and on some new East Indian Helicidse. 349 



culis, ultimo ad periphseriam subcarinato, subtus convexiusculo ; 

 apertura obliqua, late lunari, intus remote albido-sublabiata, peri- 

 stomate simplici, acuto, margine columellari breviter subreflexo. 



Diam. major 19, minor 16, axis 10 mill. 



Ilnh. ad Darjiling. Teste R. Trotter. 



The sculpture of this species is peculiarly delicate and beau- 

 tiful. The labiation near the aperture forms exteriorly a yellow 

 band similar to those observable in several other Himalayan 

 Helices, and in the species //. verticillus and Smyrnensis of 

 Southern Europe and Asia Minor. 



3. Helix Castra, nobis, n. s. 



Testa mediocriter umbilicata, depressissimo-conica, tenui, exiliter ob- 

 lique aeuto-striatula, cornea ; spira ad apicem obtusa, suturis mar- 

 ginatis. Anfractibus 5^ planulatis, ultimo ad peripbseriam acu- 

 tissime carinato, subtus planiusculo ; apertura oblique subquatlrata, 

 margine acuto. 



Diam. major 12, minor 10^, axis 4 mill. 



Hah. ad Darjiling. Teste R. Trotter. 



This shell, approaching in form to H. Cyathus, Pfr., figured 

 in the ^Conchologia Iconica' at no. 139, bears much resem- 

 blance to the Javanese species H. Zollingeri of the same author, 

 represented in ' Conchologia Iconica * at no. 605, but differs in 

 sculpture, marginate suture, less obtuse spire, and colour. 



4. Helix Lychnia, nobis, n. s. 



Testa imperforata, valde depresso-conica, tenui, translucente, polita, 

 fusca ; spira conica, obtusiuscula, suturis marginatis. Anfrac- 

 tibus 6i angustis, planiusculis, ultimo vix latiori, ad peripbseriam 

 acute comprcsso- carinato, subtus convexiusculo, medio excavato ; 

 apertura vix obliqua, angusta, securiformi, peristomate simplici 

 acuto, margine inferiori arcuato, versus periomi)halum leviter in- 

 crassato. 



Diam. major vix 12, minor 11, axis 5imill. 



Hah. in Insula Sincaporc. Teste Dr. J. F. Bacon. 



This pretty species, remarkable among the depressed conic 

 Ibrms for its imperforate base and closely wound spire, was found 

 by Dr. J. F. Bacon at Sincaporc, where it does not appear to be 

 scarce. A small specimen of H. Janus, Chemnitz, accompanied 

 H. Lychnia from the same locality, to which it had not pre- 

 viously been assigned, the recorded habitat being Mount Ophir, 

 near Malacca. 



5. Helix lubrica, nobis, u. s. 



Testa perforata, depressa, obsolete radiato-striata, politissima, luteo- 

 fulvescente vel olivacea ; spira plauiuscula, apice vix prominulo, 



