ARTICLE XI 



REPORT ON HIRUDINEA 



By J. Percy Moore 

 (Received December 15, 1934) 



The collection of leeches is very small, consisting of ten lots representing three 

 species. One of these came from the Nilgiri Hills in Madras Presidency and two from 

 Kashmir, one being a new record for that state. All are from moderate elevations and 

 the absence of land leeches is worthy of note. 



THEROMYZON SEXOCULATA (Moorc) 



Protoclcpsinc scxoculata Moore, 1898. 

 Thcromyzon sexoculata Moore, 1924. 



Harding, 1927. 

 ? Protoclcpsis mcyeri Livanow, 1902. 



This species is new to Kashmir, though it was previously known from India, having 

 been recorded from Manipur (Moore, 1924) ; the type is from Bering Island (Moore, 

 1898 j. Livanow considered T. scxoculata (unfortunately so named) identical with a 

 species known from Russia, Sweden and France, to which he gave the new name of T. mcyeri. 

 Externally the resemblance, in respect to annulation, eyes, genital orifices and color, is close. 

 The only difference noted on the Manipur specimens was that the second annulus (ai) of 

 somite XXVI was differentiated only at the margins, as is also the case in the Kashmir 

 specimens. Somite III is triannulate on all specimens. But a series of sections which this 

 material permitted definitely establishes the distinction between the Indian form and T. 

 mcyeri. The gonopores are similar in position ( S XI/XII, 5 XII a2/a3) but the two 

 oviducts are united beneath the nerve cord into a slender, tubular vagina which runs vertically 

 to the ? orifice, exactly as in T. tcsscUata, as contrasted with T. mcyeri in which there is no 

 such common vagina. The condition of the oviducts in the original T. scxoculata is 

 unknown, as it could not be determined from the single very poorly preserved type specimen. 

 It is not improbable that the south Asiatic species will eventually prove to be distinct from 

 T. sc.vociilata but present evidence gives no ground for separation. 



The color of the present specimens is largely faded but all retain at least traces of the 

 six series of metameric yellow spots and in addition a moderate number of similar but unseg- 

 mental spots. One specimen has a dark band on each side of the buccal ring, wide laterally 

 and tapering to a point medially. The dark green, contracted chromatophores are con- 

 spicuous and on the venter of one specimen form dark rings about the sensillae which 

 appear to the naked eye as black dots. On complete somites a3 is constantly somewhat 

 larger than the other annuli Ijut there is no indication of subdivision. Ventrally throughout 

 the length, and dorsally at both ends, the intersegmental furmws are conspicuously deeper 

 than the others and a2/a3 is deeper than til/aZ. 



Mem. Conn. Ac/ml, Vol. X, Art. XI, June, 1936. 



