OF NEW SOUTH WALES. 85 



the subgenus as it is perforate, but he includes in it another 

 species Bulimus Angasianus, described by Pfeiffer in the Zool. 

 Soc. Proc, 1863, p. 528. I shall now proceed to notice the 

 remarks of the more important authors on B. Dufresnii. It may 

 be remarked in passing that Albers included his Garyodes as a 

 subgenus of Buliminus Ehrenberg, which was for ovate or ovately 

 conical thin land shells, whose ovate aperture did not reach or 

 did not exceed the whole length, with a peristome often expanded, 

 unequal margins and a narrow simple columella. 



Bvlimus Dufresnii was originally described by Leach, in the 

 Zoological Miscellany, vol. 2, page 153 to 154, and plate 120. 

 Dr. Leach, as most readers are aware, was a curator of the 

 British Museum, whose ability according to Swainson was equal 

 to his zeal, and who in trying to bring order into the vast 

 unweildy collection over which he was placed, fell a sacrifice to 

 incessant labour. In trying to arrange some of the curiosities 

 pouring in from the colonies, he described some of Vpur land 

 shells, and Bulimus Dufresnii was amongst them, I have not 

 seen his diagnosis, but it is only of consequence now to observe 

 that he classed the shell as a Helix. In 1827, when Messrs. 

 Quoy and Gaimard visited Tasmania in the Astrolabe,* they met 

 with this species and were able to make complete observations 

 on the shell and on the animal which they characterize thus : 

 " Helix, testa ovata, oleaformi, imperforata, longitrorsum tenuiter 

 striata anfractibus quinis, convexis, ultimo fasciis luteis et fuscis 

 cincto ; apertura ampla, subsemilunata, labro simplici." — (Shell 

 ovate olive shaped, imperforate reddish, finely striate lengthwise, 

 convex, whorls five, last zoned with yellow and brown bands ; 

 aperture ample, somewhat semilunar, labrum simple.) 



To this description they add the following remarks : " The 

 shell of this elegant species is of the size and shape of a little 

 olive, solid, quite oval with a large and obtuse spire, the whorls 

 of which are rounded, wide, the last larger than all the others 

 together and ventricose. The aperture is rather large and a 

 little semilunar ; the peristome is simple, somewhat thick, the 



* Voyage de l' Astrolabe, Zoologie vol. 2, p. 118 ; also, plate 10, figf. 1 to 3. 



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