] 4 ENDODONTIDjE. 



spirally striate only ; sutures deeply impressed : umbilicus very 

 narrow ; peristome simple ; apertiu*e narrow subluuate. 



'• Diam. maj. l-o mm. ; alt. 1*75 mm.'*' 



Hah. Ceylon : L"da Pussellawa. 



Mr. Preston compares this species with T. Jiisjrida, Sykes, from 

 which it differs by its much smaller size and more graceful form, 

 while the spiral and .ircuate transverse striae, which characterize 

 his shell, are lacking in the latter. 



Genus GLYPTAULAX *, g. n. 



Shell discoid, umbilicated, \\ith close revolving line and sulca- 

 tions, decussated by oblique costul^e. Anatomy unknown. 

 Type, Helix ai-tijiciosa, Benson. 

 Eange. Burma. 



23 a. Glyptaulax artificiosa, Benson. 



Helix artificiosa, Benson, A. M N. IT. ser. 2, xviii, 1856, p. 249 : 

 Pfeiffer, Novit. Conch, ser. 1, i, ISOO, p. 131, pi. 36, figs. 8-10 ; 

 Ihuiley & Theobald, Conch. Tnd. 1870, pi. 55. tig. 3. 



Heli.v [Patiila (Punctum)) artificiosa, Trvou, 31aii. Concb. ser. 2, 

 iii, 1887, p. 33, pi. 7, fig. 82. 



Xanina artificiosa, Nevill, Hand List, i, 1878, p. 54. 



Original description: — "Testa anguste umbilicata, orbiculata, 

 discoidea, nitidiuscula, superne liris confertis sulcisque profundis 

 spiraiibus, costulisque confertis obliquis decussata, subtus liris 

 remotioribus striisque radiatis ornata, pallide cornea; spira planu- 

 lata (interdum omnino planata), apice vix elevato, ohtuso ; sutura 

 profunda; anfractibus 6^ convexiuscuh, lente accrescentes, ultimu.s 

 superne subangulatus, subtus convexus ; apertura vix obliqua, 

 subanguste lunaris ; peristomate acuto. leviter sinuato, margine 

 dextro arcuato, crenulato, columellari brevissimo et basali sub- 

 stricto leviter reflexis. 



"Diam. maj. 14. miu. 12, ait. 5 mill." 



Hab. Burma: Teuassevim (IVieohald). 



The species is unlike any other known to us and its .systematic 

 position is doubtful. The anatomy is unknown. It is placed 

 provisionally in the subfamily Thysauotinie between Thijsanota 

 and Philalanlca. 



Genus PHILALANKA, Godwin-Austen. 



Philalanka, Godwin-Austen, Proc. Malac. Soc. London, iii, 1898, 

 p. 11 (as subgenus of Endodonta) ; ibid., Moll. India, ii, 1907, 

 p. 190. 



Original description: — "Shell small, many-whorled, pyramidal 

 or trochiform with a single liration, unicoloured. Jaw composed 

 of numerous squarish plates. Basal plates of teeth of the radula 



* ■jXi'-rw curved, and ai'XoS fLirrow. 



