3. nniNOBATus. 447 



a median series of very small tubercles. Youug examples with a 

 white snout. 



Mediterranean ; Atlantic ; Indian Ocean. 



(/. Fenuile: stuffed, 40 inches long. Cape of Good Hope. 

 h. Half-grown male. Poi't Natal. Purchased of ^Mr. Ayrcs. 

 c. Adidt male. Zanzibar. Presented by Lieut.-Col. Playfair. 

 </. Adult male; stufted. Zanzibar. Presented by Lieut. -Col. Play- 

 fair. 



11. Rhinobatiis blochii. 



Ithinobatiis (Syrrhina) blochii, Mii/L ■S,' Ilenle, p. 115, pi. 37. fig. 1 ; 

 Dtoncril, Elasmobr. p. 488. 



The anterior nasal valve is continued towards the median line ])y 

 a fold which nearly meets that of the other side. Snout rather short, 

 the distance between the external angles of the nostrils being more 

 than one-half of the distance of the mouth from the end of the snout. 

 Cleft of the mouth straight, longer than the nostril. The upper 

 rostral ridges distant from each other behind, and convergent in 

 front. Back finely granular, with very distinct tubercles along the 

 median line. Young examples with a white snout, and with scattered 

 round whitish spots. 



Cape of Cood Hope. 



<t-l>. Females, stuffed, 3 feet long. Cape of Good Hope. 

 c. Young male. Cape of Good Hope. 



12. Rhinobatus brevirostris. 



Rhinobatus (Syrrliina) brevirostris, Mi'iU: Sf IIcnIc, y>. 114, tab. 30; 

 Castcln. An. Am. Sud, Poiss. p. 100 ; Dm/icn'l, Elasmohr. p. 489. 



The anterior nasal valve is continued towards the median lino, 

 nearly aueeting that of the other side ; it partly covers the inner 

 angle of the nostril. Snout short, the distance between the external 

 angles of the nostrils being more than one-half of the distance of the 

 mouth from the end of the snout. Cleft of the mouth straight, 

 longer thnn the nostril. The upper rostral ridges convergent in 

 front. Dorsal parts of the trunk with nimierous small tubercles 

 or prickles. A scries of rather large and obtuse tubercles along the 

 median line of the back ; two sliort rows of similar tubercles on 

 each shoulder. 



Brazil. 



a. Stuffed: female, 19 inches long. — One of the typical examples 

 (see Miill. cfc Henle, p. 115; named " Pktti/rJiiiia sinensis" in 

 Gray's Chondropter. p. 98). 



(>. Pine specimen, lirazil. Presented by Prof. Kollikcr. 



4. TRYGONORHINA. 



Trygoaoihiua, 71/////. c^ Ilcnh: 

 Tliis genus difl'ers from Jkhinolnifur. onlv in the form of the ante- 



