422 Lt.-Col. II. II. Godwin-Austen on 



each of which has a fine grey seta ; their whole surface 

 densely and very minutely sculptured. 



Legs elongate, yet not very slender ; anterior tarsi not 

 ditated. Palpi stout, penultimate articulation straight ex- 

 ternally, slightly rounded inwardly. 



From T. latipennis, Sharp, the thoracic angles at once 

 differentiate it. It is most nearly allied to T. oreobius, hut 

 the broader form, evidently more transverse thorax, with 

 more rounded anterior angles and more distinct lateral 

 margins, distinguish it therefrom. The head also differs; in 

 T. oreobius the frontal impressions are most obviously 

 separated by the apparently raised central space, but in 

 T. coriaceus the space between the side and each fovea 

 appears most distinct. 



? . Length §• ; breadth § line. 

 Otira Gorge. One female, discovered by Mr. J. II. Lewis. 



Drurv, Auckland, N.Z., 

 26th May, 1908. 



L. — On the Animals of Genera and Species of Masco rent' 

 Land-Mollusca belonging to the Family Zonitidae, collected 

 by Monsieur E. Dupont. By Lt.-Col. H. H. Godwin- 

 Austen, F.R.S. &c. 



[Plates IX. -XL] 



On commencing this paper I must convey my best thanks to 

 Monsieur E. Dupont for collecting so carefully and sending 

 me so much valuable material to examine and describe. I 

 have also to thank Mr. John Ponsonby for supplying me 

 with some species obtained in the first instance by the same 

 conchologist. As the first consignment was received as far 

 back as 1906, I have to regret the long delay in its publi- 

 cation. "With regard to the animals of Mascarene laud- 

 shells I find not many have been described. 



Messrs. Thomas Bland and W. G. Binney, in the ' Pro- 

 ceedings of the Academy of Natural Sciences of Philadelphia/ 

 vol. xxvi. 1874, p. 47, describe the anatomy of some 

 Mauritian land-shells belonging to the genus Gonospira, 

 and of others with which I am more interested belonging to 

 the Zonitidae and placed in Gray's genus Nanina. " Such 

 are N. calduelli, Bs. ; N. raivsonis, Barclay, = semicerina, 

 Morelet ; A 7 , argent ea, Rve. ; N. implicata, Xevill ; N. stylo* 

 don, Pfr., put in Helix (Erepta) by Von Martens," 



