AUSTRALIAN LAND SHELLS- 89 



Shell ovately acuminate, thin, opaque, slightly shining, longitudinally 

 and irregulaiiy striated, whitish, yellowish, or reddish-horny, with 

 occasional pale streaks ; spire conical, acute, papillary ; whorls 3, 

 convex, last inflated ; the aperture slightly exceeding the spire, 

 scarcely oblique, irregularly and narrowly ovate, enamelled within 

 of general colour of shell ; peristome simple, thin, columella very 

 narrow, whitely callous. 



Length 0^45 ; breadth 0'23; aperture 0"25 long ; - 20 broad, of an inch. 



Habitat. Port Lincoln, Point Lowly, Wallaroo, Plinder's Bange, 

 Penola, S. Australia. Angas, Masters, Woods, fyc. 



The above description exhibits the ordinary and average appearance of 

 this shell, which, however, attains to greater dimensions. A large 

 white variety from Wallaroo is remarkable. Mr. Masters informed 

 me that this species, which he found in every place he visited in 

 South Australia, does not confine itself to the ground, but is equally 

 found on trees. 



315. Succinea scalarina. Pfr. 



Pfr., Pro. Zool. Soc., 1861, p. 28. 



Shell ovately-conical, "scalarina," rather solid, irregularly rugosely 

 plicated, slightly shining, reddish ; spire elongated, lather acute ; 

 whorls 3-^, convex, last slightly exceeding the spire, somewhat 

 attenuated at the base ; columella receding, nearly straight, forming 

 with the peristome an indistinct angle ; aperture oblique, oval, 

 scarcely angular above ; peristome simple, columellar margin slightly 

 reflected above. 



Diameter, greatest 0'51 ; least 030 ; height 021 of an inch. 



Habitat. King George's Sound, W. Australia. Angas. 



The preceding description has been entirely taken from Pfeiffer. 

 It will be seen by the measurements to be one of the largest Austra- 

 lian species. Scalarina may be translated as resembling a staircase 

 but conchological latin is not always to be found in a dictionary. 



216. Succinea strigillata. Adams and Angas. Plate XV. 

 Pig 5, 5 a. enlarged. M.O. 

 Adams and Angas, Pro. Zool. Soc, 1864, p. 38. 



Shell ovately conical, thin, semi-pellucid, pale horny yellow ; spire 

 scai'cely equalling the aperture, apex papillary ; whorls 3^-, strongly 

 convex, longitudinally, finely and minutely striated ; aperture oblong 

 ovate, left margin with a long thin callous deposit, right simple. 



Length 5 lines ; breadth 1\ lines. 



Habitat. Shark's Bay, N. W. Australia. Angas. 



The authors from whom the description has been taken remark that it 

 is somewhat allied to S. strigata, having the same papillary apex, 

 but differing in being smaller, thinner, of a lighter colour, and in the 

 whorls being less strongly rugose. 



217. Succinea arborea. Adams and Angas. 

 Adams and Angas, Pro. Zool. Soc, 1863, p. 523. 



Shell oblong ovate ; spire shorter than the aperture, apex papillary, 

 white, golden horny, pellucid ; whorls 3, strongly convex, longi- 



