90 Proceedings of the Biological Society of Washington. 



description of its color markings and general appearance as described by 

 .those who saw it, I am assured was this species. This form has not here- 

 tofore been recorded on the North Carohna coast. 



4. Carcharhinus acronotus (Poey). 



SHARP-BACKED SHARK. 



The first record of this rare shark for the coast of the United States was 

 a specimen, three feet long, taken by me in the bight of Cape Lookout in 

 July, 1911. Daring July, 1914, I captured six specimens in the bight of 

 Cape Lookout. 



5. Carcharhinus lamia (Rafinesque). 



CUB-SHARK. 



Of this shark I have secured three specimens, one each for the years 

 1902, 1906, and 1913. These are the only records for this species on the 

 North Carolina coast. The one taken in 1902 was originally identified as 

 C milberti. 



6. Carcharhinus limbatus (Miiller & Henle). 



In July, 1910, 1 had the good fortune to add this shark to the fauna of 

 North Carolina. 



7. Hypoprion brevirostris Poey. 



This shark, which had first been recorded in this field by Mr. Lewis 

 Radcliffe in 1912, was first seen by the writer during the latter part of 

 July, 1913. I succeeded in capturing two examples on Lookout Shoals, 

 one containing early embryos. 



8. Scoliodon terrse-novae (Richardson). 



SHARP-NOSED SHARK. 



With the exception of a short period during the winter and spring, this 

 small shark is very abundant in this region. 



9. Sphyrna tiburo (Linnjeus). 



BONNET-NOSED SHARK. 



This shark is fairly abundant from June first to October, but not so 

 common as the hammer-head. 



10. Sphyrna zygeena (Linnaeus). 



HAMMER-HEADED SHARK; HAMMER-HEAD. 



Contrary to the opinion of former writers, this is one of the most abund- 

 ant sharks in this region during the summer months. On one occasion I 

 hauled to the beach in a large seine, sixty-five specimens of this shark, 

 averaging about four feet in length. In 1910 I captured a female which 

 was 143^ feet in length. After capture this fish gave birth to five young 



