SOME NEW OR NOTEWOIITIIY SIIKLF.S — HKDLKY. 139 



Ainmirojisis (1) rossiana, Smith, ^•''' from McMurdo's Sound 

 appears akin. Somewhat similar features are presented by the 

 Antarctic genera Neoconcha, Smith, and Trichoconcha^ Smith. 



Probably Amauropsis morchii, Adams and Angas^" should 

 accompany these in a transfer to Pellilitorhia. 



Alvania ph.etornatilis, sp. nov. 



(Plate xli., fig. 16). 



Shell solid, conical, glossy, narrowly perforate, periphery 

 angled, shoulder smooth steeply sloped, base sculptured. Colour 

 uniform dull wliite. Whorls five parted by deeply channelled 

 sutures. Sculpture : first whorl and a half with about six 

 uniform equidistant spiral threads, vanishing on latter whorls, 

 which have the shoulder smooth, periphery girt with prominent 

 double keel, and base with five feebler spirals. Umbilicus a 

 narrow furrow. Aperture entire subcircular, outer lip much 

 thickened. Height, 3 ; breadth, 1-6 mm. 



This nearest approaches Jiissoa imbrex, Hedley,'^^ in which the 

 spire whorls are more exsert, though of similar sculpture. The 

 novelty is shorter, broader, more solid and has the base spirally 

 ridged, whereas in R. imbrex it is smooth. 



Hob. — The species is represented by a single specimen dredged 

 in November, 1880, in 35 fathoms off Broughton Island, Port 

 Stephens, N. S. Wales. It is recorded on p. 21 of the Annual 

 Report of this Museum for 1881 as " No. 62 Rissoa, )<p. nov." 



RiSSOINA CARPENTARIENSIS, sp. UOV. 



(Plate xlii., fig. 20). 



Shell small, solid, ovate. Colour : the beachworn specimens 

 before me are white. Whorls five, rapidly increasing. Sculpture : 

 stout projecting spiral ribs parted by interstices of equal breadth, 

 of these the body whorl has seven to nine, the penultimate four, 



isSmith— Nat. Antarctic Exp., iii., Moll., 1907, p. 5, pi. 5, fig. 6. 



* s Adams and Angas — Proc. Zool. Soc, 1863, p. 42.'i ; Hedley — Proc. 

 Linn. Soc. N. S. Wales, xxvi., 1901, p. 700, pi. xxxiv., figs. 19, 20. 



1^ riedley— Proc. Linn. Soc. N.S.Wales, xxx., 1908, p. 469, pi. x., 

 £g. 33. 



