712 Records of the Indian Museum. [Vol. XXII, 



Genus Haemopis, Savigny. 

 23. Haemopis sanguisuga (Linnaeus), 1758. 



The three specimens of this well-known leech which occurs 

 throughout the greater part of Europe, were obtained by Capt. R. B. 

 Seymour Sewell from the Waddi Gwyzie (Gaza) in Palestine. It 

 is of particular interest that its range extends into Transcaucas- 

 ia, Syria and Palestine. As is well known the term " horse-leech" 

 or " cattle-leech " is applied to this species more than Limnatis 

 nilofica; it frequently occurs in springs, and thereby causes great 

 discomfort and even danger. This species has, especially in the 

 last few years, been subjected to many changes of name (see 

 Harding, igio). 



The body is smooth on the surface, attenuated anteriorly and 

 bluntly rounded posteriorly, its lateral sides being more or less 

 parallel for the greater part of its length. The posterior sucker 

 represents a large circular disc and is almost centrally attached. 

 The largest specimen was 30 mm. long, in front of the posterior 

 sucker, by 11 mm. across at the middle of the body. 



The colour in spirit is dark brownish , appearing to show some 

 traces of geometrical patterns on the dorsal surface. 



There are 103 rings, of which rings 6 and 7 are fused ven- 

 trally to form the posterior boundary of the anterior sucker. The 

 same is true of rings 8 and 9 on the ventral side. Somites i, ii, iii 

 and xxvii are uniannulate; iv, v and xxvi biannulate; vi, vii and 

 XXV triannulate ; viii quadriannulate ; the sixteen somites ix-xxiv 

 are complete with five rings. 



The five pairs of eyes lie respectively in rings 2, 3, 4, 6 and 9. 



The male genital orifice is situated between rings 31 and 32, 

 that is between the fourth and fifth rings of somite xi ; the female 

 orifice lies five rings behind the male, that is between the last two 

 rings of somite xii. 



The nephridial pores, numbering in all seventeen pairs, are 

 placed in the furrow between the second and third rings of the 

 middle seventeen somites. 



The anus opens dorsally just behind the last ring of the body. 



24. Haemopis birmanica, R. Blanchard, 1894. 



Haemopis ivebei'i, R. Blanchard, 1897. 

 The collection contains some examples of a species which 

 agrees precisely with Blanchard's Haemopis weberi from Sumatra. 

 The latter may be regarded as synonymous with H. birmanica from 

 Burma described by the same author, and here I have so treated 

 it. This leech is closely allied to Haemopis sanguisuga, so that I 

 was for some time inclined to regard it as a variety of that species. 

 The specimens examined were obtained from various parts of the 

 Darjiling District, the East Himalayas, at Lahore and also at 

 Khunlan in Siam. It is of some interest that an example from 

 Lahore was found in the nasal cavitv of a horse. 



