070 PROCEEDINGS OF THE NATIONAL MUSEUM. 



depth less than length ; snout very deep, blunt, rounded, short, soft; 

 eyes oblono-, luroc. high, a littlo antorior, their length 3 in head (meas- 

 ured from .surrounding cartilages); hook on tip of head in front of 

 snout, depressible in sockets, and with its lower rounded extremity 

 beneath, ])eset with man}' sharp spines, directed backward; mouth 

 small, inferior, with thick lips; teeth of 10 laminte in upper jaw, form- 

 ing a serrate cutting edge in front, and posteriori}" broad, oblique, 

 molar-like teeth are found; in mandible, 16 lamina', forming a serrate 

 cutting edge in front, laminaj becoming broad posteriorly and with a 

 concave space in front at symphysis; no broad, posterior, molar-like 

 teeth on mandil)le, edges of jaws elevated and enameled; nostrils large, 

 close together, confluent with corners of mouth; space between eyes 

 narrow, less than their diameter. Gill-openings small, in front of and 

 below base of pectoral; isthmus ])road, with a fold of skin across. 



First dorsal arising directly behind head, armed with a long, curved, 

 compressed, pointed spine, much longer than tin, when depressed, 7 

 tmies length of pupil, triangular in cross section, keeled in front, with 

 a serrate edge, posterior edge, from its separation from the soft part 

 of fin, grooved in middle, and with each of edges finely serrate; first 

 dorsal is depressible in a deep groove; second dorsal long, even, of mii- 

 form height to base of upper caudal lobe; upper caudal lobe not so 

 high as second dorsal, shorter than lower lobe, sinking on fin anterior 

 to it; pectorals very long, broad at base, pointed, not reaching tips of 

 claspers; ventrals inserted behind tip of dorsal spine, broad, rounded, 

 about equal to length of head; lateral line running around e3^e above 

 and below, over the top of head, joined behind eyes and along sides 

 superiorly. 



Color in alcohol, brown above, white below, and washed with sil- 

 very; fins with their outer portions blackish. 



Total length, 2*Jg inches; without caudal filament, IH^ inches. 



This description is from a male taken in Sagami Bay. It ditlers 

 from two other specimens from the same locality, and from the original 

 type, in having the anal and caudal lobe below% confluent, and formuig 

 a single fin. 



This species is not rare in rather deep water along the coast of 

 fJapan. We have secured three specimens from Misaki, besides the 

 original type found by Mr. Otaki in the market of Tokyo. 



{(l)avTd(r/.ia^ ii vision.) 



SUPPLEMENTARY NOTE. 



In a recent letter (January, 1903) Dr. K. Kishinouye notes the dis- 

 coveiy of the East Indian shark, Stcyostoma tigrhium (Gmelin), on 

 the coast of Japan, near Tokyo. It belongs near the Ilemiscijlliidx, 

 being remai-kal)le for the very long tail, half the length. Body with 

 brown spots or bands. 



