1913.] vStanley Kemp : Crustacea Decapoda. 309 



The specimen from Sadiya has unfortunately been mislaid. 

 Those from the backwater of the Rowta R. may be recognized as 

 types of the species. 



Caridina hodgarti, sp, nov. 



(Plate XX, figs. 29-31 ; plate xxi, figs. ^^, 39.) 



The rostrum is slender and in well-grown specimens reaches 

 well beyond the apex of the antennal scale. Its dorsal margin 

 is slightly concave in lateral view and at the apex it is straight or 

 trends a little upwards. In the proximal half of the upper margin 

 there is a series of 8 to 16 rather close-set equidistant movable 

 teeth. The number most commonly found is li ; 10 to 12 occur 

 in 67% and 9 to 13 in 92% of the specimens examined. The 

 posterior tooth is in rare cases situated on the carapace behind 

 the orbital notch ; between each pair of teeth there is a single 

 seta. Immediately behind the slender apex there is a single fixed 

 tooth ; occasionally two are found in this position and in rare 

 instances none at all. The ventral margin is furnished with from 

 I to 7 stout fixed teeth, widely separated. The number most 

 commonly found (48% of the specimens examined) is 4 . and 3 to 5 

 occur in 91% of the examples (fig. 38). 



The carapace is compressed, of greater proportional length 

 than in most species of the genus, and the onh^ spine present is 

 the antennal. 



The eyes are well pigmented. The lateral process of the 

 basal segment of the antennular peduncle is sharply pointed and 

 extends beyond the eyes. The second segment is twice as long 

 as wide and is nearly twice the length of the third. The antennal 

 scale is narrow, about four and a half times as long as wide ; 

 its inner margin in the distal half is straight or even ver^^ slightly 

 concave and the straight outer margin terminates in a sharp spine 

 far behind the narrow apex of the lamella (fig. 39). 



The third maxillipedes and all the peraeopods are very short. 

 The former scarcely reach the distal end of the second segment 

 of the antennular peduncle. 



The first peraeopods only reach a trifle beyond the base of 

 the antennal scale. The carpus (fig. 29) is one and a half times 

 as long as broad ; it is scarcely at all excavate anteriorly and is 

 three quarters the length of the chela. The palm is as long as 

 broad and is shorter than the dactylus. 



The peraeopods of the second pair (fig. 30) reach a little 

 beyond the eyes. The carpus is about three times as long as 

 broad and is about equal in length to the chela. The palm is 

 scarcely longer than broad and is a little shorter than the dactylus. 



The last three pairs of peraeopods bear spines on the meral 

 and ischial segments much as in the preceding species. The third 

 reach nearly to the end of the second segment and the fourth to 

 the end of the first segment of the antennular peduncle, while the 

 fifth reach as far forwards as the eyes. The dactyli of the third 



