287 



A. verconis, Torr and Ashby, becomes a synonym of 

 Notoplax wilsom, Sykes. Distinguishing characters observable 

 in some specimens are not constant. 



.4. retrojectus, Pilsbry. — Add this to Victorian list. I 

 have specimens from San Remo, and Mr. Gabriel has a long 

 series from various localities in that State. 



A. rufus, Torr. — I have carefully examined the type and 

 find it only a colour variety of A. variabilis, Ad. and Angas, 

 of which species it therefore becomes a synonym. 



A. kimheri, Torr, should be placed next to A. retro jectus, 

 Pilsbry, to which species it is very closely related. 



A. leuconotus and A. ap'proximans, Hed. and Hull. — 

 Withdraw from Australian fauna, being Norfolk Island and 

 Lord Howe Island species. 



A. maxillaris, Ashhy (loc. c*^, Oct., 1919, p. 397). — Add 

 to list, at present restricted to fauna of South Australia. 



A. gatliffi, Ashby. — Add to list and include in fauna of 

 South Australia, Victoria, and Tasmania; see my papers 

 (loc. cit., Oct., p. 198, 1919, on the Wilson Collection, loc. 

 cit., Nov., 1920, and "The Chitons of D'Entrecasteaux 

 Cliannel," loc. cit., July, 1920). ) 



A. hednalli, Pilsbry. — Add this species and include in 

 fauna of South Australia, Western Australia, Tasmania, 

 Victoria, and New South Wales. 



.4. tatei, Torr and Ashby. — Withdraw this, as only a 

 coloured variety of A. granostri^tus, Pilsbry, and becomes a 

 synonym thereof. 



A. zealandicus, Quoy and Gaimard. — Add this to list as 

 from New South Wales. 



Comments on last Three Species and 

 A. granostriatus. 

 I extract from my notes the following comments on the 

 relations and differences of the shells described under the 

 above four names : — 



A. granostriatus. A. hednalli. 



Dorsal area smooth, or practic- Deep longitudinal grooving in 

 ally so, but so sub-cut aneously dorsal area, 

 longitudinally lined as to make 

 it difficult to realize that it is 

 only imitation grooving. 

 Pustules of pleural and lateral Pustules flat and strongly 

 areas flat and shallow, ovate raised, generally shorter and 

 to lanceolate. Girdle more more rounded than in grano- 

 spiculose and fringe more striatus, usually obovate. 

 strongly developed than in Sculpture coarser than that of 

 hednalli. Never attains a granostriatus. Attains a large 

 large size. size. 



J 



