New phallodrilines (Annelida: Clitellata: Tubificidae) from Western Australian groundwater Pinder, Adrian M. Eberhard, Stefan M. Humphreys, William F. Zootaxa 2006 2006-08-28 1304 1 31 48 [264,432,1164,1190] Clitellata Tubificidae Aktedrilus Animalia Haplotaxida 11 42 Annelida species undetermined   Material examined.  WAM V 4451, one mature and one immaturewhole­mounted, Turners Spring, 34º21’00”S 115º09’15”S,  25masl, Leeuwin­Naturaliste region, Western Australia( Fig. 1),  27 Feb 2002, coll. S. Eberhard.AP colln, several immature specimens in alcohol or whole­mounted, collection details as above.   Remarks. What little of the genitalia that can be seen in the poorly preserved and obliquely mounted mature specimen resembles that of  A. leeuwinensis, except that the penis sheaths ( Fig. 6B) are almost twice the size (curved length 60 µm, height 41 µm) than those of  A. leeuwinensis( Fig. 6A). The chaetae are also slightly larger (up to 38 µmanteriorly), although the mature worm (width 0.15 µmat XI and length 5.4 mm) is of about the same size as  A. leeuwinensis. The penis sheaths are similar in shape to (but shorter than) those of the marine species  Aktedrilus longitubularis Finogenova and Shurova 1980which is widespread but known from south­western Australia. More specimens are required determine the identity of this species. 2002-02-27 WAM S. Eberhard. & Eberhard. AP 25 -115.15417 Leeuwin-Naturaliste region Turners Spring 11 42 V 4451 1 1 Western Australia