PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 887 



jecting and pointed ; the pectorals broadly expanded on each side, leav- 

 ing a marked concavity in the outline of the body along their anterior 

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

 in the mucronate snout. 



Mouth small; teeth triangular, rather pointed; nostrils well apart, 

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

 seems to form an upper li}). 



Color browmish olive, beautifully marbled with grayish, and marked 

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

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

 with four dark blotches above, forming half-rings. 



TORPEDINID^. 

 Genus TOEPEDO Dumeril. 



112. Torpedo occidentalis Storer. 



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



RAIIDJE. 



Genus EAIA Linnaeus. 



113. Raia laevis Mitcli. 



Eecorded by Dr. Yarrow as common. 



CARCHARIID^. 

 Genus CAECHAEIAS Eafinesque. 



(Odoniaspis AgRSsiz; Euyompliodus Gill.) 



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



{EiKjomx^liodus Jtttoralis Gill, op. cit.) 



One pair of jaws seen. The name Carcharias has i^riority over Odont- 

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

 distinct from the European. 



SPHYRNID^. 

 Genus SPHYENA Eafinesque. 



115. Sphyrna zygaena (Linn.) Miill. & Henle. 



A single specimen recorded by Dr. Yarrow. 



Genus EENICEPS GiU. 



.116. Reniceps tiburo (Liuu.) Gill. — Shovel-headed Shark ; Bonnet-head. 

 Abundant. 



