APPENDIX". 
287 
DESCRIPTIONS OF SOME NEW SPECIES OF LAND-SHELLS FROM BORNEO. 
By EDGAR A. SMITH. 
[From the 1 Annals and Magazine of Natural History.’] 
1, Nanina reyalis , Benson ; 2, N. subconsul, sp. n. ; 3, Trochomorpha metcalfei, Benson ; 4, T. plan- 
orbis, Lesson ; 5, T. conicoides, Metcalfe, var. parca ; G, Leptopoma undatum, Metcalfe ; 7, L. sericatum, 
Pfr. ; 8, L. wldteheadi, sp. n. ; 9, Opisthoporus pterocycloides, Pfr. 
Nanina subconsul. 
Testa JY. consult simillima, superne tamen minus nitida ; anfractibus paulo planioribus instructa, 
sculptura minutissime rugulosa superne ornata, inferne spiraliter microscopice striata. 
Diam. maj. 19, min. 17 ; alt. 10£ mill. 
Hab. North Borneo. 
This species is very closely related to JY. consul, and is only distinguished from that species by its 
duller upper surface, resulting from a different microscopic sculpture, and its slightly less convex whorls. 
The spiral striae on the base are visible under an ordinary lens, but the minute rugulose lines of the upper 
surface are discernible only under a stronger magnifier. 
Helix (Trochomorpha) conicoides, Metcalfe, var. parva. 
Two specimens collected hr Northern Borneo by Mr. John Whitehead are exceptionally small and 
depressed, and remarkable also on account of the basal margin of the peristome being slightly thickened, 
narrowly expanded, and reflexed, a feature which does not occur in ordinary examples. In colour, 
texture, and sculpture they offer no differences. Although consisting of seven whorls, the greatest 
diameter is only 11 millimetres. 
Leptopoma whiteheadi. 
Testa conica, umbilicata, mediocriter tenuis, purpurascenti- vel fuscescenti-cornea, maculis rufis 
sutura radiantibus picta, epidermide tenui sublamellata amicta ; anfractus 6, convexi, carinis 
tenuibus 2-3 instructi, incrementi lineis striisque spiralibus inconspicuis sculpti, sutura sub- 
profunda sejuncti, ultimis carinis ad G ornatus ; apertura modice magna ; peristoma anguste 
reflexum, bimarginatum. 
Diam. maj. 12^, min. 10 ; alt. 12\ mill. 
Hab. Northern Borneo. 
This interesting species was collected by Mr. John Whitehead, with whose name I have associated 
it. It is peculiar on account of the epidermis, which upon the keels is produced into very short tufts. 
The operculum is very thin, yellowish, and consists of about eight whorls. 
Lieut.-Col. Godwin-Austen describes the following new species in the 1 Proceedings of the Zoological 
Society,’ for January 6, 1891 :— 
HELICARION (?) WHITEHEADI, 11. sp. 
Shell depressedly globose, tumid, slight subangulation on periphery, not perforate ; sculpture coarse, 
a peculiarly wrinkled surface, the lines having a very oblique transverse direction ; colour rich umber- 
brown, pale purple and iridescent within the aperture ; spire low, rounded on apex ; suture impressed ; 
whorls 3£, rapidly increasing, the last much expanded ; aperture widely ovate, oblique ; peristome thin, 
not reflected at all on columellar margin, which is subvertical. 
Size : maj. diam. 35’0, min. 28’0; alt. axis 12-0 ; breadth of aperture 2(H) millim. 
Hab. Kina Balu Mountain, altitude not known. 
I place this next to Helicarion borneensis, not that I think it has any affinity to that genus as 
restricted, but only in its widest sense ; the animal would be a most interesting one to examine, and will 
