670 MR. J. BRAZIER ON NEW AUSTRALIAN SHELLS. [Dec. I, 



whorls 4^, increasing rapidly, last large, flattened, spirally keeled, 

 with one above and one below the periphery, the space between 

 them having a hollow appearance ; umbilicus large, with a keel sur- 

 rounding it ; aperture oblique, circular ; peristome simple, thin, acute. 

 Operculum horny yellow, thin, concave, multispiral. 



Diam. maj. 1, min. J, alt. | lin. 



Hab. Fitzroy Island, north-east coast of Australia ; found under 

 wood, near a freshwater stream {coll. Brazier). 



This interesting species belongs to the new subgenus Bitropis of 

 Blanford ; it reminds one of a miniature Tropidophora cuvieriana 

 or T. tricarinata, with its prominent keels. 



I have named it after Mr. White, F.R.A.S., Astronomer, of Mel- 

 bourne, Victoria. 



*6. Diplommatinagowllandi. (Plate LXXXIII. figs. 19-21.) 



Shell dextral, rimate, acuminately oblong, white, hyaline, finely 

 and obliquely ribbed, interstices smooth ; spire conical, apex acute, 

 sometimes decollated ; whorls from 6 to 7, sometimes 9, the first 

 three forming the apex are regular and tapering, the fourth broad, 

 the fifth longer and broader, the sixth very small, having a pinched 

 or distorted appearance in front, the seventh or last extends nearly 

 up to the suture of the sixth ; aperture vertical, subcircular ; peri- 

 stome thin and broad ; margius continuous, shining, the outer broadly 

 expanded, the columellar margin thick, straight, slightly channelled 

 in front, tooth within minute. 



Diam. maj. \\, min. f, alt. \ lin. 



Hab. Fitzroy Island, north-east coast of Australia ; found at the 

 root of a large tree, crawling upon the grass (coll. Brazier). 



This curious species differs from any of the Diplommatince that I 

 have met with, the first three whorls forming the apex being regular 

 and tapering, the fourth a little broader, the fifth still longer and 

 broader, the sixth having a pinched-in appearance, while the last is 

 large, giving the shell a most distorted aspect ; the greatest breadth 

 is at the fifth whorl, the least at the sixth. The few hundreds that 

 1 collected are all of the same description. I have named it after 

 my late lamented friend John Thomas Ewing Gowlland, Staff-Com- 

 mander K.N., who was unfortunately drowned while surveying in 

 Port Jackson, August 1874, and who was in charge of the steamer 

 that conveyed the Eclipse Expedition to Cape Sidmouth. 



*7- Georissa multilirata. (Plate LXXXIII. figs. 8-10.) 



Shell imperforate, globosely conical, reddish brown, strongly spi- 

 rally striated, interstices rather rough, shining ; whorls 4, roundly 

 convex, suture channelled ; spire conical, apex papillary, base convex, 

 very finely marked with spiral lines ; aperture vertical, lunate ; peri- 

 stome thickened ; columellar margin straight, thickened, with a white 

 callus around the perforation, which is hollowed out. Operculum 

 shelly, ovate, smooth, brownish, with a long pointed shelly protu- 

 berance on the underside or place of attachment to the animal. 



Diam. maj. |, min. |, alt. 1 lin. 



