SCHISTULOMA. I7i 



Orif/inal description: — "Sliell elongated, spire acutely terminated, 

 ol a light reddish- brown color ; whorls about eight, convex, nearly 

 smooth, and shining; the penultimate whorl, on a profile view, 

 somewhat gibbous ; hist whorl not conforming to tlie axis of the 

 preceding whorls, but thrust forward, so that the plane of the 

 aperture advances beyond a parallel with the axis ; aperture 

 coloured as without ; lip white, everted niodei'ately, having a 

 slight tissure or canal across it posteriorly, at the outer angle of 

 the aperture ; posteriorly the lip is double, the inner portion 

 continuous, the outer terminating as it touches the shell ; um- 

 bilicus small; operculum thin, horny. 



'"Length 1 inch [25 mm. J; breadth j of an inch [6'25 mm.]." 



Hah. Burma: Tavoy {.\Jason)-, King's Island, Mergui Archi- 

 pelago {Anderson). Perak {Mollendorff ). 



" Closely resembles C. altam, Sowb., but has the fissure across 

 the peritreme on the opposite side," {Goidd.) 



247. Schistoloma tanychilum, Godwin- Austen. 



Meyalomastonia trmi/ckeihrs, Godwin-Austeii, J. A. S. B. xlv, part 2, 



1876, p. 180, pi. 7, lig. Tj. 

 Megalonuidoma {Coi>focheilus) tanycheilus, Nevill, Hand List, i, 



1878, p. 296. 

 Coptochilus tanychilum. Kobelt & MoUendorti", Nachr. Deuts. 



Malak. (Jes. xxix, J«97, p. ]4:J : id., Cat. Tueuui. 1899, p. 39. 

 Schistoloma tanycliilus, Kobelt, Das Tierreicli, Lief. 16, 1902, 



p. 281. 



Original description: — "Shell cylindrical, turreted, solid, pale 

 ochreous, sometiuies with a tinge of green, rather strongly and 

 diagonally sti'iated. Spire straight, sides nearly parallel, apex 

 conoidal, suture shallow. Whorls 9, witii very slight convexity 

 of side. Aperture vertical, large, and circular, the peristome 

 continuous, very largely developed, thickened, and expanded ; 

 at base of the last whorl is a strong keel whicli terminates above 

 near tlie centre of aperture. Operculum composed of several 

 horny layers, which appear to be lormed slowly and concentricallv 

 on a line radiating from the centre to the circumference. 



" Length 1'20 [30'5 mm.], diam. 0-35 [9 mm. J, diam. apert. 

 (peristome included) 0-32 in. [8 mm.]." 



Hah. India: JJikrang Valley, Dafia Hills, Assam {Godivin- 

 Austen). 



"This shell is a much wider departure from the Uarjeeling 

 form first described by Benso)], M. funicxdatum, which is so much 

 more tumid, shorter in spire, of a dark purplish-bi-ov.n colour, 

 and never has the peristome so broad and thickened as in this 

 species. M. pauiiercidum is intermediate between the two." 

 ( Godwin- Austen .) 



