70 AUSTRALIAN LAND SUELLS. 



Habitat. Clarence Heads, N. S. W. Generally distributed throughout 

 Queensland and its islands, from Brisbane to Cape York. Found 

 generally in the isles of the S. W. Pacific, and has been introduced 

 to S} T dney with plants from Aneiteum. MacGillivray. 



Varies considerably in size, and slightly in acuteness of the spire, and 

 also in the distinctness of the longitudinal stria). 



The specimens formerly described by me as B. Walli, I can now only 

 look upon as a variety of this species of exaggerated length. 



XXXII. SECTION CARYODES. Pfr. Vers. p. 157. 



* B. Dufresni. * B. Angasianus. 



173. Bulimus Dufresni. Leach. Plate XIII. Pig. 12. M.C. 

 Leach, Miscell. Zool., p. 153. PI. CXX. 



Helix Dufresni. Fer., Hist. PI. CXIII. Pig. 13. 



Shell imperforate, ovately-oblong, rather solid, shining, and almost 

 smooth, although faintly marked with longitudinal striae and granu- 

 lations, chestnut brown, encircled by yellow and blackish bands; 

 spire obtuse, suture crenulated below ; whorls 5, slightly convex, 

 last nearly equalling the spire ; aperture oval, very slightly oblique, 

 bluish within ; peristome simple, rounded on the edge, frequently 

 moderately thickened, right and basal margins regularly and mode- 

 rately arcuate, columellar margin partially twisted in the centre, 

 and above slightly expanded and adherent. 



Length 1*60 ; breadth 0'80 ; aperture - 80 long ; 0*50 wide, of an inch. 



Habitat. Tasmania. Widely distributed and very abundant. Cox. 



A handsome and variable species. One median spiral band is generally 

 present, usually flanked with two paler ones. Sometimes there are 

 longitudinal markings in addition. Some stunted varieties do not 

 exceed 8-10ths of an inch in length. 



174. Bulimus Angasianus. Pfr. Plate XIII. Pig. 2. M.O. 

 Pfr., Pro. Zool. Soc, p. 528, 1863. 



Shell imperforate, rather broadly and conically ovate, thin, trans- 

 lucent, shining, very closely and smoothly striately ribbed, the striae 

 very conspicuous at the sutures, decussated with spiral lines, 

 especially above, pale horny, reddish-brown, with two bright yellow 

 bands generally margined with brown lines ; spire short, conical, 

 obtuse, apex granular ; whorls 4, convex, last longer than the spire, 

 rounded at the base ; aperture angularly oval, within pearly, and 

 showing the two bands white instead of yellow ; peristome simple, 

 regular, thin, columellar margin whitely callous, slightly expanded, 

 and outwardly reflected, but sometimes leaving a fissure leading 

 to the covered umbilicus. 



Length 0-90; breadth 050 ; aperture - 50 long ; - 35 broad, of an inch. 



Habitat. Port Lincoln, S. Australia, on an open heath. Angas. 



Among the numerous specimens collected by Mr. Masters of this 

 species a striking variety occurs. It is of a beautiful bright yellow 

 colour, with indications of a single reddish spiral line. 



