|[o.l324. ELASMOBRANCHIATE FISHES— JORDAN AND FOWLER. (i45 



ivith whitish, or light gray; iris golden; adult of a dull gray above 

 ,nd lighter on abdomen. (Day). 



East Indies, north to Japan; seen by Jordan and Snydcu- at Ononiicrhi, 

 Jiroshima, Tsuruga, and Hakata. 

 j A large ray, measuring 4 feet. 



I We have half of the head and a poi'tion of the disk of a large cxam- 

 i)le from Tsuruga. There is a small black spot on each side of the 

 |noiit at tip; two blackish spots over the eye, and another at base of 

 )ectoral, with a couple of light spots near it. 

 : (Named for Djidda in Arabia.) 



85. RHINQBATUS Bloch and Schneider. 



A'/a«o6f//«.s> Bloch and Schneider, Kyst. Ichth., 1801, p. 353 {rhinobalus) . 

 Lciobatus Rafinesque, Caratteri Alcuni Generi, 1810, p. 16 {panduraius) . 

 Syrrhma Muller and Henle, Plawiostomen, 1838, p. 113 {colnm)iw). 

 ( llaucoslerjm Bonaparte, Catologo Metodico, 1846, p. 14 (rhinobaina) . 



Body depressed, gradually passing into the tail. Cranial cartillage 

 )roduced into a long rostral process, the space between the process and 

 he pectoral tin being tilled ])y membrane; spiracles wide, behind the 

 ?ye; nostrils oblique, wide; anterior valves not confluent; teeth obtuse, 

 vith an indistinct, transverse ridge. Dorsal tins without spine; both 

 "ar behind the ventral tins; caudal tin without lower lobe. Claspers 

 slender and pointed. Species numerous in warm seas, var3ang con- 

 'dderably as to the form of the snout; those with the snout shortened 

 md the nasal valves broader, constituting the subgenus LeioJxitus^ 

 [Syrrhwa), to which the Japanese species belong. 



{pivr/^ a shark; ^drog^ a skate.) 



(. Leiobatus. Anterior nasal valve continued toward median line. 

 6. Anterior nasal valve slightly continued toward median line by a short fold, far 

 from meeting its fellow of other side; snout produced; dorsal tubercles obso- 

 lete; color uniform brown; young with brown spots sddeijeli, 37. 



bh. Anterior nasal valve continued toward median line, nearly meeting its fellow 

 of other side; snout moderately produced; back with a median series of very 

 small tubercles; back with dark rings pulijophthalmus, 38. 



37. RHINOBATUS SCHLEGEL Muller and Henle. 

 SAKATAZAME (SKATE-SHARK). 



Rhinohntus schlegeli MIjller and Henle, Plagiostomen, 1838, p. 123, pi. xlii; 

 Nagasaki. — Schlegel, Fauna Japonica, 1850, p. 207; Nagasaki. — Richard- 

 son, Ichth., China, 1846, p. 95; Nagasaki. — Bleeker, Act. Sci. Xeerl., Ill, 

 1857, Japan, p. 41.— Gunther, Cat. Fish, VIII, 1870, p. 445; Japan, For- 

 mosa.— Dumeril, Elasmobranches, 1870, p. 497. — Ishikawa, Prel. Cat., 

 1897, p. 30; Boshu.— Steindachner, Reise Aurora, 1898, p. 225; Kobe. — 

 Jordan and Snyder, Proc. U. S. Nat. Mus., 1900, p. 337; Tokyo. 



Tip of snout to spiracle 4f in length; width of disk 3| in body; space 

 aetween spiracles 4^ in space between tip of snout and spiracle; inter- 



