ret NOTES ON THE HABITS AND 
DieteLoort ON OF LIMNOCNID A 
INDICA, ANNANDALE. 
By F. H. Gravety, M.Sc., Assistant Superintendent, Indian 
Museum, and S. P. AcHARKAR, M.A., Lecturer on Biology, 
Elphinstone College, bombay. 
(Plate xxxvi). 
The medusa which forms the subject of the present paper was 
discovered in May, 1911, by Mr. Agharkar who sent the few speci- 
mens he was then in a position to collect to Dr. Annandale for 
examination. Dr. Annandale communicated the discovery to the 
Asiatic Society (see A.S.B. Proceedings for August, Ig1I) and to 
‘‘Nature” (vol. Ixxxvii, IgII, p. 144). As the specimens had 
reached him in a fragmentary condition Dr. Annandale was unable 
to describe them fully and further collecting was undertaken by 
the authors of this note in April, 1912, since when he has des- 
cribed the species under the name Limnocnida indica (Rec. Ind. 
Mus. vii, pp. 253-256). 
Our knowledge of the distribution of the genus Limnocnida in 
India is probably still very incomplete. So far it has only been 
collected in Western India from the Yenna and Koyna, two tribu- 
taries of the Krishna, and we have been unable to add to these 
records by personal observation; but the Mamlatdar of Medha, 
after seeing the specimens we had collected near his village, told 
us that he had seen similar organisms at Dhom in the Krishna 
itself in March, 1g12, and we think his evidence may be accepted 
as trustworthy. These three rivers, together with two others 
which flow down on the western side of the Ghats, rise in a small 
temple near Mahabaleshwar at an altitude of 4385 ft. above sea 
level. All of them sooner or later fall precipitously over a band 
of hard rock from the plateau into wide valleys which at their com- 
mencement are probably not more than 3000 ft. above sea level. No 
medusae have been seen or heard of above these falls, although we 
searched the only place in which they were likely to occur—an 
artificial lake in the upper course of the Yenna Valley close to 
Mahabaleshwar. Nor did we hear of any place where they were 
known west of the Ghats, or find them ourselves in the Vashishti, 
the only river we were able to examine on that side. 
In the Yenna Limnocnida was found in May, IgII, and again 
in April, 1912, in a pool at Medha,. about 2200 ft. above sea level 
and about 15 miles below the falls; and local information points 
to its occurrence in a pool at Kelghar at the head of the deep 
valley and in some pools considerably below Medha. Inthe Koyna 
