CALIFORNIA EUDRILID.E. 51 



of the chambers staii<l also in (•(Hiiieetioii with eaeh other as at 84 sji. b. and 83. 

 In these chambers are stored the spermballs proper, one in eacli, rarely occupy- 

 ing the whole space of the cliandx'r, l)nt leaving considerable of the lacunary room 

 empty, it never containing- any free spermatozoa, only agglomerations or spermballs. 

 These spermballs may also be seen as white opaque globules from the outside of the 

 spermatheca as represented in figs. 81 ^1 and /A s/>. b. 



Testes (figs. 94, 95, ^i^.) There are two pair of testes, one in somite x, one in 

 xi, as usual post-septal. The anterior testes are enclusrd in the sperm-sac, the pos- 

 terior ones are generally free. Cross-sections show the testes to be deeply raultilobed, 

 with the lobes spreading. As regard the enclosing of the anterior testes it mav be 

 remarked that it is more or less com[)lete, evidently de[)ending on the size of the 

 sperm-sac. In some sj)ecimens the testes were entirely enclosed, in others only the 

 posterior apex was invested in the sperm-sac. Fn most specimens the testes were 

 found pressed close Nt the I)ody-wali and projecting backwards, tlie point of adlierence 

 to the anterior septum being immediately above and adjoining the ciliated funnel of 

 the nephridium in line with the ventral setae. 



Sperm-snrs. There are three sperm-sacs, more or less but generally paired in 

 somites x, xi and xii, the one in the latter somite being much more lobed than tlu' 

 anterior ones, and more frequently paired. The two anterior sperm-sacs are much 

 the largest (lig. 9() and 97). They fdl tlie whole somites, are not always paired, but 

 the lobes connect all along the dorsal body-wall. The anterior sac closely invests the 

 testes and ciliated rosettes in x and furthermore often encloses the ventral ganglion (fig. 

 9(3 and 97). The sperm-sac in xi is also often closed on the dorsal side, but it does not 

 invest the testes nor the sperm funnels of that somite (fig. 98). The sperm-sac in xii 

 differs from the other l)y I)eing deeply lobed in the plane of the trabecnhe which are 

 arranged in a fan-like shape from tlie alimentary canal. This sperm-sac which is 

 seldom paired, does not extend below the alimentary canal as the anterior ones do, 

 but so to say rests entirely on the intestine (figs. 8{) and 99). The anterior sperm-sacs 

 are also traversed by numerous trab(;cula', which however are irregularly arranged 

 (fig. 100). The sperm-sacs are frecjuently infested with parasitic coccidi;e of round 

 shape and with from one to three germ cells (fig. 100, cor.) In size the sperm-sacs 

 are so large that they jjush far l)ackwards, the one pair covering the other, the 

 whole mass often reaching as far back as to touch the prostate, thus entirely covering 

 the ovary and oviducts. This is especially evident in transverse sections when the 

 ovary, oviduct and the three sperm-sacs may be seen at once. 



The oviiry is, as usual, found in xiii and offers no great peculiarities. It is 

 generally deeply lobed, and in cross-section shows the same projecting lobes as the 

 testes. 



The ooiduct is rather thin and characterized by a thick and long upper lip 

 (fig. 103 u. I.), which generally is bent to one side. In one instance the upper lip 

 was forked (as in fig. 103, c). The muscle attaching the upper part of the oviduct to 

 the body-wall is unusually strong (fig. 103, in. s.). 



