Earthworm from Ecuador. 245 
of testes and ciliated rosettes lying in somites xi. and xil., as 
determined by tracing out the nephridia and other organs ; 
but they come to lie at the level of two somites further back. 
Each pair of testes and rosettes is contained in a common 
transversely-placed sac extending below the gut—the “ tes- 
ticular sac” (¢.s.) as we may term it (the ‘ Samenkapsel”’ of 
Bergh, the “ median seminal vesicle” of some authors). 
The anterior sperm-saes arise from the sides of the anterior 
‘‘ testicular sac,” and the posterior sperm-sacs from the poste- 
rior testicular sac. Horst describes a similar arrangement, 
though, as in the case of the other organs of R. Tenkatet, he 
refers them to a more posterior position than in the present 
species. Beddard finds the same arrangement and position for 
these sacs in his species. Perrier found only one pair of sperm- 
sacs and ciliated rosettes, lying “ immédiatement en arriére du 
gésier.”” But in neither of these species is any mention made ° 
of the sperm-sacs extending beyond the segment in which 
they arise; they appear to be limited to one somite in each 
case ; and the condition here described recalls that usual in’ 
the allied family Geoscolecide, mihi, viz. in Geoscoler, Uro- 
cheta, and Diacheta, where each sperm-sac extends through 
at least four and usually more somites. 
The sperm-ducts were easily traceable from the funnels to 
the body-wall, and, as I have stated above, open externally 
on each side between somites xix. and xx. I could find no 
ovaries, although I looked carefully for them; Beddard and 
Horst found them in the normal position, viz. somite xiii. 
There are four pairs of spermathece (spth.) concealed by 
the pharynx [? perhaps that is the reason why Perrier found 
none; he would have expected them rather more laterally 
placed than is the case] and lying in somites v., vi., vii., and 
vill. ; each is a nearly globular sac, with a narrow muscular 
duct, sharply separated from the sac, and passing to the 
external aperture on the anterior margin of the somite; these 
pores lie in the same line as the nephridiopores. On the left 
side of the specimen an additional very small spermatheca 
occurs in somite iv. 
In &. Tenkatec there are three pairs of long pyriform 
spermathecee in somites vil., vill., and ix., whereas in 2. 
Gulielmus there is only one pair of “ spherical or pear-shaped 
pouches ” in somite vil. 
For the purpose of ready comparison with the other species 
I will summarize the characters of R. ecwadoriensis :— 
1. Length 7°5 centim. 
2. Clitellum on somites xiv, to xxv. 3 tubercula on somites 
XxX. [0 XXV. 
