8 AUSTRALIAN' LAXD SHELLS. 



VI. SECTION CONULUS. Pfr. Yers. p. 123. 



* H. turriculata. * H. Penolensis. 



* H. Wilcoxi. * H. Parramattensis. 



16. Helix turriculata. Cox. Plate VIII. Fig. 11 , natural size 

 and magnified. M.C. 



Shell minutely umbilicatecl, semi-globosely conical, very thin, trans- 

 parent, pale horny, and somewhat glassy, very lightly striated 

 throughout ; spire conical, obtuse ; whorls 6, slowly increasing, 

 slightly convex, last keeled, not descending ; base slightly sloping, 

 very finely striated as above, and more glossy ; aperture moderately 

 oblique, angularly lunate ; peristome simple, thin, slightly angular 

 in front, columella moderately dilated above and expanded. 



Diameter, greatest - 15 ; least - 13 ; height 0-10 of an inch. 



Habitat. Miriam Vale, Port Curtis, Queensland. Blomfield. 



A delicate glassy-horny conical species, the very regular spire of which 

 is three times the height of the base ; it is nearly allied to the less 

 trochiform, hyaline, and more coarsely sculptured species, H. 

 Wilcoxi. 



16. Helix Parramattensis. Cox. Plate VI. Fig. 10, natural 



size and magnified. M.C. 



Cox, Catalogue of Australian Land Shells, 1864, p. 20. 



Shell not umbilicated, turbinately globose, thin, shining, pale, yellowish- 

 horny, smooth ; spire obtusely conical ; whorls 6, very regularly in- 

 creasing, moderately convex, last more so ; base convex, very glossy; 

 aperture slightly oblique, lunate ; peristome thin, simple, regular, 

 columellar margin scarcely expanded above. 



Diameter, greatest 0'19 ; least 0'16; height 0-14 of an inch. 



Habitat. Parramatta. King. Lyndhurst, near Sydney. MacGil- 

 livray. Wollongong. Masters. Botanic Gardens, Sj'dney. Brazier. 



An inconspicuous little horny conical shell, globose below, without any 

 markings. 



17- Helix Penolensis. Cox. Plate XI. Fig. 12, natural size 

 and magnified. M.C. 



Cox, Pro. Zool. Soc, 1867. 



Shell umbilicated, somewhat globosely-depressed, thin, very finely 

 striately ribbed, pale fleshy-horny, slightly shining ; spire broadly 

 conical, obtuse ; whorls 5, slightly convex, the last obtusely cari- 

 nated, not descending in front, above rather flattened near the 

 mouth, below more convex ; aperture angularly-broadly-lunate ; 

 peristome simple, thin, right margin very slightly curved, angular at 

 the keel, then arcuately curved, forming almost half a circle to the 

 slightly dilated and reflected callous columella, partially concealing 

 the small umbilicus. 



Diameter, greatest - 15 ; least 0"13 ; height 0"08 of an inch. 



Habitat. Penola, South Australia. Woods. 



A rather dull, small, horny, broadly semi-conical species, allied to H. 

 turriculata. 



