22 NEW YORK STATE MUSEUM 



Hundredth* 

 MEASUREMENTS Millimeter-? of length 



Length of upper lobe 98 



Greatest width of upper lobe 117 



Distance of lower lobe from <anal base 91 



Length of anterior margin of lower lobe 228 



Length of longest margin of lower lobe 345 



Pectoral 



Distance from snout ........................ 590 20 



Greatest length ................... .'.. ........ 330 11.2 



Width of base .............................. 169 5.7 



Greatest width .............................. 240 8 



Ventral 



Distance from snout ......................... 1655 56 



Greatest length ............................. 215 7.3 



Length of posterior margin (last ray) ......... 108 .......... 



iWidth of base ............................... 170 5 . 7 



Greatest width .............................. 222 7.5 



Only two specimens of this shark have been recorded the 

 type described by Capello from the coast of Portugal, and an 

 example about 9 feet, 8 inches long which came ashore in ex- 

 cellent condition at the Amagansett life-saving station on Long 

 Island, Feb. 8, 1883. The latter specimen was forwarded to the 

 U. S. National Museum, Washington D. 0. 



A figure of the species is published in Oceanic Ichthyology, pi. 5,. 

 fig. 17. 



Famil 



Requiem Sharks 

 Genus MUSTELUS Cuvier 



Body slender, elongate; mouth small, crescent-shaped, with 

 well developed labial folds at the angles, snout rather long and 

 depressed; teeth in both jaws very blunt, small, rhombic, many- 

 rowed, arranged like pavement; spiracles small, just behind the 

 eyes; eye large, oblong; pectorals large; ventrals well de- 

 veloped; first dorsal large, no ; t far behind pectorals, somewhat 

 larger than second dorsal; anal opposite to and smaller than 

 second dorsal; basal lobe of caudal little developed, the tail 

 nearly straight; embryo without placental attachment to the 

 uterus. 



