180 HELICIDjE. 



Hob. Burma : Tavoy (Mason) ; Mergui forest and King Island 

 (Anderson). Salanga (Weber) ; Penang (Martens) ; Saigoon (Mus. 

 Owning, Semper). 



Both dextral and sinistral shells occur, but the former appear to 

 be more common than the latter. 



153. AmphicLronras moniliferus, Gould. 



Bulimus moniliferus, Gould, Proc. Boston Soc. Nat. Hist, ii, 1846, 



p. 99 ; ibid., Otia Conch. 1862, p. 198. 

 Bulimus (Amphidromus) moniliferus, Pfeiffer, Malak. Blatt. ii, 1856, 



p. 147 ; von Martens, Die Heliceen, ed. 2, 1860, p. 185. 

 Amphidromus moniliferus, Nevill, Hand List, i, 1878, p. 126; 



Fulton, A. M. N. H. ser. 6, xvii, 1896, p. 90, pi. 7, fig. 9; 



Pilsbry, Man. Conch, ser. 2, xiii, 1900, p. 179, pi. 62, figs. 73, 74. 

 Bulimus theobaldianus, Benson, A. M. N. H. ser. 2, xix, 1857, 



p. 329 ; Hanley & Theobald, Conch. Ind. 1870, pi. 19, fig. 10 ; 



1876, p. xi, and footnote 8. 

 Amphidromus theobaldianus, Theobald, J. A. S. B. xlv, 1876, p. 187, 



pi. 14, fig. 8. 

 Amphidromus schomburgki, var. theobaldi, Nevill, Hand List, i, 



1878, p. 126. 

 Buliminus (Rhachis) theobaldianus, Kobelt, Conch.-Cab., Fam. Buli- 



minidae, 1900, p. 672, pi. 102, fig. 14. 



Original description : " Testa conico-oblongata, plerumque sini- 

 strorsa, Isevis, luteo-cinerea flammulis longitudinalibus, fascia 

 suturali lineari, et fascia subsuturali interrupta fuscis ; regione 

 umbilicali fusca, fascia lutea divisa ; aufr. 7, ultimo subcarinato ; 

 apertura subovata, basi angulata, sub-effusa ; labro reflexo, rubro- 

 purpureo, ad columellam dilatato ; fauce purpurea. 



"Long.li [=30-5 mm.] ; lat. ^ poll. [ = 17'75 mm.]." (Gould.} 



Hab. Burma : Tavoy (Mason). 



154. Amphidromus sylheticus, Reeve. 



Bulimus sylheticus, Reeve, Conch. Icon. 1849, pi. 77, fig. 664; 



Pfeiffer, Conch.-Cab., Bulimus, 1853, p. 68, pi. 20, figs. 25, 26 ; 



Hanley & Theobald, Conch. Ind. 1870, pi. 19, fig. 9; Godwin- 

 Austen, J. A. S. B. xlv, 1876, p. 316. 

 Bulimus (Amphidromus) sylheticus, Pfeiffer, Malak. Blatt. ii, 1856, 



p. 147. 

 Amphidromus sinensis, var. sylhetica (Benson), Nevill, Hand List, i, 



1878, p. 127. 

 Amphidromus sylheticus, Fulton, A. M. N. H. ser. 6, xvii, 1896, 



p. 79 ; Pilsbry, Man. Conch, ser. 2, xiii, 1900, p. 189, pi. 63, 



figs. 97, 98. 



" Shell sinistral, umbilicate, ovate-conic, polished, striatulate, the 

 first whorl weakly puuctulate ; greenish-yellow below the periphery, 

 paler above, fading on the spire, the early whorls and apex whitish. 

 Whorls 5^, slightly convex, the last but weakly convex above, very 

 convex, full, and sack-like below. Aperture ovate, oblique, slightly 

 brown or ochre-tinted within ; the peristome white, reflexed j 



