18/2.] MR. J. BRAZIER ON NEW LAND AND MARINE SHELLS. 21 



This fine species I have named after its discoverer Capt. Brodie, 

 an enthusiastic collector, who has contributed much to our know- 

 ledge of the Solomon Islands. 



Varieties of this species occur in which the dark-brown band is 

 occasionally found above the chalk-white one, and a brown band 

 under the periphery. 



*2. Helix (Geotrochus) choiseulensis, sp. nov. (Plate IV. 

 fig- 7.) 



Shell perforate, conical, moderately solid, obliquely very finely 

 striated, reddish brown, ornamented with a yellow sutural band, and 

 two others below ; spire conical, apex acute ; whorls 6, moderately 

 convex, the last not descending, slightly angled at the periphery, 

 convex at the base; aperture diagonal; peristome rose-coloured, 

 rather widely expanded and reflected ; collumellar margin dilated 

 and reflexed, almost covering the perforation. 



Diam. maj. 8, min. 6, alt. 8 lin. 



Hab. Choiseul Island, Solomon Islands {Captain Brodie). 



This pretty species is intermediate in form between Helix splen- 

 descens, Cox, and Helix mendana, Angas, also from the Solomon 

 Islands. 



*3. Helix (Geotrochus) mendoza, sp. nov. (Plate IV. " 

 fig. 8.) 



Shell narrowly perforate, conical, rather thin, very finely obli- 

 quely striated, light straw-colour throughout ; spire conoid, apex 

 rather obtuse ; whorls 6 to 6|, slightly convex, narrowly channel- 

 led at the suture, sharply carinated and angled at the periphery, 

 base rather flat ; aperture oblique, triangularly ovate ; peristome 

 thin, white, right margin a little expanded, columellar margin re- 

 flexed, and expanded over the perforation. 



Diam. maj. 6|, min. 5j, alt. 8 lin. 



Hab. Choiseul Island, Solomon Islands {Captain Brodie). 



This species differs from any of the known Geotrochi from the 

 Solomon Islands in being sharply carinated at the periphery. 



4. Helix (Cam^ena) mulgravensis, sp. nov. 



Shell umbilicated, turbinately globose, thin, smooth, very faintly 

 obliquely striated with fine granulations (only seen under the lens), 

 reddish yellow, with numerous spiral chestnut lines and bands ; 

 spire conoid, obtuse ; whorls 6, convex, last deflected in front, base 

 sculptured the same as the upper surface; umbilicus deep; aper- 

 ture diagonal, lunate, interior purplish ; peristome reflected, tinged 

 with brown, margins approximating and joined by a thin callus, 

 columellar margin dilated and reflected, nearly covering the um- 

 bilicus. 



Diam. maj. 2 inches 4 lin., min. 1 inch 2 lin., alt. 1 inch 1 lin. 



Hab. Mulgrave Island, Torres Strait, North Australia {coll. Bra- 

 zier and Hargraves). 



This species is distinguished by the numerous fine reddish lines 



