CALIFORNIA EUDRILIP.E. ' 39 



the species. There are four piiir of septal _a,huKls in v, vi, vii and viii. The i;laiuls, 

 as far as I can judge from dissections only, are of ahiiost eijual size, somewhat h)n<>er 

 there than in DeKania Troyeri. They are eiiually developed on the lower and upper 

 side of the cesojjhagus. The alimentary canal offers no great peculiarities. The 

 specimens were all very much stretched, and I am not certain if the form of the 

 u3S0i)hagus will prove constant. However, the contractions at the septa were much 

 smaller than in any other species. The (jesophagus from somite ix narrowed down 

 toward somite xii, here it began to gradually increase in width, but the sacculated 

 intestine begins evidently first in xvii, increasing in width gradually backwards until 

 it reaches the region between xxvii and xxxv, where it suddenly narrows and con- 

 tinues as narrow to the end of the body. 



Spermathecn (figs. 42 and 43). There is one pair in ix, opening between viii 

 and ix, of tiie same general appearance as in Deltarda Trotjeri with minor character- 

 istic details. The main sac is ovoid and somewhat lunate, pointed, with very smooth 

 outline and with no trace of warty excrescences. There are two diverticula adlxcd 

 halfway between the base and the glandular part. They are much smaller than 

 those of Deltania Troijeri, being less than one-third as long as the main spermatheea, 

 while in Deltania Iroijeri the diverticula are one-half or more as long as the main 

 spermatheea, and affixed to the muscular part close to the base. The spermathecaj 

 open in front of the 1st setfc and are situated much closer together than those in 

 I). Troyeri. The opaqueness of the spermatheea is tlie same as in the Litter species. 

 There is, however, a decided difference in the location of the spermatheea. In 

 D. Troyeri they are situated so far apart that they do not touch the ventral ganglion. 

 In B. lic.iihdnii, however, they crowd it, this approach being caused partly by the 

 closer proximity of the ventral or inner couple of seta', partly by the situation of the 

 spermathecal pores which in our present form are more ventral to the sette. 



The sperm-sacs (fig. 41) are of a very characteristic form. They arc larger in 

 proportion than those of D.ekgans, hut not <|uite as large as in D. Troyeri. There are 

 two pair, one each in ix and xii, and they do not connect with eacii other. 

 Each one consists of a very large flesh-like lobe, at the base of which are seen iialf a 

 dozen smaller and globular sacs, all connected at the place of adherence to the an- 

 terior se[)tum. These different lobes, the large one as well as the small ones, are 

 full of rounded, oblong or irregular spermatophoric spluerules. The sperm-sacs do not 

 by far fill the somites. The foi'ui of the sj)erm-sacs varies to some extent, but the 

 main character is the same in all, a large, rounded or flask-like lobe, at the base of 

 which are several smaller ones. 



Spermdud and ciliated rosettes as in TJ. Troyeri. The prostate offers the char- 

 acteristic of having the lower part of the glandular sac considerably swollen, conical 

 and gradually diminishing in size towards the apex, which again is slightly enlarged 

 like a knob. There is only one long slightly bent or almost straight seta in each of 

 the penial seta-sacs, both setse opening on a sraali papilla, and which as far as I can • 

 see more resembles that of D. Troyeri than D. elegans. The blood is very pale yellow, 

 paler even than in the other species. There are three strongly pulsating hearts in 



