FISHES OF WEST COAST OF PERU. 11 



mm. 



Base of first dorsal 31 



Length of anterior margin of first dorsal 31 



Distance from origin of first dorsal to origin of second dorsal 118 



Length of anterior margin of second dorsal 17 



Distance from origin of second dorsal to base of caudal 60 



Length of upper caudal lobe 91 



Distance from tip of snout to base of pectorals 82 



Length of anterior margin of pectorals 54 



Breadth of distal margin of pectorals 40 



Distance fi'om base of pectorals to base of ventrals 110 



Distance from base of ventrals to base of anal 62 



Base of anal 18 



Distance from insertion of anal to base of caudal 47 



Distance from insertion of caudal to notch 56 



Length of anterior margin of lower caudal lobe 42 



Body slender ; snout long, depressed ; eye large ; spiracle moderate ; 

 each tooth with a strong, sharp cusp directed backward, below and 

 behind this are 1 to 4 smaller cusps or serrations, those at symphysis 

 of jaw slightly smaller, several of the teeth tricuspid as in Triakis; 

 mouth rounded at tip ; nostrils nearer mouth than tip of snout. Fins 

 small; second dorsal much smaller than the first, caudal long, 4.45 

 in total length; anterior part of lower caudal lobe elongate; anal 

 smaller than second dorsal ; ventrals small ; pectoral elongate. 



Color in alcohol, back and sides, dorsals and upper surface of 

 pectorals, blackish, belly grayish silvery. 



These individuals from Peru agree very well with the type of 

 this species with which we have compared them. 



Family SQUATINIDAE. 



THE ANGEL SHARKS. 



Genus SQUATINA DumerU. 



9. SQUATINA SQUATINA (Linnaeus). 



ANGELOTA. 



Squalus squatina Linnaeus, Syst. Nat., ed, 10, 1758, p. 233; Coast of 



Europe. 

 Squatina caUfornica Aybes, Proc. California Acad. Sci., 1859, p. 29; San 



Francisco. 

 Rhirui squntlnn Gunther, Cat. Fish. Brit. Mus., vol. 8, 1870, p. 430. 

 Squatina squatina Jordan and Evermann, Fishes North and Mid. Amer., 



vol. 2, 1896, p. 58. 



One specimen, a male, field No. 09517, 56 cm. long, from Lobos de 

 Tierra. 



Following are the measurements of this specimen : 



mm. 

 Total length 560 



Tip of snout to base of pectoral 126 



Tip of snout to origin of ventrals ^ 212 



