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Show 218 MR. F. E. BEDDARD ON NEW EARTHWORMS. [Mar. 19, Island which I examined the dimorphism was not apparent. The mature setae 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 diverticulum, which is longer than the pouch and has a crenate outline above. Hab. St. 174, Pictou Island; 58, Smyth Channel, Wide Bay, Juan Island. (6) Acanthodrilus purpureus, n. sp. Of this species there was only a single specimen in the collection. It was somewhat softened and therefore the measurements 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 pigment, being yellowish brown. The prostomium does not extend at all over the buccal segment. The setae are strictly paired. The clitellum 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 spermiducal glands are loosely and irregularly coiled, extending through several segments ; the penial setae 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 furnished with numerous spinelets, which have a broad base of attachment and the points of which are directed forwards. Hab. St. 81, Magellan Straits, Punta Arenas. This species comes perhaps nearest to Acanthodrilus bicinctus. It indeed only differs by its much greater size, by the shorter penial setae, and by the form of the prostomium. (7) Acanthodrilus chilensis, n. sp. This species, again, is unfortunately represented by a single specimen only, which had therefore to be discreetly dealt with. It is 80 m m . long by 5 m m . in breadth ; the number of segments 150. The colour (in alcohol) is a dark purplish above, passing into an orange colour below. The prostomium is completely joined to the second segment by furrows. |