1909.] 
N. Annandai,e : Report on the Batoidei. 
29 
Skin fairly tough. A‘ few enlarged rounded denticles in the scapular region followed 
posteriori}" by a single row of stout, short, retro verted spines with flat bases, the 
row extending on the tail to the base of the anterior spine ; the middle of the back 
occupied by a pavement of small, flat, round scales, which gradually become 
smaller towards the periphery. The pectoral and pelvic fins naked ; the tail 
covered with small, bluntly spinous tubercles. 
Month . — Jaws feebly undulated ; teeth white, practically uniform in size, each with a 
low transverse ridge situated near the posterior margin and with a distinct trans- 
I'lG. 4«. 
Fig. 4. — Outline of fresh specimen of T. jenkinsii, x c. 
,, 4<î. — Scales on the middle of the posterior part of the back of the same specimen, x ib 
verse depression in front. Processes on the floor of the mouth four in number, re- 
sembling those of T. gerrardii but with the two central ones a little further apart. 
