PLECTOPTLIS. — CAMiEJfA. 149 



in figs. 78 a-c, which are reproduced from the photograph kindly 

 supplied by Dr. Merrill. The following particulars are taken from 

 Dr. Bagg's notes wliich accompanied the photographs : " Beliv 

 repercussa, Gould. Burmah. Catalogue No,, 236 ; original No., 

 A 564. Major diameter, Ig inch [=28-5 millimetres]; minor 

 diameter, g inch [=22 millimetres] ; altitude, y\ inch [ = 8 milli- 

 metres]; greatest diameter of aperture, -^^ inch [ = 11 milli- 

 metres]." Gould states that the species was taken in the Mergui 

 Archipelago. 



Subfamily CAIM/ENIN^. 



Genus CAM^ENA (Albers), PlJshnj. 



Camcena, Albers, Die Heliceen, 1850, p. 8o, iu part; Martens, 

 Die Ileliceeu, ed. 2, 18G0, p. 165 ; Pilsbrv, Man. Couch, ser. 2, 

 vi, 1891, p. 197 ; viii, 1893, p. 265 ; ix, 1894, p. 101 ; ibid., Proc. 

 Acad. Nat. Sci. Philadelpliia, 1892, p. 398 (anatomy). 



Eucochlias, Theobald iu Nevill, Hand List, i, 1878, p. 81. 



TiPE, Helix cicatrkosa, Midler. 



llange. Southern China to Burma and southward. 



" Shell rather large, varying from depressed-globose or conoidal 

 to elevated and short pupiform ; dextral or sinistral, solid, yellow 

 or brown usually encircled by chestnut bands or lines. Surface 

 closely malleated or luruikled all over ; whorls about 5-5^, the 

 upper ones flattened, the last subglobose or carinated ; peristome 

 expanded or reflected, its ends not converging, colvtmellar margin 

 dilated over or partly over the narrow umbilicus. The columella 

 is rounded. The nuclear slhell is rather large (about one-fifth the 

 diameter of the shell), consisting of 2-2| whorls, its junction 

 with the aftergrowth marked by a (generally) distinct line. The 

 young shells are acutely carinated. 



" Animal having the sole very indisthicthj tripartite ; lateral 

 edges of foot ivith no trace of a foot-margin^ sides of foot granulated 

 in irregular pattern, the tail rather long, rounded above, ivith an 

 indistinct slighthj impressed longitudinal median line ; anteriorly 

 there are a few indistinct longitudinal grooves from mantle to 

 head. Mantle-margin with a small triangular right body -lappet, 

 and a longer left one. 



"Jaw arcuate, strong, typically with numerous, strong, sepa- 

 rated ribs. 



"Dentition: Central and lateral teeth having the inesocones only 

 developed, the cusps large, cutting-points small. Marginal teeth 

 with a long, oblique, bifid mesocone united at the base with 

 the ectocone, which becomes bifid on the outer teeth. 



" Genitalia : Vestibule short ; penis stout, continued above in 

 an e^nphallus, in ivhich the retractor and then the vas deferens is 

 inserted, and terminating in jJagellum ; penis corrugated within. 



