484 TRYGONID^. 



3. Tseninra melanospila. 



Taeniura melanospilos, Bleek. Nat. Tyds. Ned. Ind. 1853, iv. p. 513. 



Disk subcircular, somewhat broader than long. Nasal valve 

 slightly fringed. Two papillae on the bottom of the mouth. Tail 

 a little longer than the disk. Upper surface of the body entirely 

 covered with minute spines ; a row of larger thorns along the median 

 line of the back. Also the tail is rough. Greyish, with numerous 

 black spots and dots. (^Blhr.) 



Batavia. 



4. Taeniura grabata. 



Trygon grabatus, Geoff. St.-Hil. Descr. Eg. Poiss. p. 218, pi. 25. 



figs. 1 & 2. 

 Taeniura grabata, Mull, ^ Henle, p. 172; Dtim6ril, Elasmobr, p. 621. 



Disk circular ; tail about as long as the disk. Upper parts 

 covered with minute spines with a radiated base. Reddish grey 

 above, white below. {Oeoffr.) 



Bed Sea. 



5. Taeniura motoro. 



Taeniura motoro, Mitll. S)- Henle, p. 197 ; Duminl, Elasmobr. p. 624. 



Disk ovate, with the posterior angles rounded, entirely covered 

 with very small stellate ossifications, no larger tubercles being inter- 

 spersed between them. A series of strong thorns along the back of 

 the tail, and sometimes other smaller ones on its sides. Tail as 

 long as, or rather longer than, the disk. Five papiUae on the bottom 

 of the mouth. BroMoiish, with round yellow spots which, some- 

 times, are edged with black. 



Brazil (R. Cuyaba). 



a. Adult male : stuffed. South America. 



Tceniura miilleri, Casteln. An. Am. Stid, Poiss. p. 102, pi. 48. 

 fig. 2; Dumeril, Elasmobr. p. 621 ■, = Tceniura diimerilii, Casteln. 

 I. c. p. 101, pi. 48. fig. 1 ; Dumeril, I. c. p. 622 ; probably =!r^mMra 

 Jienlei, Casteln. I. c. p. 102, pi. 48. fig. 3; Dumeril, I. orp. 623, ap- 

 pears to be most closely allied to T. motoro, but the stellate ossifica- 

 tions are unequal in size, larger ones being mixed with smaller. 

 From the materials existing in collections, it is impossible to decide 

 whether this is a specific difference. 



6. Taeniura orbignyi. 



Taeniura d'orbignyi, Casteln. An. Am. Sud, p. 102, pi. 49. fig. 1 ; 

 Dnmiril, Elasmobr. p. 624. 



Disk ovate, longer than broad, covered with asperities, some of 

 considerable size being mixed with minute ones. A row of large 

 thorns along the back of the tail, pointing backwards. Brownish 

 with darker spots. {Cast.^ 



Tocantins. 



