96 Records of flic Indian Museum. [Vol. XIV, 



iilinu district is describod by Dr. Annandale thns. — " Pale translucent 

 yellowish olive. A dark brown vertical bar on each side of the first 

 abdominal segment and a mid-dorsal streak of the same colour on the 

 first three abdominal segments." The smaller specimens from the 

 He-Ho stream were " of a uniform dark greyish olive," but the large 

 male was strikingly different. Dr. Annandale notes that " it was dark 

 blue like a lobster, except for pale bars on the walking legs, pale edges 

 to the outer uropods, pale tips to all the uropods and the telson and the 

 pale fingers of the chelae, the tips of which were reddish. Dr. Annan- 

 dale's observations on P. hendcrsoni in the Darjiling district and my 

 own in the Abor country and in the Garo Hills indicate that the deep 

 blue colour seen in this individual does not occur even in the largest 

 males found in Assam and the Eastern Himalayas. 



Palaemon sp. 



A number of small specimens of Palaemon were found among weeds 

 in a small spring of warm water near Fort Stedman, together with numer- 

 ous examples of Caridina weheri prox. var. sumafrcnsis and one young 

 individual of Palaemon fiaso. The s]iecimens, the largest of which is a 

 male 30 mm. in length with the appendix masculina to all appearances 

 fully developed, agree in general appearance with P. hendersoni. The 

 rostrum is similar wdth 9 to 11 teeth above (2 or 3 of which are on the 

 carapace) and with 3, 4 or 5 below. The carpus of the second peraeo- 

 pods is, however, of much greater proportionate length, being in every 

 instance considerably longer than the palm. In the male 30 mm. in 

 length the second peraeopods are well developed reaching beyond the 

 antennal scale by the chela and a portion of the carpus. 



At present our knowledge of the Burmese species of Palaemonidae 

 is very scanty and I am unable to say whether these specimens belong 

 to a small species of Palaemon, hitherto undescribed, or whether they 

 represent a dwarfed race of some known form. 



Family ATYIDAE. 



Caridina annandalei, sp. no v. 

 Plate XXV, figs. G-15. 



The rostrum usually reaches about to the end of the second segment 

 of the antennular peduncle ; in young individuals it is shorter, sometimes 

 extending only to the end of the first segment, while in very large speci- 

 mens it may reach beyond the middle of the ultimate segment. In 

 lateral view the rostrum is rather strongly depressed, but the tip is fre- 

 quently a little upturned (fig. 6). On the upper border, wOiich is strongly 

 convex, there are from 11 to 2(5 teeth (usually 14 to 23)^; in most in- 

 stances these teeth stretch uninterruptedly from base to apex, but not 



1 Of one hundred specimens two have 11 dorsal teetli, one has 12, five have 14, seven 

 have 15, eight have 16, fourteen have 17, eleven have IS, fourteen have 19, fifteen have 

 20, five have 21, six have 22, five have 23, two have 24, two have 25 and three have 26, 



