ENCHYTRAEIDAE 



2S9 



The male funnels (Fig. lo) are relatively small, and each appears to be triangular in 

 shape ; this is due to the organ being bent together on itself, as shown in the figure. This 

 condition was seen in five sectioned specimens and in others examined whole, and 

 appears therefore to be constant. As seen thus, the funnels are about as broad as long, 

 but if straightened out they would probably be about three times as long as broad. 



The vas deferens forms a coil, not large, but close, behind septum 1 1/12 and in front 

 of the male aperture, in the anterior and ventral part of segment xii ; it is 10 /^ in diameter, 

 and enters the penial body on the dorsal side of the latter. 



The penial body is of lumbricilline type — a definite, compact organ with muscular 

 and peritoneal investments, regularly ovoid in shape except that it is indented — slightly 

 bifid or bilobed — on its internal aspect; its antero-posterior length is 105 ft and its 

 height 70 ;u.. There are no other glandular masses in relation with the male aperture. 



Fig. 9. Enchytraeus australis; cerebral ganglion; 

 both forms were observed. 



Fig. 10. Enchytraeus 

 australis ; male funnel. 



Fig. 1 1 . Enchytraeus 

 australis ; spermatheca. 



As seen in specimens mounted whole, the spermathecal ampulla (Fig. 11) is of rela- 

 tively small size, irregular in form, with a bulging on one side ; in sections most of the 

 series show it to be somewhat compressed antero-posteriorly ; spermatozoa are seen 

 pushing their heads into the epithelial lining ; and there is a patent communication with 

 the oesophagus. The duct is cylindrical, of some length — longer than the ampulla, but 

 rather narrow (26/x) where not covered by glands; it is well marked off from the 

 ampulla. The ectal half or rather more of the duct is covered all round by a glandular 

 lobed mass, which as usual consists of the cells which line the lumen of the duct 

 elongated and pushing outwards through the fibres of the muscular coat. 



There are no copulatory glands. 



For some time I thought it possible that the present specimens might be referable to 

 Vejdovsky's Etichytraeus bnchholzi, a common European species which has also been 

 recorded from the Straits of Magellan (Ude, 1896). I have, however, decided to separate 

 them as a new species on the following grounds: 



(i) The number of segments — round about 40 in a considerable number of 

 examples, as against 25-28 in E. bnchholzi. 



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