Hinidinea. 
175 
latter. I have nevertheless thought it best to place them in the same species because 
these papillae are not equally developed in all the specimens, and the individuals 
with the least developed papillae differ only very little from the type. Besides, they 
all come from the same district. The papillae are of several sizes, and are arranged, 
though not quite regularly, in transverse rows, large and small intermingled on the 
larger annuli and small ones only on the smaller. Except for these papillae I notice 
no important dijEference between the type and the specimens in the collection. All 
the examples are strongly contracted, and measure only 4-5 mm. in length. 
LIST OF LEECHES RECORDED FROM LAKE BIWA. 
I append here a list of leeches hitherto recorded from Lake Biwa, as there are a 
number of species — some very common — not represented in Dr. Annandale's collec- 
tion. 
HiRUDINIDAE. 
Hirudo nipponia. Whitmania edentula. 
Whitmania laevis. 
IlERPOBDELUDAE . 
Herpobdella octoculata var. atomaria. Scaptobdella hlanchavdi. 
H. testacea. Mimohdella japonica. 
G1.OSSIPHONID AE . 
Helohdella stagnalis. Placohdella nigosa. 
Glossiphonia complanaia. Hemiclepsis mavginala. 
Gl. lata. H. casmiana. 
Gl. smaragdina. Ancyrohdella hiwae. 
WORKS CITED. 
1862 GratiolET, p. " Recherches sur I'organisation du systeme vasculaire dans 
la sangsue medicinale etl'Aulastome vorace." Ann. sci. nat. ZooL, t. 
XVIII. 
1869 Baird , W. ' ' Descriptions of .some new suctorial Annelids in the Collection 
of the British Museum." Proc. Zool. Soc. Lond. 
1886 Whitman, C. O. ''The Leeches of Japan." Quart. Journ. Micr. Sci. (2) 
Vol. XXVI. 
1887 Blanchard, R. '' Hirudinees." Dictionnaire encyclop. des sc. med. 
1895 BI.ANCHARD, R. "Courtes notices sur les Hirudinees," XI. Bull. Soc. 
zool. France, t. XVIII. 
1896 Blanchard, R. " Description de quelques Hirudinees asiatiques." M em. 
soc. zool. France, t. IX. 
