36 CALIFORNIA ACADEMY OF SCIENCES. 



not extending above the junction witli the diverticula. In general fona tlic ^iperma- 

 theca resembles that of the following species, D. BeuJuuni, but the outline of the main 

 .'-ac is less regular and the diverticula are larger, being about one-half as long as the 

 main sac (figs. 30 to 32). 



Tcsicsi. As usual there are two pair of small testes occupying somites x and 

 xi. They difter in nothing particular from those of the other two species of the 



Sperm->iacs. There are two pair of sperm-sacs, one each in somites^ x and xi. 

 They are long, not very opaque bodies, occupying a large part of the somite, though 

 not filling it closely. The spermatophoric spherules are comparatively large, 

 globular. Tlie sperm-sacs are not greatly lobed, extend considerably in length from 

 the dorsal to the ventral side, and are of more undecided sha|)e than the sperm-sacs 

 of Deltania elegnns and Benhami. They are also, comparatively, much lai'ger (prin- 

 cipally higher) than in that species. It will be noticed that the sperm-sacs occupy 

 somites x and xi, while in Betania elegans, Benhami and dnbln they occupy somites 

 xi and xii. 



Ovan/ and Ovidud (figs. 35, 36, 37, 38). As might be expected the ovary is 

 situated in xiii. It offers no characteristics of interest. There is no ovisac. The 

 oviduct is as usual funnel-shaped, either deeply cut or folded on one side, the inner 

 funnel in xiii, the ovipore in xiv. Close to the oviduct in xiv there is a very peculiar 

 sac (figs. 35 etseq.),oi the size of the oviduct or smaller. It does not ojien directly in the 

 oviduct, and it has the general shape of a septal gland with many rounded lobes arranged 

 as the petals in a rose. The epidermal covering does not closely cover the inner cells 

 which are irregular, apj)arently not closely packed, of uneven size and shape, round 

 or conical, each with a round nucleus, and grainy cell contents. This gland does not 

 connect with the opening of the oviduct funnel, from which it is separated by the 

 septum between xiii and xiv. There is one pair of those glands, one behind each 

 oviduct. The gland is afiixed to the posterior part of the anterior septum in xiv. A 

 similar gland does not exist in Beltania elegana. As to the nature of this organ I can 

 say nothing definite, and I hesitate to consider it as an ovisac, until a more extensive 

 material will allow other investigations. 



Spermduct and Prostate (fig. 33). As in tiie preceding and following species, 

 the spermduct and pi'ostate open in the same ])ore in somite xvii. The spermduct 

 opens slightly posterior to the prostate and also more outwardly, though both oi'gans 

 closely join at the pore. The spermduct is quite wavy throughout its length to the 

 ciliated rosettes, which as usual are found in x and xi. The rosettes are less folded 

 and crenate than those in Beltania elegans. The prostate differs somewhat from the 

 one in the latter species. The muscular duct is not helix-like at its upper end, either 

 straight or bent at right angle to itself, with the distal end pointing backward, being 

 parallel to the longitudinal axis of the body. The relative size of the prostate is in 



