218 MR. F. E. UEDDAllD ON XEW EARTHWORMS. [^Mar. 19, 



Island which I examined the dimorphism was not apparent. The 

 mature sette were of the longer type with a flexible extremity ; the 

 end was slightly dilated and beset with very fine spinelets. If I 

 had had more specimens at my disposal it is possible that it might 

 have been found necessary to divide these examples from Juan 

 Island into a distinct variety. 



The spermathecae (as usual in viii., ix.) are oval sacs with a 

 moderately short duct ; with the latter communicates the diverti- 

 culum, which is longer than the pouch and has a ci'enate outline 

 above. 



Hah. St. 174, Pictou Island; 58, Smyth Channel, Wide Baj', 

 Juau Island. 



(6) Acanthodrilus purpureus, n. sp. 



Of this species there was only a single specimen in the col- 

 lection. It was somewhat softened and therefore the measure- 

 ments are perhaps a little higher than one would be inclined to 

 allow as typical. 



The length is 95 mm., the diameter 5 mm. ; the number of 

 segments 98. 



The colour (in alcohol) is a reddish purple above, passing into 

 an orange -brown below : the clitellum is distinctly without pig- 

 ment, being yellowish brown . 



The prostomium does not extend at all over the buccal segment. 



The setae are strictly paired. 



The chtellum occupies segments xiii.-xvi. and is quite complete. 



There seem to be no papillae of any kind. 



The gizzard lies in segment vii. The last heart is in xii. 



The spermathecae have each a longish tubular diverticulum 

 dilated at end. 



The sperraiducal glands are loosely and irregularly coiled, 

 extending through several segments ; the penial setaj with which 

 they are provided are curve-like and of moderate length only. 

 The extremity is pointed and the distal end of the seta is f lu-nished 

 with numerous spinelets, which have a broad base of attachment 

 and the points of which are directed forwards. 



Hah. St. 81, Magellan Straits, Punta Arenas. 



This species comes perhaps nearest to AcantJwdrilus hicinctus. 

 It indeed only differs by its much greater size, by the shorter 

 penial setae, and by the form of the prostomium. 



(7) Acaathodrilus chilensis, n. sp. 



This species, again, is unfortunately I'epresented by a single 

 specimen only, which had therefore to be discreetly dealt with. 



It is 80 mm. long by 5 mm. in breadth ; the number of seg- 

 ments 150. 



The colour (in alcohol) is a dark purphsh above, passing into an 

 orange colour below. 



The prostomium is completely joined to the second segment by 

 furrows. 



