DESCRIPTIONS OF TWO NEW SPECIES OF SQUALOID 

 SHARKS FROM JAPAN! 



B}^ David Starr Jordan ^ and. John Otterbein Snyder, 



Of the Lekmd Stanford Jiaiior Univcrxili/. 



In the present paper is ^iven a description of two new species of 

 sharks from the deeper waters of the east coast of Hondo, the main 

 island of Japan. Both species belong- to the famih' of Squalidi^. 



I. ETMOPTERUS LUCIFER Jordan and Snyder, new species. 



Head about 4f in length; depth about 7; snout about 2| in head; 

 eye o| in head; 2 in snout, 2/t in the width of snout, and 2^^ in the 

 space from the tip of the snout to mouth; space between spiracles 2i 

 in the width of snout. 



Fig. 1.— ETMOPTERUS Lucifer, a, upper jaw; 6, lower jaw. 



Bod}' moderatel}' elongate, rather robust, and with slender caudal 

 peduncle; scales rough, small, forming- longitudinal stri^ above, 

 abruptly and sharpl}^ separated on the sides from the lower surface, 

 which is evenl}' rough with tine shagreen. 



Head large, thick, rather short; snout rather short, thick, more 

 convex below than above, and also with man}- pores; eyes moderate, 

 lateral, and with anterior margin midway between the tip of the snout 

 and the spiracle; skin about the eyes more or less loose and free, and 

 the upper eyelid overlapping and forming a pit in front; nostrils very 

 large and lateral; mouth opening below the posterior portion of the 



^Assisted by Henry W. Fowler. 

 Proceedings U, S. National Museum, Vol. XXIV— No. 1279. 



