192 1.] T. Kaburaki : Notes on Leeches. 699 



The female elements are composed of a pair of simple dilated 

 sacs lying ventrally on both sides of the crop and extending almost 

 throughout its whole length. Before opening out by the common 

 aperture from behind, the sac unites with its fellow of the opposite 

 side to form a very short single duct. 



9. Glossosiphonia lata. Oka, 1910. 



Only one example, which appears to be identical with this 

 species, was collected by Professor N. Gist Gee at Soochow, 

 China. 



The body is ovate-elliptical, of a iirm consistency and pre- 

 sents dorsally a roughened surface owing to the occurrence of 

 papillae. The posterior sucker is a small circular disc, its dia- 

 meter being about i mm. The specimen is 11 mm. in length 

 and 5 mm. in width at the middle of the body. 



On the dorsal surface there are seventy-two rings, of which 

 the preocular number seven. These rings, though I could not 

 definitely make them out, appear to resolve themselves into a 

 series of somites somewhat as follows : somites i, xxvi and xxvii 

 are uniannulate ; ii,iii, and xxv biannulate ; and twenty-one so- 

 mites complete with three rings. 



The three pairs of eyes are similar in their arrangement to 

 those found in the preceding species. The first and smallest 

 pair are approximated in ring 8, while the second and third pairs 

 are wider apart^ lying in rings 9 and 10 respectively. 



The dorsal surface is marked all over with numerous well- 

 developed papillae which are of various sizes. The larger papil- 

 lae on successive somites are arranged symmetrically, so as to form 

 seven longitudinal rows, as is seen in Gl. lecberi. Medially situated 

 on the first and second rings of each tj-pical somite are the papillae 

 which form the median row. The papillae forming the paramedi- 

 an rows fall on the first ring of each somite in association with 

 those of the paramarginal, which are less developed and partly 

 inconspicuous ; while those composing the intermediate rows are 

 situated on the second ring. 



In the preserved state the bodj' is of a dark olive colour, 

 marked on the dorsal surface with nine dark brown longitudinal 

 stripes, one median in position and four in each half of the body. Of 

 these four lateral stripes two lie between the median and paramedian 

 rows of papillae, and the other two run just inside the intermediate 

 and paramarginal rows respectively. Besides these an olive-like 

 brown patch marks the middle ring of each somite at the lateral 

 edge of the body. On the ventral surface are also found some 

 interrupted longitudinal stripes which present no regular arrange- 

 ment. 



The crop is provided with six pairs of distally subdivided la- 

 teral diverticula, of which the last pair are reflected posteriorly 

 and give off four outwardly directed secondary diverticula. The 

 stomach gives rise, as is usual, to four pairs of pouches. The anus 



