ARIOPHANTA. 35 



II. Dextrorse, (Cbyptozona, Xestijja, or Nilgiuia.) 



A. Colour uniform or nearly so ; no sjnral hands of colour. 



a. Decussated. 



a'. Badxda with hroad hand of median teeth. Left dorsal lohe 

 undivided. 



61. Ariophanta semirug-ata, Beck (Galaxis), Ind. p. 42 (1837); 

 Pfr. (Helix) Man. Jlet. i, 1847, p. 40; id. t. c. vii, p. 75 ; H. S^- T. 

 (ilelix) (J. 1. 1870, pi. 59, fig. 4; ]^ev. Hand-l. i, 1878, p. 51. 

 Helix globulus, Mart. Sf Chemn. Si/st. Conch.- Cah. ix, 2, p. 126, 

 pi. 130, tigs. 1159-60 (1786); jiec Miill. Hist. Ver. ii, p. 68 

 (1774). 

 Galaxis trauquebarica, Fahr. MS.. 1876, Beck, I. c. no descr. ; Pfr. 

 (Helix) Mon. llel i, 1847, p. 41 ; id. t. c. vii, p. 75 ; 8tol. (Helix) 

 J. A. S. B. xli, 1872, 2, p. 212 (footuote); Godwi?i-Ansfen (Nilgiria), 

 Mol. Ind. ii, p. 78, pi. 81 [figs. 3-3 d, animal, genitalia, with 

 spermatopbore ; pi. 82, fig. 3, radula (1898)] ; id. t. c. ii, p. 135 

 (1899) [pi. 94, tigs. 5-5 e, spermatophore], pi. 98 [figs. 2-2 b, 

 anatomy and sculpture]. 



Shell perforate, globose or globosely conoid to depressedly 

 globose, pale brownish to whitish, finely decussated above with 

 oblique striae and spiral impressed lines, the latter sometimes 

 faint or wanting ; smoother below ; suture very little impressed ; 



Fig. 21. — AriopJiania scmirit(/afa. }. 



whorls 5-6, slightly convex, the last large and swollen, generally 

 descending near tbe mouth ; apertui'e roundly or ovally lunate ; 

 peristome tliin, reflected near the umbilicus. 



Mapr diam. J53, min. 28, height 28 mm. 



Hai). The greater part of the Peninsula of India from the 

 Nerbudda and Son southwards, Cutch {StoHcz/ca); also in Northern 

 Ceylon. Common in open country. 



A very variable shell, the spire especially varying in elevation. 

 An average specimen (figured) from Trichinopoly gives the 

 measurements above quoted ; others from the same place measure 

 37, 33, 34, and 33, 30, and 35 mm. Another measures 30, 25, 24. 



d2 



