4 TEOCHOMORPHID^. 



ultimo ad peripberiam acutissime carinato, subtus planiusculo ; 

 apertura oblique subquadrata, margine acuto. 



" Diam. maj. 12, inin. 10|, axis 4 mill." 



Hab. Sikkiiu : Darjeeling {Trotter, Stoliczha cj- Maimvarinr/). 

 India : Sinkip Island ( Wood-Maso7i) ; Calcutta (StoUczka 6f Nevill); 

 Sibsagar {Peal)-, Khasi Hills aud Dafla Hills, Assam {Godtvin- 

 Austen); Naga Hills {CJiennell) ; CIieiTapooujee, Assam (native 

 collector, m}'' collection). Burma : Arakan Hills {Kurz) ; Pegu 

 {Stoliczlca). Straits Settlements : Penang {Stoliczla) ; Salang 

 ( Weher) ; Kwala Aring, Kelautan, Malay Peninsula {Skeat Ex- 

 pedition). 



JS^evill records an unnamed variety of tbis species (collected by 

 Wood-Mason) from Soutb Andaman Island (Hand List, i, 1878, 

 p. 56). Lt.-Col. Godwin-Austen, who received a specimen from 

 the same collector, believes this to be an immature T. sanis (P. Z. 8. 

 1895, p. 449). 



2. Trochomorpha ceryx, Benson. 



Hclir ceryx, Benson, A.INI. N. H. ser. 3, iii, 18o9, p. 184 (reprint, 



P,l). 

 Helix ( Trochomorpha) caryx (eiT. tvp.)? Tryon, Man. Conch, ser. '1, 



iii, 1887, p. 75. 

 Trochomorpha caryx, Pilsbrv, Man. Conch, ser. 2, ix, 1893, p. 4. 



Original description: — " Testa pei^forata. turbinato-conica, tenui, 

 iiitidula, oblique striatula, lii'is pluribus remotis, striisque coii- 

 fertissimis interpositus spiralibus sculpta, transluceute, albida, 

 fasciis duabus latis fuscis, supei-iori prope suturam, altera infra 

 peripberiam, ornata ; spira attenuato-conica, apice obtusiusculo ; 

 anfractibus 4 convexiusculis, ultimo medio carinato ; apertura 

 obliqua, rotundata, peristomate tenui, acuto, margine columellari 

 verticali anguste reflexo, perforationem subtegente. 



" Diam. maj. 6, min. 5, axis 5 mill." 



Hah. Burma : Pie Thau, Tenasserim. 



3. Trochomorplia billeana, Hforcli. 



Naninn ( Videna) billeana, Murch, Jouru. Conchyl. 1872, p. .310; ibid., 



1876, p. 355. 

 Discus hilliana, Godwin-Austen, P. Z. S. 1895, p. 442. 



Original description : — " T. substantia dura, unicolor f usca, per- 

 spective umbilicata, depressa, subdiscoidea, acutissime carinata ; 

 striae iiicrementi obsoletse, linese spirales vix detegendse ; supra 

 parum elevata ; sutura linearis, expansa ; anfra. 5| planiusculi, 

 pone suturam (vel aciem) excavati, nltimus vix descendeus, basi 

 convexiusculus. Apertura rbombea, peristomate subobliquo, 

 margine subiucressato, labro obliquo, obsolete sinuato. 



" Diam. maj. 13, min. llj, axis 4 mill." 



Hah. Nicobar Islands: Nancowri, Great and Little Nicobar 

 {Reinhardt) ; Camorta {Roepstorff). 



The form collected at Camorta is distinguisbed by Morch as 



