BY J. J. FLETCHER, M.A., B.SC. 947 



the other from Morpeth on the Hunter. In both cases the speci- 

 mens, which were collected and sent as samples of the wbrms of 

 the localities without reference to any particular worm, belong, 

 with very few exceptions, to the species in question, though each 

 parcel also contained one or two immature examples of a new 

 species. One of these from the Hunter is characterised by having 

 three gizzards. 



C. postclitellian worms, continued. 



10. DlGASTER ARMIFERA, n. Sp. 



(Plate XIII, figs. 1-3.) 



I have already referred {ante p. 559) to D. lumbricoides described 

 by Perrier from Port Macquarie, and to some worms found by 

 myself at Marrickville near Sydney, which from the dissection of 

 a single example seemed to belong to the same genus but to a 

 different species. These specimens obtained in April were devoid of 

 clitella ; from under a stone at the same spot in July after rain I 

 obtained a single specimen with a well-developed girdle ; and in 

 August and subsequently in September from under logs and sheets 

 of bark, also after rain, at a locality near Parramatta I got six 

 specimens of the same worm, all of which even the smallest show 

 at least indications of the clitellum. These worms differ in several 

 points from those described by Perrier. 



The largest (spirit) specimen was 125 mm. long, 4*5 mm. broad ; 

 the length of the preclitellar region 13 mm., of the clitellum 8 mm., 

 and the number of segments about 205. Body cylindrical, both 

 extremities rather obtuse (in spirit specimens). Colour pale flesh- 

 colour, the dorsal vessel shewing conspicuously through the 

 integument. Prostomium depressed, narrow above, slightly concave 

 inferiorly, extending on to the buccal ring for about | of its width. 

 Segments from about v to xiii are widest ; after in they are 

 bi-annulate, or as from vi the primary annuli may be more or less 

 completely subdivided each into two, giving four annuli to a 



segment. 



61 



