ifo.1324. ELA8M0BRANCHIATE FISHES— JORDAN AND FOWLER. 641 



, {squatina^ the ancient name, akin to the English words "skate" 

 and "squat.") 



34. SQUATINA JAPONICA Bleeker. 



TEGAIZAME (CAN0PY-8HARK) ; KASUZAME (CHAFF RHARK); 



KOROZAME. 



Squnlina vulgaris 8chlegel, Fauna Japoiiica, Poiss., ]sr)0, p. 305, pL cxxxvi; 



Naga.saki (not of Risso). 

 Squatina japonica Bleeker, Act. Soc. Sci. Indo. NeerL, 1857, III, Japan, IV, p. 



40; Nagasaki. 

 Rhina squatina Ishikawa, Prel. Cat., 1S97, p. 61, Tokyo (not of Linnaeus). 



Head 5 in length; space between spiracles 1^ in head; interori)ital 

 space, 2i; eye 3f in interorbital space. 



Body broad, flattened, width of disk equal to one and five-eighths 

 total length. Head very broad, flattened, its length a trifle more 

 than two-thirds its width; snout very broad, short, obtuse, projecting 

 very slightly beyond mandible; eyes small, a little closer together 

 than spiracles, directed upward; snout well separated from mouth 

 below b}^ a deep furrow; jaws with about three rows of sharp, pointed 

 teeth, upper projecting slightly bej^ond mandible; lips rather broad, a 

 flap at the corner of mouth; inferior margin of head with a narrow, 

 thin flap; nostrils closer together than eyes, on edge of snout in front; 

 interorbital space broad, concave, this concavity extending to poste- 

 rior part of head. Spiracles less than ej^e, and about diameter of 

 latter distant. Gill-openings very large, septa with broad dermal 

 lamina? crowded together before base of pectoral. 



Above rough, especially along edges of dorsal and caudal; down 

 middle of back a series of small, sharp tubercles; a number of small 

 tubercles over eye between nostrils al)ove; lower surface of Ijody per- 

 fectly smooth, with exception of anterior ])orders of pectorals and 

 ventrals and lower surface of tail. 



Dorsals small, of about equal size, first just behind tips of ventrals, 

 second a])out midway between origin of first and origin of upper 

 caudal lobe. Pectorals with length of base about one-half of length 

 of anterior margin, the latter not equal to breadth of head; ventrals 

 from their origin to tip behind, shorter than anterior edge of pectoral; 

 caudal about half head; tail broad at first, then tapering, its width in 

 front not equal to space between outer edges of spiracles. 



Color in alcohol gray-brown above, marked with very luuiierous, 

 small, dark spots, so that lighter color between forms a reticulated 

 network; toward edges of fins spots ])ocome smaller and crowded; 

 dorsals and caudal with a few, indistinct, dark spots; lower surface of 

 body creamy; outer edges of pectorals, deep gray-])rown, blackish 

 posteriorly, also some blown spots about liases of former, on breast, 

 throat, a large blotch before the vent, and two streaks down tail. 



