origin of second dorsal, the fifth under second dorsal, 

 and the sixth on caudal peduncle in front of base of caudal; fins 

 similar in coloration to body. 



Color in life, " a dirty brown, blotched and spotted with black ; 

 ventral surface pale, but spotted with black." 



This species appears to be most closely related to the poorly 

 described G. quoyi^ but differs in coloration, in insertion of anal, 

 and relative size of pectoral. In G. frandsci. the dorsal is more 

 anterior in its insertion, the anterior gill-slit is shorter, and the 

 black spots are smaller. 



Family SCYLLIORHINIDAE. 



THE CAT SHARKS. 



Genus HALAELURUS Gill. 



2. HALAELURUS CHILENSIS (Guichenot). 

 PEJE-GATO. 



ScylUum chilense Guichenot in Gay, Hist. Chile, ZooL, vol. 2, 1848, p. 362. — 



GtJNTHER, Cat., Fish. Brit. Mus., vol. 8, 1870, p. 405. — Philippi, Ann. 



Univ. Chile, vol. 71, 1887, p. 556, pi. 7, fig. 4.— Vaillant, Miss. Scl. 



Cape Horn, Zool. Poiss., 1891, p. 10, pi. 1, figs. 1-2. 

 Scylliorhinus cMlensis Delfin (part), Cat. Peces de Chile, 1901, p. 15. 

 Scyliorhinus chilensis Regan, Synopsis Sharks Fam. Scyliorhinidae, Ann. 



Mag. Nat. Hist., ser. 8, vol. 1, 1908, p. 462. 



Two specimens, a female, field No. 09702, and a male, field No. 

 09710, respectively 50.7 and 65.7 cm. in length, from MoUendo. 



