170 HELICID^. 



hair-scars only in places, the last whorl being totally devoid of 

 them. This appears to be the case when the shell is considerably 

 worn and has completely lost the periostracum. I have seen 

 unhanded specimens in Major Peile's collection. 



142. Chloritis helferi, Benson. 



Helix helferi, Beuson, A. M.N. H. ser. 3, vi, 1860, p. 191 ; Hanlev & 



Theobald, Conch. Ind. 1870, pi. 29, figs. 8, 9. 

 Helix {Trachiu) helferi, Pfeiffer & Clessin, Nomencl. Helic. Viv. 



1881, p. 181. 

 Helix [Plectotropis [Trachiu)) helferi, Trj'on, Mau. Conch, ser. 2, 



iv, 1888, p. 63, pi. 14, figs. 59, 60. 

 rianispira (Trachia) helferi, Pilsbry, Man. Conch, ser. 2, ix, 1894, 



p. 116. 

 Plimisjnra helferi, Godwin-Austen, P. Z. S. 1805, pp. 442, 449. 



Original description : — " Testa profunda et anguste perspective 

 umbilicata, orbiculata, siibdepressa, oblique striatula, foveolis 

 conspersa, sub epidermide rufescente, sparsim hispida, albida, 

 fascia rufa angusta superne ornata ; spira depresse conoidea, 

 apice valde obtuso, sutura impressa, submarginata ; anfractibus 

 4| convexiiisculis, angustis, leiite accrescentibus, ultimo antice 

 descendeute, supra peripheriam obsolete angulato, circa nrabilicum 

 subito excavatum compressiusculo ; apertura obliqua, transverse 

 ovato-lunata, peristomate undique expanso, raarginibus approxi- 

 matis, callo tenui junctis. 



" Diam. major V2, minor 10, axis 6 mill." (Benson.) 



Bab. Andaman Islands. 



This species was stated by Benson to be nearly related to 

 asperella and fallaciosa, but in build and texture it certainly 

 approximates much more to C. gahata. Two specimens in my 

 collection, one of which is efasciate, have the periostracum in a 

 well preserved condition, and show the rather sparsely distributed 

 hairs detected by Benson, " on the portion of the caducous 

 epidermis remaining in the single specimen received for examina- 

 tion." Lt.-Col. Godwin-Austen records (l. c.) the finding in 

 de Roepstorff's collection from the Xicobars of a young shell of 

 this species, but he considers this habitat I'equires confirmation, 

 as it might have got among them accidentally. 



143. Chloritis leithi, Giule. 



Chloritis {Trichoehloritis) leithi, Gude, Proc. Malac. See. London, 

 xi, 1914, p. 53, text-figure. 



Original description: — "Shell rather widely umbilicated, de- 

 pressed-conoid, thin, transparent, corneous, with a narrow chestnut 

 supra-peripheral band, finely plicate-striate, somewhat sparsely 

 covered with soft hairs placed in pits and arranged in quincunx. 

 Spire low, apex sunken, suture deep. Whorls 4, convex above, 

 tumid below, increasing rapidly, the last exceeding in width the 

 total of the other three, dilated at the mouth, not constricted 



