PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 581 



Especial acknowledgments are due to Mr. Charles C. Leslie for aid 

 of various kinds rendered Mr. Gilbert while in Charleston. It was only 

 through his co-oj^eration that the present collection was made possible. 

 Dr. G. E. Manigault kindly gave free access to the collections in the 

 museum of Charleston College, and also presented several interesting 

 specimens. 



1. Ginglymostoma cirratum (Gmel.) Miiller aud Henle. 



A stuffed skin of this species, about 5 feet long, is in the Charleston 

 Museum. 



2. Mustelus canis (Mitch.) De Kay. 



A single specimen seen ; probably not common. 



3. ScoUodon terraenovae (Rich.) Gill. 

 Very abundant in the harbor. 



4. Sphyrna tiburo (Linn.) Raf. — Sho^Jel-head Shark. 



Probably the most abundant shark in Charleston Harbor. It is 

 skinned and eaten by the negroes. 



5. Sphyrna zygaena (Liim.) Raf. 



No si)ecimens obtained. A large skin of this species is in the Charles- 

 ton Museum. 



6. Odontaspis littoralis (Mitch.) J. & G. 



A stuffed skin is in the Charleston Museum. A large pair of jaws 

 was also obtained from Mr. Leslie. 



7. Hypoprion brevirostris Poey. 



Body robust, its greatest height equaling the greatest breadth of the 

 very depressed, flattened head; snout short, tlal, broadly rounded ante- 

 riorly, the greatest height before mouth equaling distance from tip of 

 snout to nostril; nostril midway between tip of snout aud posterior 

 edge of pupil; distance from snout to front of eye tw^o-thirds the broad 

 interorbital space; preoral portion of snout about one-half intei orbital 

 width; flap of anterior nostril very short, ending in an acute angle; 

 width of mouth equaling distance from tip of snout to posterior margin 

 of orbit, and slightly less than twice distance from tip of lower jaw to 

 line connecting angles of mouth; angle of mouth with a short, deep, 

 fold, half diameter of orbit, extending on upper lip only. 



Teeth, ff ; those in upper jaw from a broadly triangular base, which 

 is distinctly though minutely serrulate on outer side only; above the 

 base the cusp is abruptly constricted, narrowly triangular, with entire 

 edges, the point turned but little towards the side. Teeth in lower jaw 

 much narrower and shorter than those in the upper, erect, with base 

 and edges of cusp entire. 



Eye small, its diameter about one-flfth interorbital width. 



