PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 387 



jectiug and pointed ; tlie pectorals broadly expanded on eacli side, leav- 

 ing a marked concavitj' in the outline of the body along their anterior 

 margins on each side, in front of which is a convexity whicli terminates 

 in the mucronate snout. 



Mouth small; teeth triangular, rather pointed; nostrils well apai't, 

 confluent with the mouth; a broad flap behind and between them, which 

 seems to form an upjjer lip. 



Color brownish olive, beautifully marbled with grayish, and marked 

 with roundish stellate spots and flner markings of dark brown ; edge of 

 disk with rounded pale spots, forming semicircles on the border; tail 

 with foiu" dark blotches above, forming half-rings. 



TORPEDINIDiE. 

 Genus TOEPEDO Dumeril. 



112. Torpedo occidentalis Storer, 



Eecorded as rare, by Dr. Yarrow, on the authority of fishermen. 



RAIID^. 

 Genus EAIA Linnaeus. 



113. Raia laevis Mitch. 



Eecorded by Dr. Yarrow as common. 



CARCHAEIID^. 

 Genus OAECHAEIAS Eafinesque. 



(Odontasjj'is Agassi'/,; Eurjomphodus Gill.) 



114. Carcharias americanus (Mitch.) Jor. & Gilb. 



{EHgmnphodus Uttoralix Gill, op. cit.) 



One pair of jaws seen. The name Carcharias has priority over Odonf- 

 'fispis, as Dr. Gill has shown, and our species seems hardly generically 

 distinct from the European. 



SPHYUNID^. 

 Genus SPHYEXA Eafinesque. 



115. Sphyina zygaena (Linn.) Miill. tfc Ilenle. 



A single specimen recorded b.y Dr. Yarrow. 



Genus EENICEPS Gill. 



116. Reniceps tiburo (Linn.) Gill. — Shovel-hcadcd Shark ; Bonnet head^ 



Abundant. 



