240 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



each angle, upper fold half jaw length and lower shorter ; teeth in 33 

 rows above, 30 below, upper little narrower, cusp triangular, roof 

 shaped in cross section, erect near middle of mouth, more oblique 

 laterally; lower teeth much inclined toward mouth angles, cutting 

 edge nearly horizontal, deep notch on outer edge; nostrils slightly 

 nearer snout tip than eye, internarial 3% in preoral length, narrow 

 valves with short angular lobe across middle of nostril and another 

 smaller one short space farther inward ; preoral length 1% in head ; 

 interorbital 2l^, low. Gill openings subequal, about !% of eye, before 

 pectoral. 



Scales pedicellate, with radiate base and 3 sharp, slender cusps at 

 summit, each bearing keel on its outer side, fourth erect cusp fre- 

 quently above peduncle. 



First dorsal origin little nearer ventral origin than spiracle, fin 

 length slightly less than head, fin height about l^ fin length; second 

 dorsal begins behind ventral base, fin length 1% in head, little higher 

 than first dorsal; caudal equals head to third gill opening or 3I/2 in 

 rest of body, subcaudal 2% in caudal ; least depth of caudal peduncle 

 514 in head ; pectoral 1% in head to first gill openfng, width 1% its 

 length which reaches 1% to first dorsal origin; ventral length 2i/'io 

 in head. 



Dark brown, little lighter below. Inside mouth, gill openings, nos- 

 trils and fin edges blackish. Length, 922 mm. (Garman.) 



DEANIA EGLANTINA Jordan and Snyder 



Deania eglanUna Jordan and Snyder, Proc. U. S. Nat. Mus., vol. 25, p. 80, fig. 



2, 1902 (type locality: Totomi Bay, off Numazu). — Jordan and Fowleb, 



Proc. U. S. Nat. Mus., vol. 26, p. 632, fig. 4, 1903 (type). 

 Acwnthidium eglanUna Garman, Mem. Mus. Comp. Zool., vol. 36, p. 221, 1913 



(copied).— FowLEE, Proc. 4th (1929) Pacific Sci. Congr., Java, p. 496, 



1930 (type). 

 Acanthidium eglantmum Pietschmann, Sitz. Ber. Akad. Wiss. Wien, math.-nat. 



Kl., vol. 117, pt. 1, p. 158, 1908 (Japan). 

 Centrophorus calceus (not Lowe) Regan, Ann. Mag. Nat. Hist, ser. 8, vol. 2, 



p. 51, 1908 (Japanese specimen). 



Depth 8 to subcaudal origin; head 3, snout 2 in head; eye 3%, 21^ 

 in snout, 2 in interorbital; mouth below hind part of eye, rather 

 broad; lips moderately fleshy; teeth small, compressed, with small 

 basal cusp; preoral length 1% in head; nostrils about midway be- 

 tween snout tip and eye. Gill openings all before pectoral, first 

 1/2 of eye. 



Scales each with short bristlelike spines or 2 small prickles on each 

 side, rather velvety to touch. 



First dorsal with very short tip of spine exposed, origin about 

 midway between middle of snout and subcaudal origin, fin length 

 about 2 in head ; second dorsal origin midway between hind edge of 



