RHINA JAPONICA. 255 



Rhina australis. 



Rhina squatina McCoy, 1879, Zool. Vict., 4, pi. 34; Macleay, 1881, Proc. Linn, soc, N. S. Wales, 6, 



p. 368; Johnston, 1883, Proc. Roy. soc. Tasmania, p. 139. 

 Squatina squatina Waite, 1899, Mem. Austr. mus., 4, p. 37. 

 Squatina australis Regan, 1906, Ann. mag. nat. hist., ser. 7, 18, p. 438. 



Nasal valves and cirri fringed. Fold at the side of the head lobed behind 

 the nostril, not as wide opposite the angle of the mouth, narrow posteriorly. 

 Spiracles farther apart than the eyes. Teeth of a ten inch specimen in fi rows; 

 no teeth on the symphysis. Outer margin of the pectoral meeting a line across 

 the hind margin at much more than a right angle, posterior border concave, 

 inner angle prominent, inner edge broadly curved., Forward margin of ventrals 

 convex, outer sinuous. Dorsals equal, subtruncate, hind margins convex. 

 Posterior margin of supracaudal sigmoid, very oblique; subcaudal longer, narrow, 

 obliquely truncate. Postorbital process in contact with the top of the skull in 

 front of the suborbital process of the pterygoquadrate, foramen complete. Scales 

 subconical at the apex, carinate toward the base; commonly with two keels in 

 front, in cases three, and one or more behind these at each side. 



"Color : above sandy-brownish lilac, the ground color being darker, minutely 

 mottled with very numerous, small, lighter spots, the spots on the fins and eyes 

 being darker; pinkish- white below" (McCoy). 



Off the coast of Victoria, Australia, the species reaches a length of five feet. 



Rhina japonica. 



Squatina vulgaris Muller & Henle, 1841, Plagios., pi. 35 (snout): Schlegel, 1850, Jap. Pisces, p. 305, 



pi. 136. 

 Squatina ja-ponica Bleeker, 1857, Act. Soc. sci. Ind. Neerl., 3, p. 40; Jord. & Fowler, 1903, Proc. U. S. 



nat. mus., 26, p. 641. 

 Rhina squatina Ishikawa & Matsuura, 1897, Cat. fishes, p. 61. 



Nasal valves fringed; inner cirrus slender, simple, outer stronger lobed and 

 fringed. Spiracles farther apart than the eyes. Fold at the side of the head 

 with an elongate rounded expansion opposite the corner of the mouth, narrower 

 opposite the angle of the jaws. Teeth of a seventeen inch specimen in 50 rows, 

 no teeth on the symphysis. Another individual, one of four, has a distinct row 

 of teeth on the middle of the symphysis. Postorbital foramen completely en- 

 closed. Outer border of the pectoral slightly convex, meeting a line across 

 the hind border at more than a right angle, inner margin broadly curved, inner 

 angle broadly rounded, outer angle blunted. Anterior margin of the ventrals 



