>•] 



LITTLE-KNOWN EARTHWORMS. 



305 



diminish in size towards either extreme. These glands are situated 

 on the dorsal wall of the intestine, close to and on either side of the 

 dorsal vessel ; each is supplied with a rich plexus of blood-vessels 

 derived from the most anterior of the two vessels which arise from 

 the dorsal trunk in each segment. 



These glands are probably of the same nature as those described 

 by myself in a similar position in Megascolex'- and Ti/phceus-, and by 

 Dr. Horst^ in Acanthodrilus. 



The female reproductive organs I have already described ; they 

 are quite unique in that the ovary is directly continuous with its 

 efferent duct, which opens on to the exterior in common with the 



Fig. 2. 



Generative organs of Eudrilus, with bursa copulatrix laid open. 



p, peuial process ; c, pad-like process connected with glandular appendix. 



Other lettering as in fig. 1. 



spermatheca. The male reproductive organs are also remarkable ; 

 they have been described by M. Perrier in all the three species of 

 the genus ; my own dissections do not altogether bear out his state- 

 ments, but of course the differences may be specific ; they are hardly 

 individual, inasmuch as three or four specimens agreed perfectly. 



In most cases there were three pairs of vesiculse seminales, situa- 

 ted in segments 10, 11, 12 ; with these are connected a pair of vasa 



' Trans. Eoy. Soc. Edinb. vol. xxx. pt. it. p. 493. 

 2 Ann. &. Mag.'Nat. Hist. 1883, xii. p. 222. 

 ^ Notes from Leyden Museum, vol. vi. p. 103. 



