6 BACILLUM. 



11, length of aperture 10 to 11, width 5 to 5.5 mm. ; apex 3 

 mm. wide (W. T. Blanf.). 



Bhamo, Ava (Blanf ord). 



Achatina (Glessula) obtusa BLANF., P. Z. S., 1869, p. 449. 

 HANLEY & THEOB., Conch. Ind., p. 17, pi. 36, f. 6. PFE., 

 Monogr., viii, p. 290. Not Achatina obtusa Pfr., Monogr., ii, 

 281, which was originally described as a Glandina. 



"Very close to A. cassiaca Bens., but distinguished by finer 

 sculpture, narrower and less numerous whorls, and much 

 more obtuse apex." 



2. B. ORTHOCERAS (Godwin-Austen) . PI. 1, figs. 2, 3, 12. 



"Shell very slender and elongate, pale gray or white, very 

 finely and regularly ribbed throughout, very solid, apex 

 blunt; whorls 13 to 14, slightly rounded, suture well im- 

 pressed; aperture oblique, rounded below, outer lip sharply 

 edged and continued as a well-developed callus upon the 

 strong, thickened columellar margin. Length 2.32, major 

 diam. 0.4 in." (Godwin- Austen} . 



Khasi Hills. 



Glessula orthoceras G.-A., Journ. Asiat. Soc. Bengal, xliv, 

 part ii, 1875, p. 2, pi. 1, f. 4. Achatina o., PFR., Monogr., 

 viii, p. 289. Stenogyra (Glessula} o., G. NEVILL, Hand List 

 Moll. Ind. Mus., i, p. 172. 



' ' Abundant on the nummulitic limestone of the West Khasi 

 Hills, particularly near Nongumlai, where the finest speci- 

 mens were collected; a smaller variety occurred on the peak 

 of Laudomodo on gneiss, and was not so solid. This species 

 can be at once distinguished from G. cassiaca Bs. by its white 

 color and by the absence of the dark brown epidermis that 

 covers the latter; the whorls also are much more rounded, 

 whereas in cassiaca they are nearly flat. It is very close to 

 G. obtusa W. Blf., brought from Yunan by Dr. J. Anderson, 

 but is altogether a larger shell and differs in its general form. 



' ' Fine Glessula cassiaca I only found to the eastward in the 

 Naga Hills, whence I suspect Griffith's specimens were ob- 

 tained and sent to Benson, who imagined they were from the 

 Khasi Hills" (Godwin- Aust en} . 



