LEGRAND : ON A FEW TASMANIAN SHELLS. 95 



NOTES ON A FEW TASMANIAN LAND AND FRESH- 

 WATER SHELLS. 



By W. LEGRAND. 



There are two Helices — H. hhulcata and H. subangulata — 

 described and figured in ' Conchologia Iconica ' as Tasmanian, of 

 which nothing is known here. Mr. Gunn, on whose authority 

 they are given, can give no information respecting them. The 

 first, H. bisulcata, has some general resemblance to H. Launces- 

 tonensis, Reeve, of which it may possibly be a monstrosity ; but 

 the second has nothing Tasmanian about it, either in form or 

 coloring. The types of both are in the British Museum collec- 

 tion. 



Two British Helices have found their way here — H. ceilaria, 

 described by Cox as H. Sydneyensis, and H. costata, also described 

 by him as H. Alexandres ; the first also common to N. S. Wales 

 and New Zealand, the second I have only received from Sydney 

 and its neighbourhood. H. aspersa seems working its way here; 

 I have received it from Mauritius, and Auckland, New Zealand, 

 where it is very common, and Mr. Beddome has received it frorn 

 Victoria, so that its reaching here seems merely a question of time. 



Lunnaa Tasmanica, Woods, is very similar to, if not identical 

 with, the British species Z. stagnalis, and Ancylus Cumingiajiiis 

 is without question the finest spiecies of the genus. Several years 

 since I sent it to Mr. Hanley, who proposed for it a new subgenus 

 Legrandia, but as I found that Bourguignat had described it in 

 "Zoological Proceedings," and had erected a subgenus, Ancylas- 

 trum, for it, I have not made use of Mr. Hanley's name. We 

 have one or two other species of Ancylus, but there is nothing 

 peculiar about them. 



Our Vitrina Milligani (if it belongs to the genus, which 

 seems doubtful, as the animal has not been examined) was, until 

 the discovery of V. supe?-ba in Queensland, the finest species of 



