rgoS.] 



Records of the Indian Museum. 



317 



4. Rotifer tridentatus , sp. nov. (figs, i and 2). 



Specific characters. — General shape vermiform, slender. Coro- 

 na divided by a deep and broad sulcus into right and left halves. 

 Eyes circular. The tip of the dorsal column can be partially 

 retracted. There are three circular lines around the neck, from the 

 second of which the antenna arises. The antenna has a minute 

 terminal invertile portion bearing setse. The body is longitudinally 

 fluted. The foot tapers gradually, with three or four encircling lines. 



Pigs. I AND 2, 



Spurs conical, length '02 mm. There are two long conspicuous 

 pedal glands. 



Mastax — Teeth three, .■■,.;.;.-. 



Colourless. 



Length .. •• • • *5 mm. 



Locality.— Te-ring Gompa, 14,000 ft., in a small pool among 

 algse, June. 



PLOIMA ILIvORlCATA. 



Fam. NOTOMMATAD^. 



5. Notommata aurita, Ehrenberg. 

 Locality.— Te-ring Gompa, 14,000 ft. April to September. ■ 



