884 MOLLTJSCA. 



Helicarion gigas, Bens., var. 



Vitfinagigas, Bens., Joum. As. Soc, Bengal, vol. Vj 1836, p. 350. 

 HelicarioTi gigas, Bens., var., Nevill, l. c, p. 34. 



A single specimen was found at Kyoukphyoo ; tliougli differing slightly, it is so 

 close to the shell of typical Selic. gigas, that I think there can be little doubt of 

 their identity. 



Diam. 35^, axis SJ ; apert. lat. 27J, alt. 21 mm. 



Helicatmon MAGNiFicuM, God.-Aust. & NcY. 



Helicarion magnificus, God.-Aust. & Nevill, Journ. As. Soc, vol. xlvi, 1877, p. 24, 



I am indebted to Lieutenant-Colonel Godwin- Austen for pointing out that this 

 magnificent slug, the largest yet known of the genus, is quite distinct from Benson's 

 Kelic. gigas (Khasi Hills) ; Godwin- Austen has kindly undertaken to describe the 

 animal with full details and a figure, so that it is only necessary for me here to state 

 that it is very closely allied to the Assam species, but that the shell is much larger, 

 of a brown (not green) colour, with the body- whorl much more flatly expanded, and 

 the spire less convoluted and more depressed, and that, looked at from underneath, 

 very much less of the reflected body- whorl is visible. 



The largest specimen, in spirit, measures 70 mm. 



Shell, diam. maj. 45, axis, 11 J; apert. lat. 40 J, alt. 19^ mm. 



Tolerably abundant at Momien, in Yunnan. 



Helicarion venustum, Theob. 



Vitrina (?) vemista, Theob., Joum. As. Soc, Bengal, 1870, p. 400. 



/ Helicarion solidum, God.-Aust., Proc. Zool. Soc., 1872, p. 5, pi. i, fig. \a. 



Helicarion venustum, Nevill, I. c, p. 24. 



Dr. Anderson brought back from Ponsee, in Yunnan, numerous specimens 

 (preserved in spirit) of a small form, the shell of which I am unable to distinguish 

 from typical Arakan specimens of Selic. venustum, only differing in apparently 

 being of a smoother and more polished texture and in the spire being a shade more 

 distinctly convoluted ; a single specimen of Selic. solidum from the Naga Hills is 

 quite undistinguishable from the above Arakan specimens. The figm^es in the Con. 

 Indica of the two forms are, however, so distinct that the types will have to be re- 

 examined. Dr. Anderson also brought back a small specimen (in spirit) of ap- 

 parently the same form from Nampoung, in the Kakhyen Hills, found under stones 

 near running water ; the animal of this specimen differs from that of my Melic. 

 resplendens in apparently completely covering the shell and in being of a duskier, 

 more uniform coloration, apparently not speckled at all, but of a darker tinge on 



