420 SYNOFSIS. 



Sp. 237. R. latis. The Skate. Snout sharp and conical ; the 

 outline from the point of the snout to the widest part of 

 the body nearly straight or very slightly concave ; the out- 

 line beyond that a little ceovex, approaching to rounded ; 

 no spines in front of the eyes ; upper side of the body 

 rough and granulated, the colour dusky brown tinged with 

 ash-colour, and the anterior margin of the pectoral tinted 

 with reddish brown ; under side grey, with mucous pores 



resembling blue specks Linn., Penn. Brit. ZooL, iii. 



p. 11 1 ; Yarr. Brit. Fish., ii. 561. 



Sp. 238. R. marginata. Bordered Ray. Snout moderately 

 elongated, the lateral margins nearly parallel at the tip : 

 skin smooth ; tail with three rows of spines ; colour of the 

 surface reddish-brown with obsolete faint spots, beneath 

 white with a broad dusky border ; tail black. Lacepede; 

 Flem.Brit. An., 171 ; Jenyns* Brit. Vert., p. 512 ; Yarr. 

 Brit. Fish., ii. 564. 



Sp. 239. R. microcellata. Small-eyed Ray. Snout short and 

 rather obtuse ; eyes remarkably small ; skin on the upper 

 ide rough with minute spines ; tail with one row of spines 

 continued along the dorsal ridge to the head ; colour of 

 the surface light grey, with two or three white lines run- 

 ning anteriorly parallel with the margin and posteriorly 

 arched inwards, a few whitish spots on the disc ; under 

 side smooth and white. Mont. Mem. Wern. Soc. ii. 430 ; 

 Flem. Brit. An., p. 171; Jenyns* Brit. Vert., p. 515; 

 Yarr. Brit. Fish., ii. 567. 



Sp. 240. R. miraletus. Homelyn Ray. Snout short and 

 obtuse ; diameter of the body about one-fourth greater 

 than its length ; eyes and temporal orifices large ; skin 

 smooth ; tail generally with three rows of spines, the cen- 

 tral one running along the back ; surface pale yellow or 

 reddish brown, spotted with dark brown ; under side uni- 

 form white. Linn., BlainvilU; Yarr. Biit. Fish., ii. .o7i>. 

 P. maculata, Mont. Mem. Wem. Soc., ii. 426 ; Jen-i/ns* 

 Brit. V&'t., p. 514. R. oculata, Fkm. Brit. An., p. 172. 



Sp. 241. JR. tyinosa. Sandy Ray. Snout a little prominent ; 



