82 AUSTRALIAN LAND SHELLS. 



pressed, columella nearly straight, with one or two small callosities 

 inside, one like a fold, angiriar above, then concave, and on centre 

 of the apertural wall a prominent plate projects and extends spirally 

 out of sight. 

 Length - 7(J ; width 0-16 ; aperture 17 long ; broad (HI of an inch. 



Habitat. Port Molie, Queensland. MacGillivray. Miriam Yale, Port 

 Curtis, Queensland. Blackman. 



The description applies to specimens from the latter locality, with fully 

 formed mouths; I cannot find that the " three folded columella" of 

 Forbes' original description agrees with mine, unless he has in- 

 tended the plait on the body whorl to be the superior on the colu- 

 mella, and by misprint inferior has been given. 



Genus 



VITRINA. Draparnaud. 



Shell imperforate, very thin, pellucid, hyaline, depressed ; 

 spire short; whorls 2 to 3, rapidly enlarging; aperture 

 large, lunate or rounded, columellar margin slightly in- 

 flected ; peristome thin, often membranous. 



Animal elongated, too large for complete retraction into 

 the shell ; mantle produced, transversely rugose, covering 

 the front edge of the last whorl and part of the spire of the 

 shell, and furnished with a posterior lobe on the right side. 

 Mandibles arcuate, rostrate ; lingual teeth (of type, Vitrina 

 Draparnaudz), 100 rows of 75 each; marginal teeth with 

 a single, long, recurved apex. Thomson. 



I may here remark that the animals of all the Australian 

 Vitrince have more the characters of Arion, the tail being 

 longer, more abruptly truncated, the mantle more de- 

 veloped and possessing a caudal gland. 



* V. Milligani. * V. Freycineti. * V. leucospira. 



* V. Verreauxi. * V. castanea. * V. robusta. 



* V. nigra. * V. Strangei. * V. hyalina. 



* V. virens. * V. inflata. * V. Mastersi. 



* V. MacGillivrayi. * V. megastoma. * V. Australis. 



198. Vitrina Milligani. Pfr. Plate XIV. Pig. 2, 2 a. M.O. 

 Pfr., Pro. Zool. Soc, 1852, p. 56. 



Shell depressly-ovate, rather solid, polished, very glossy, translucent, 

 olive black ; spire convex ; whorls 3, 2nd convex, last depressly 

 rounded ; aperture more oblique than diagonal, lunately rounded- 



