96 Records of the hulian Musetuti . [YoL. XIV, 



jiling district is doseril)ed by Dr. Aiinaiidale thus. — '' Pale ti'auslucent 

 yollowisli 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 frojn the 

 He-Ho stream were " of a imiform dark greyish olive/' but the large 

 male was strikingly different. Dr. Annamlale 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. hendersoni 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 mimer- 

 ous examples of Caridina weberi prox. var. sumatrensis and one young 

 individual of Palaemon naso. The specimens, 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 with 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 nuich 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 Avhether 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. nov. 

 Plate XXV, figs. 6-15. 



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

 of the antennular ])eduncle ; 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- 

 qaently a little upturned (fig. (')). On the upper border, which is strongly 

 convex, there arc from 11 to 26 teeth (usually 14 to 23)^; in mf)st in- 

 stances these teeth stretch uninterrui:)tedly from l)ase to ajX'x. but not 



1 Of one hundiod specimens two have 1 1 dorsal teetli. one lias 12. five have 14, seven 

 have 1.5, eight have !(>, fointeen have 17, eleven have IS, fourteen have 111, lifteen liave 

 20, five have 21, six have 22, five iiav(> 2.'>, two have 24, two have 25 and three have 26. 



