5i6 Memoirs of the Indian Museum. [Vol. V, 



deferens. The large epididymes form a characteristic feature of the species and are 

 not apparently symmetrical : one is usually shorter than the other. Testes 6 pairs, 

 of kidney-like form. The ovaries are a pair of simple sacs prolonged anteriorly into 

 horn-like processes. 



Crop with seven pairs of lateral diverticula of fairly simple form and all posterior 

 to the male genital orifice : the first pair reflected anteriorly, the last and longest pair 

 reflected posteriorly. Stomach with the usual four pairs of lateral diverticula. Ex- 

 tensive salivary glands are present and the mouth, as already noted, occupies the 

 nearly terminal position characteristic of the genus. 



Nephridiopores, 14 pairs, situated upon annuli 16, 19, 22, 34, 37, 40, 43, 46, 49, 

 5 2 j 55j 58, 61, and 64. A pair thus occurs upon the middle ring of somites viii-x 

 and xiv-xxiv, none being present in somites xi-xiii. Each pore perforates the 

 middle part of the ring in which it is located and lies about midway between the 

 ventral margin and middle line. 



Habitat, Hosts. 



This little species has so far been found upon Mud-turtles of the genus Emyda 

 and is not peculiar to Lake Chilka. In addition to (a) four individuals from this lake 

 taken from Emyda granosa, Giinth., subsp. intermedia, Annandale, I have the ex- 

 amples detailed below. (Information from notes enclosed with the material.) 



(b) "From Emyda granosa, Giinth. Outskirts of Calcutta." 



(c) "From carapace of Emyda granosa, Giinth. Gatiagurh, Dist. Hughly, Bengal. 



(d) " From carapace of Emyda granosa, subsp. intermedia, Annandale. R. 



Mahanaddi, Sambalpur, Orissa." 



(e) " From Emyda granosa, subsp. intermedia, near Purulia, Chota Nagpur Div., 



Bihar." 

 (/) " From the turtle Emyda vittata, Nagpur, C.P." Dr. Annandale adds " The 

 mud-turtle that occurs at Nagpur is probably E. granosa intermedia, and 

 not E. g. vittata." 



The examples from l,ake Chilka, according to Dr. Annandale' s notes, were collect- 

 ed at "Station No. 52, 4-9 mi. E.^N. of Patsahanipur .. sp. gravity of water 

 1 -007 — roil." This leech, therefore, is able, like its hosts, to accommodate itself to 

 water of a certain degree of brackishness. 



Colour and Size. 



For information as to the colour of this species, I am dependent upon Dr. 

 Annandale who has provided me with notes taken from five different living indivi- 

 duals. From these notes, I am enabled to state that the ground colour varies from 

 greyish green to pale olive brown or pale brown, the gorged crop appearing dull 

 green through the semi-transparent body. 



Dorsal surface with a distinct white median line, closely speckled with white 

 and a darker green, the white specks being prominent on the margins of the body. 

 Ventral surface olivaceous. Posterior sucker with whitish radiating lines, the inter- 



