214 Records of the Indian Museum. [Vou. XVIII, 1921.} 
separating the dorsal from the ventral surface, is a well-defined, 
dull orange lateral stripe. In colouration the present specimen 
can be easily distinguished from Limmnatis (Poectlobdella) granulosa 
(Savigny), which presents the colour-pattern peculiar to the sub- 
genus Poecilobdella.' ‘The latter species is common in British 
India. 
The trunk is made up of ror annuli, of which the 5th and 6th 
are fused ventrally to form the posterior margin of the anterior 
sucker. The same is true of the 7th and 8th annuli. In the 95th 
and g6th annuli I have been unable to demonstrate such a tendency 
of dividing into two as has been put on record by Blanchard.? 
There are five pairs of eyes, of which the first three pairs are 
arranged on the first three annuli, forming a semicircle; the 4th 
pair lie on the 5th annulus; the 5th pair on the 8th annulus. 
The male genital aperture lies in the posterior edge of the 30th 
annulus, appearing to exist between the 2nd and 3rd annuli of the 
X somite; the female aperture occurs five annuli behind the male, 
between the 2nd and 3rd annuli of the XI somite. 
The nephridial pores lie in the posterior edge of the last annu- 
lus of each somite, but their total number could not be enu- 
merated. 
The alimentary tract agrees in the main with the medical 
leech, the crop being provided with some ten pairs of coeca, which 
are filled with blood, revealing a deep red colour. The intestine 
opens out on the dorsal surface of the last annulus, just in front 
of the posterior sucker. 
Limnatis nilotica is of wide distribution, extending from the 
Azores, through part of Western Europe as well as Northern 
Africa, to part of Western Asia. It is of interest that its range 
extends, as stated by Dr. Annandale,® into the borders and even 
within the boundaries of the Indian Empire. 
!/% Blanchard, Révision des Hirudinées du Musée de Turin. Soll. Mus. 
Zool. Univ. di Torino, VIXI, 1893, pp. 27, 28. 
8 Annandale, N., Note on the Occurrence of the Leech Limnatis nilotica 
in Seistan and the Afghan-Baluch Desert. Rec. /ndian Mus., XVIII, pt. 1, 
1920, Pp: 135. 
ns ens OOS 
