160 HELICIDiE. 



Icou. Tii. 1852, pi. 84, fig. 460; Pfeifter, Concb.-Cab., Helix, ii, 



1853, p. 92, pi. 82, figs. 15-17 ; Hauley & Theobald, Conch. lud. 



1870, pi. 55, figs. G, 7. 

 Heli.r {Trachiii) nilcKjirica, yon Martens, Die Heliceen, ed. 2,1860, 



p. 160. 

 Helix (Plcmispira) nilarjirica, Nevill, Hand List, i, 1878, p. 77. 

 Helix {Plectotropis {Trachict)) niUu/herica, Tryon, Man. Conch. 



ser. 2, iv, 1888, p. 65, pi. 14, figs. 70, 71. 

 Planispira (Trachia) nilagirica, Pilsbry, Man. Conch, ser. 2, ix, 



1894, p. 116. 



Original description: — "T. late umbilicata, depressa, discoidea, 

 striata, coriieo-albida, linea rufa supra peripberiam cincta ; spira 

 planiuscula ; anfr. 5 convexiusculi, lente accrescentes, ultiinus 

 antice abrupte deflexus : umbilicus latissimus, anfractum penulti- 

 nium late monstrans, medio augustus, pervius ; apertura parAa, 

 borizontalis. rotuudato-ovalis ; perist. coutinuum, album, sub- 

 labiatum, reflexiim." (Pfeifcr.) 



Diam. maj. 10-75-14-5, min. 8-75-12, alt. 3-5-5-5 mill. 



Bab. India : Nilgiries (Blanford) ; Trichiuopolj' (Blanford). 



A distinct and well marked species, the convolute character ofc" 

 the underside of the shell strongly resembling many of the North- 

 American species of Poh/gyra, such as P. cereolns. The supra- 

 peripheral band mentioned in the original diagnosis is frequently 

 absent, and many specimens instead have the latter portion of the 

 last -whorl dark fulvous, while others again exhibit transverse, 

 alternately light and dark bands, or they may be uniformly pale 

 ochraceous. The shell is densely, minutely granulated under 

 the deciduous cuticle, which, wheu fresh, bears very short, stiff, 

 densely crowded hairs, neither of which fact is referred to in the 

 diagnosis. 



131. Planispira nagporensis, Pftiffer. 



Helix nagporensis, PfeifFer, P. Z. S. 1860, p. 135 : Malak. ibid., 



Blatt. vii (1860), 1861, p. 235. 

 Helix {Patula (Patidastra)) ncu/jjorensis, l*feifler& Clessin, Nomencl. 



Helic. Viv. 1881, p. 90. 



Original description : — " T. latLssime umbilicata, depressa, 

 tenuiuscula, oblique striata, opaca, carneo-albida ; spira medio vix 



Fi"-. 79. — Planispira iiagporensis. 



prominula ; anfr. 4 vix convexiusculi, ultimas subtus vix latior, 

 antice deflexus et subtus subconsti-ictus ; apertura perobliqua, 



