APATETES. GANESELLA. 193 



G-enus APATETES,* g. n. 

 Shell conoid, rather thin, carinate, covered perforate. 



166. Apatetes bourdilloni, Theobald. 



Corasia bourdillonii, Theobald, J. A. S. B. xlv, 1876, p. 185, pi 15, 



fig. 3. 



Nanina bourdilloni, Nevill, Hand List, i, 1878, p. 30. 

 Cochlostyla (Corasia) bourdillonii, Pilsbry, Man. Conch, ser. 2, vii, 



1891, p. 127, pi. 33, fig. 55. 



Original description : " Testa conoidea, obtecto-perforata, 

 carinata, tenui, polita, albida, translucente, sub epiderinide pallide 

 straminea et decidua lineis exilissimis flexuosis spiraliter ornata. 

 Anfractibus 4J, celeriter crescentibus, ad apicem mainmillatum 

 paulo convexis, sed ultimo supra planato et circa umbilicum paulo 

 inflate. Apertura magna subquadrata ; marginibus simplicibus 

 callo tenuissimo junctis. 



"Diam. maj.25'4, min. 19'5, alt. 14'8, aperturae alt. 16, ejusdem 

 lat. 14 mm." (Theobald.) 



Hob. India : Trevandrtun, prov. Travancore (Theobald). 



As Prof. Pilsbry correctly observes : " judging from the sharp lip, 

 as well as the locality, this is no Corasia. It may prove to be a 

 Nanina" Pending further information he, however, considered, it 

 advisable to retain it there, although in vol. ix of the Manual of 

 Conchology he does not include it in the genus. Its position is 

 very uncertain, and it is not at all improbable that the thin, 

 sharp, peristome is an indication that the specimens are not full- 

 grown. I was at first inclined to regard it as a member of the 

 genus Euplecta^ but the elevated conoid spire and its superficial, 

 incised, close, wavy spirals so totally different from the sharply 

 cut, decussating spirals to be observed in that genus are features 

 which do not, I consider, permit its inclusion there. The texture 

 of the shell rather approaches that exhibited by the subgenus 

 Beddomea and I, therefore, propose to place this new genus 

 provisionally next to Amphidromus. 



Genus GANESELLA, Blanford. 



Ganesella, Blanford, A. M. N. H. ser. 3, xi, 1863, p. 86 ; Pilsbry, 



Man. Conch, ser. 2, ix, 1894, p. 168, pi. 60, figs. 1,2, frontispiece, 



figs. 1, 2 (anatomy) (G. japonica). 

 Satsuma, A. Adams, A. M. N. H. ser. 4, i, 1868, p. 463 ; Kobelt in 



Semper, Reisen Philipp. x, 1906, p. 53. 

 Trochomorphoides, Nevill, Hand List, i, 1878, p. 80. 

 Fniticotrochus, Kobelt, Fauna Moll. Extramar. Japoniae, 1879, 



p. 48. 



TYPE, Helix capitium, Benson. 



* aTrarqrTjs, a deceiver. 



