PLECTOPYLI«. 99 



93. Plectopylis leiophis, Benson. 



Helix (Plectopylis) leiophis, Benson, A. M. N. H. ser. 3, v, 1860, 

 p. 246 ; Blanford, J. A. S. B. xxxiv, 1865, p. 94 ; Godwin-Austen, 

 P. Z.S. 1874, pi. 74, tig. 2 (shell and armature) ; Tr^-on, Struct. 

 Couch, iii, 1884, p. 33, pi. 94, iig. 25. 



Helix (Atopa (Plectojnjlis)) leiophis, Tryon, Man. Couch, ser. 2, iii, 

 1887, p. 163, pi. 35, Hgs. 88, 89. 



Plectopylis leiophis, Pilsbr}', Man. Conch, ser. 2, ix, 1894, p. 145 ; Gude, 

 Scieuce Gossip, N. s. v, 1898, p. 10, tig. 76 (shell and armature). 



Plectojnjlis (Chersaecia) leiophis, Gude, op. cit. vi, 1899, p. 148. 



Helix refiuja, PfeifFer in Philippi, Abb. Beschr. Conchyl. iii, 1847, 

 Helix, p. 2, pi. 10, fig. 4 ; ibid., Conch.-Cab., Ileliceen, i, 1848, 

 p. 383, pi. 66, tigs. 21-23 ; Eeeve, Conch. Icon, vii, 1852, pi. 82, 

 tig. 436; Theobald, J. A. S. B. xxvi, 1857, p. 249; Hanley & 

 Theobald, Conch. Ind. 1870, pi. 13, tig. 8 (non Gould). 



Helix {Plectopylis) pseudophis (Blanford), Godwin- Austen, P. Z. S. 

 1874, p. 610, pi. 74, fig. 3 (shell and armature). 



Helix {Atopa {Plectopylis)) pseudophis, Tryon, Man. Conch, ser. 2, iii, 

 1887, p. 162, pi. 35,' iigs. 80, 81. 



Plectopylis jjseudophis, Pilsbry, Man. Conch, ser. 2, ix, 1894, p. 146; 

 Gude, Scieuce Gossip, n. 8. iv, 1897, p. 170, tig. 62 (shell and 

 armature) ; v, 1898, p. 17, fig. 77 (armature). 



Plectopi/lis leiophis {= pseudophis), Gude, Proc. Malac. Soc. London, 

 viii, 1908, p. 88. 



Original description :— " Testa sinistrorsa, late et profuude 

 umbilicata, subdiscoidea, superne planata, interdum omuiuo plana 

 vix solidula, oblique et arcuatira rugoso-striata, lineis nonuullis 

 spiralibus decussata, sub epidermide scabra, f usco-cornea, albida ; 

 spirae apiee vix elevatiusculo Itevigato, sutura inipressa ; anfractibus 

 5g-6| angustis, ultimo supra peripheriam angulato, aiitice valde 

 deflexo, basi rotuudata, apertura valde obliqua subhorizontali, 

 lunari, peristomate retiexo albido, marginibus lamina sinuosa 

 elevata, medio lamellam profunde iutranteni, usque ad januam 

 attingeutem emittente junctis. Janua pliciformi fauciali prima 

 I'emota ; lamina 1 parietali verticali simplici forti lamellam apei*- 

 turalem valde elongatam superne emittente, infra earn lamellis 

 duabus brevibus (a lamina spatio brevi separatis) muuita ; plicis 

 (> palatalibus intrantibus, quinta robustiore obliqua. 



"Diam. major 11-14, minor 8-11-5, alt. 3-f) mill." (Benson.) 



Hah. Burma: Kwadouk, Tliyet-Myo (Benson); Akoutoung 

 {Blanford). 



Lt."-Col. Godwin-Austen stated (P. Z. S. 1875, p. 44) that 

 P. leiophis was identical with Gould's Helix refuj/a, basing this 

 identification on the specimens in the British Museum, so labelled 

 by Cuming. Upon compai-ing the latter with Benson's type 

 specimens, obligingly lent to me in 1898 by Dr. S. ¥. Harmer, 

 then in charge of the University Museum of Zoology, Cambridge, 

 I found they were indeed identical, but tlie specimens in the 

 British Museum had been wrongly identified by Cuming and 

 Pfeiffer. They formed the subject of the illustrations purporting 

 to represent ff. refuga in Pliilippi's work, quoted above, in 

 Keeve's Conch. Icon., and in Conch.-Cab. All these figures 

 must, therefore, be referred to P. leiophis. 



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