386 FERUSSACID.B. 



immature form of the former, being considerably broader at the 

 base, a feature which would be emphasized if another whorl were 

 added. The later whorls, moreover, increase more rapidly than 

 in vadalica, which is more conoid, with straiglit sides to the 

 spire. 



352. Glessula perrotteti, Pfeifer. 



Ackatuitt perroteti, Pfeiffer, Revue Zool. 1842, p. 305; ibid., Symb. 



Hist. Helic. ii, 1842, p. 59. 

 Glondina perroteti, Philippi, Abb. Bescbr. Conchy], i, 1844, p. 135, 



Gkaidina, pi. 1, fig. 12. 

 Achatiyia perrotteti^ Pfeiffer, Mon. Helic. Viv. ii, 1848, p. 260; 



ibid., Concb.-Cab., Bulimus, 1800, p. 324, pi. 26, figs. 16, 17. 

 Achatina (Subulina) perrotteti, Albers, Die Heliceen, 1850, p. 195. 

 Oleacina {Electra) }yerrotteti^ Adams, Gen. Rec. Moll. ii. 1855, 



p. 106. 

 Achntina (Electra) 2^^>'>''^ii<^ih Pfeiffer, Malak. Blatt. ii, 1856, 



p. 168. 

 Cionella (Glessula) i^erroteti, von Martens, Die Heliceen, ed. 2, 



1860, p. 254. 

 Stenof/yra (Glessula) j)eroftett, Nevill, Hand List, i, 1878, p. 168, 



ibid., J. A. S. B. 1, 1881, p. 137, pi. 5, figs. 17, 17 o. 

 Glessula perrotteti, Pfeiffer & Clessin, Noiuencl. Helic. Yiv. 1881, 



p. 330; Beddome. Proc. Malac. See. London, vii, 1906, p. 162 ; 



Pilsbry, Man. Conch, ser. 2, xx, 1909, p. 65, pi. 9, figs. 9, 10. 



Original description : — " Testa elongato-conica, apice obtusius- 

 cula, nitide cornea, diaphaua ; sutura profunda ; anfractibus con- 

 vexiusculis, ultimo tertiam longitudinis partem sequante ; columella 

 valde incurvata, abrupte truncata, apertura ovali. 



" Long. 25, diam. 11 mill." {Pfeiffer.) 



Hah. India : Nilgiris (Perrottd) ; JSTeddoowutton, Mlgiris 

 {Blanford) ; Pulney Hills (Beddome). 



353. Glessula prselustris, Benson. 



Achatina prcclustris, Benson, A. M. N. H. ser. 3, v, 1860, p. 462 ; 



Pfeiffer, Mon. Helic. Viv. vi, 1868, p. 221. 

 Achatina (Electra) pradustris, Hanley & Theobald, Concb. Ind. 



1870, pi. 17, fig. 6; var. fig. 7. 

 Stenoqyra (Glessula) praelustris, Nevill, Hand List, i, 1878, 



p. i71. 

 Glessula prcelustris, Pfeiffer & Clessin, Nomencl. Helic. Viv. 



1881, p. 329 ; Jousseaume, M(5m. Soc. Zool. France, vii, 1894, 



p. 293 ; Beddome, Proc. Malac. Soc. London, vii, 1906, p. 162 ; 



Pilsbry, Man. Conch, ser. 2, xx, 1909, p. 68, pi. 9, figs. 15, 16 ; 



Anuandale, Rec. Indian Mus. vii, 1912, p. 33. 



Orif/tnal description : — •' Testa ovato-oblonga, pei'tenui, fragili, 

 irregulariter plicato-striata, nitente, pallide luteo-cornea ; spira 

 pyramidata, apice obtuse, sutura profundiuscula, subcrenulata ; 

 anfractibus 8| convexiusculis, superua prope suturam tumidius- 

 culis ; ultimo 5 testse superante, subinflato ; apertura verticali. 



