320 F. H. Stewart : Aquatic animals from Tibet. [Voi,. II, 



It differs from 5. similis, Stokes/ in (i) the fact that the pec- 

 toral spines do not curve toward the dorsum ; (2) the absence of 

 lumbar spines. 



lycngth of head and body . . .. •25 mm. 



,, of foot and toes .. .. •13 mm. 



Locality. — Te-ring Gompa, 14,000 ft. May. 



-- V Fig. 4. 



- ^ Family EuCHi^ANiD^. 



15. Euchlanis dilatata, Ehrenberg, 

 Locality. — Gobshi, 13,100 ft,, in a small pool among algae. 



16. Cathypna amban, sp. nov. (fig. 5). 



Specific characters.— hovicsLoi two unequal plates, both roughly 

 elliptical but truncated at the anterior end. The ventral plate 

 compared with the dorsal is broader at the anterior extremity, and 

 is shorter, as it ends in front of the foot which projects ventrally, 

 whereas the dorsal plate covers the origin of the foot. The occipi- 

 tal edge of the lorica is straight, the pectoral somewhat crescentic. 

 There is no incisura for the foot in either plate. The toes are 

 one-shouldered. 



..-':■ I^ength . . ••:.;,:'.;■•• "17 mm. (yio") 



Maximum breadth . . .. "ii mm. 



Locality. — Chang-lo, 13,100 ft. July. 



1 Stokes, Ann. Mag. Nat. Hist., 1896, p. 17. 



