292 PUPILLID.Ti. 



261. Bifidaria avanica, Benson. 



Pupa avanica, Benson, A. M. N. FT. ser. 3, xii, 1863, p. 428 ; Blanford, 

 J. A. S. B. xxxiv, 1865, p. 95 ; Pfeiffer, Mon. Helic. Viv. vi, 1868, 

 p. 335 ; Hanley & Theobald, Concb. lud. 1876, pi. 160, fig. 7 : 

 Sowerby, Conch. Icon. xx. 1876, Pupa, pi. 7, fig. 60 



Pupa [Vertigo) avanica, Nevill, Hand List, i, 1878, p. 197. 



Pupa {Papilla) avanica, PfeiflBr & Clessiu, Nomencl. Helic. Viv. 

 1881, p. 355. 



Original description : — " P. testa umbiiicata, ovato-oblonga, sub- 

 cylindrica, vix striatula, nitida, fusco-cornea, traiisliicente ; spira 

 oblonga, versus apicem obtusiusculiim couica, sutura valde irn- 

 pressa ; anfractibus 5^, subconvexis, ultimo antice asceudente ; 

 apertura ovata, superne obtnsa sexdeutata, plica parietali 1 

 duplicata, iutrante, deutibus columellaribus 2 prot'uudis et 

 palatalibus 3 profundis niuiiita ; peristomate undique expanse, 

 margiuibus tenuibus callo parietali lato juuctis. 



" Loug. 2g, diam. 1^ mill." (Benson.) 



Hah. Burma: A\a {Theohald) ; Mandalay [Blanford). 



The species is characterized by the very convex whorls and the 

 deep suture, resembling mimida iu that respect, but it is more 

 conoid and the last whorl becomes more contracted, while in 

 mimida the aperture is more rotundate. A specimen in the 

 Hungerford collection in the British Museum shows a slight 

 additional parietal denticle nearer the columella. A shell in the 

 Beddome collection has only two palatal plicae. 



262. Bifidaria mimula, Benson. 



Pupa minmla, Benson, A. M. N. H. ser. 2, xii, 1853, p. 95 ; Pfeifler, 

 Mon. Helic. Viv. iv, 1859, p. 676 ; Nevill, Ennm. Helic. Ceylon, 

 1871, p. 3 ; Hanley & Theobald, Conch. Ind. 1870, pi. 160, tig. 4 ; 

 Sowerby, Conch. Icon, xx, 1876, Pupa, pi. 7, tig. 61. 



Pupa [Leiosti/la) mimula, Pfeiffer, Malak. Eliitt. ii, 1850, p. 170. 



PujM ( Vertif/o) miinula, Nevill, Hand List, i, 1878, p. 198. 



Pupa [Vertifjo [Alaea)) mimida, Pfeiffer & Clessin, Nomencl. Helic. 

 Viv. 1881, p. 358. 



Original description: — "Testa riniata, ovato-oblonga, subcylin- 

 dracea, oblique tenuiter plicatula, pallide cornea, apice obtuse, 

 sutura prot'undiuscula ; anfractibus 5, couvexis, ultimo vix ascen- 

 dente ; apertura ovata, verticalis, 5-plicata, peristomate tenui, 

 expanso, marginibus callo tenui expanso juuctis, plica 1 intrante, 

 majuscula, parietali, 1 columellari, 1 basali profunda, 2 palatalibus 

 profundis. 



" Long. 2, diam. 1 mill." (Benson.) 



Hah. Ceylon : Cape Pedro (Layard). 



"Nearly allied to and somewhat larger than the Himalayan 

 P. huttoni, Nobis." (Benson.) 



A well-cbaracterized form. The parietal lamella is compressed 

 and largest of all, the columellar one being somewhat smaller, 

 while the three palatals are very minute. I have seen four 



