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DESCRIPTIONS OF NEW SPECIES OF AUSTRALIAN PLANISPIRA 



AND CHLORITIS. 



By Hugh C. Fulton. 



Read Uth June, 1907. 

 PiANispiRA (Trachiopsis) acuticostata, n.sp. 



Shell depressed globose, umbilicus a little less tban 3 mm. in width, 

 sub-transparent, shining, light-horn colour ; whorls 5, moderately 

 convex, lower two with close-set, oblique riblets or costae, upper 

 whorls smoother; aperture subcircular, water-white within, peristome 

 white, slightly expanded, columella triangularly dilated at point of 

 insertion. Maj. diam. 15^, alt. 11 mm. 



Huh. — Dalrymple, Queensland. 



Very similar in coloration to T. Drlcssertiana, Le Guillou, but easily 

 distinguished by its more globular form and its sharply produced costse, 

 both above and below. In Delessertiana the costse are very obtuse on 

 the under side. 



Mr. Chas. Hedley, to whom I sent for examination the types of 

 this and the following species, informs me that they have specimens 

 of both species in the Australian Museum; he also kindly informs 

 me that Delessertiana does not occur so far south as the locality of 

 amticostata. 



Chloritis (AusTEOcnLORiTis) Hkdleti, n.sp. 

 Shell subglobose, moderately thin, light brown, umbilicus narrowly 

 open to about 1 millim. at widest pai't and partly covered by the 

 columella, without the lens apparently smooth, except for some 



few indistinct lines of growth, under the lens the earlier whorls are 

 seen to have oblique, blunt stria?, and the lower whorls are covered 

 with irregularly arranged hair-scars; whorls 5, moderately convex, 

 the front of the last having a very faint indication of angularity ; 

 aperture subcircular, pellucid within ; peristome whitish, thin, 



