194) HEUCID,€. 



Range. India and Farther India to China and Japan, Malay 

 Archipelago and PhiKppine Islands. 



"Shell more or less trochiform, umbilicated (or rarely imper- 

 forate), rather thin ; light colonred, plain or with a peripheral 

 line ; surface A\ith growth-lines only or densely spirally striate ,- 

 whorls Ah to 6, the last a little descending in front. Aperture 

 oval or angular-lunate, oblique, toothless or with ablunt coluraellar 

 fold ; lip expanded, broadly dilated at eolumellar insertion. 



" Animal (of G. japonica) with the foot very long and narroxVy 

 sole not distinctly tripartite ; upper surface finely and feebly 

 granular, back with a pair of dorsal grooves, no facial grooves ; 

 tail narrow, long, ivith a median Jongiiudinal groove above. 



" Jaw arcuate, with about 9 ribs denticulating the lower margin. 



" Eadula of the type usual in ground snails. Middle tooth with 

 mesocone only developed, shorter than basal plate, side-cusps 

 represented bv slight lateral extensions. Laterals similar but with 

 the cusp longer. Marginals with oblique, bifid inner cusp and an 

 ectocone. 



" Genital system having the penis long and twisted, ending in a 

 curved blind sack with corrugated inner walls ; epiphallus long, 

 bearing the retractor, terminating in a flagellum and the vas 

 deferens. Vo.gina extremely long, the spermatheca duct inserted 

 hiwh. Spermatheca oblong, on a stout duct, neither duct nor 

 bulb being bound to uterus. Xo dart sack or mucus glands." 

 iPilshry.) 



167. Ganesella acris, Benson. 



Helix acris, Beii^ou, A. M. K. H. ser. 3, iii, 1859, p. 387 ; Ilanley 



& Theobald, Conch. Ind. 1870, pi. 54, fig. G. 

 Helix {Trochumorphoides) acris, Godwin-Austen, J. A. S. B. xlv, 



1876, p. 312 ; Nevill, Hand List, i, 1878, p. 80. 

 Helix (Patida {Trochomorphu)) «cm, Tryon, Man. Concli. ser. 2. ill, 



1887, p. 74, pi. 14, fig. ]. 

 Ganesella acris, Pilsbry, Man. Conch, ser. 2, ix, 1894, p. 170. 

 Helix puellula (Benson, MS.), Theobald, J. A. S. B. xxiii, 1858, 



p. 319 (nom. nud.). 



Original description : — " Testa anguste umbilicata, elevato- 

 conica, trochiformi, oblique striatula, obsolete granulosa, subtus 

 minutissime spiraliter striata, albida ; spira elongato-conica, 

 lateribus planis, apice obtusiusculo, sutura leviter impressa ; 

 anfractibus 6| planulatis, ultimo vix descendente, ad peripheriam 

 acute carinato, basi planiusculo ; apertura valde obhqua, tetragono- 

 lunata, peristomate superne expansiusculo, subtus expanso, 

 reflexiusculo, margine columellari late angulato-reflexo, umbilicuiii 

 parti m celante. 



" Diam. maj. 10, min. 9, axis 9 mill." (Benson.) 

 Hah. India: Khasi Hills, Teria Ghat (Theobald, Godivin- 

 Aasfen); Naga Hills {Roberts); Dafla Hills (Godiuin- Austen). 



