248 F. Stoliczka — Notes on Terrestrial Mollmca. [No. 3, 



Macrochlamys [Durgella] honesta, Gould, pi. xvii, figs. 6-14. 



Helix honesta, Gould, 1846, Proc. Bost. Soc. Nat. Hist., II, 98, eadem auct. 



This is, like many other allied forms, an extremely variable 

 species. 



Gould's original specimen represents a very flat and apparently 

 young shell. I have a young specimen from Pegu, rather strongly 

 keeled at the periphery, horny, translucent, and with a peripherical 

 rufous band ; it exactly agrees with Gould's measurements. The 

 specimen from Pegu figured on plate xvii, figs. 6, 6a, 6b, is a 

 full grown shell of the same type and is identical with the one 

 described by Pfeiffer in Monag. Helicorun, vol. i, p. 57. This 

 variety has the outer lip barely descending at the aperture, but it 

 has the characteristic oblique mouth, as noted by Blanford (Journ. 

 A. S. B., 1865, vol. xxxiv, p. 87). 



Another variety occurs in Pegu (see fig. 7, pi. xvii,) which 

 is higher and has the last whorl rather rounded, or barely keeled 

 at the periphery, but the outer lip is not descending. Larger diam. 

 13, smaller diam. 11 J, height 8 mm. The same variety also occurs 

 in Arracan and in the Khasi hills, and appears to represent the 

 Bengal If. vesicula and lecythis, Benson, of the Rajmahal hills, 

 both when young being almost undistinguishable. Reeve's figure 

 of honesta, (Mon. Hel., pi. 84, fig. 452), appears to represent the 

 above noticed variety, but it also could be taken for either of the 

 two last noted species. 



A third variety occurs at Moulmein and in Upper Burma. This 

 (see fig 9, pi. xvii,) has the whorls above strongly convex, the last 

 almost evenly rounded at the periphery, and at the aperture the 

 outer lip considerably descending, thus causing its narrow shape. 

 'It is a very common shell on all the limestone hills about Moul- 

 mein, and very closely resembles externally Sophina Calias, except 

 that it wants the umbilical carina and slit. The usual size is 1 1 

 or 12 mm.; the largest I observed measures, larger diam. 13-3, 

 smaller 11, height 8 mm. Sometimes specimens are met with 

 which appear to attain a somewhat irregular growth after a certain 

 age (see fig. 8, pi. xvii,) ; the additional portion {a b) of the whorl 

 being always considerably thinner than the rest of the shell, and 



