OCR Text |
Show 538 MR. c. J. GAHAN O N T H E [Dec. 4, LEPTOPOMA MOUHOTI, var. Testa conica, tenuis, semipellucida, umbilicata, alba, interdum infra peripheriam fusco tincta, epidermide tenui lutescente induta ; spira conica, mediocriter elevata; anfractus 5, convexi, liris spiralibus filiformibus (in anfr. penultimo circiter 6) instructi, striisque inter liras sculpti, incrementi lineis obliquis ornati; ultimus liris 12 (mediana ad peripheriam cceteris paulo majore) succinctus ; apertura fere circularis, longit. totius -£ paulo superans ; peristoma anguste expansum, marginibus callo tenui junctis. Long. 10g millim., diam. maj. 10-^-. Hab. Found on mossy trunks of trees in the upper part of the island (J. J. Lister). In sculpture the specimens from Christmas Island agree exactly with L. mouhoti, Pfeiffer, from Camboja. They differ in being broader and in having the spire a trifle less elevated. The peristome also is slightly narrower. Until I have an opportunity of examining a larger series of the two forms, I think it best not to separate them specifically. 8. On the Coleoptera of Christmas Island. By C. J. GAHAN, M.A. [Eeceived October 15, 1888.] The Coleoptera in Mr. Lister's collection consist of about 70 specimens belonging to 20 different species, and to almost as many distinct genera. The genera mostly, and in some cases also the species, are of wide distribution. One genus is new ; this, while closely allied to an Indo-Malayan genus, is related also to a distinct Australian genus. In the following list I have indicated the genera and, as far as possible, the species, but the latter, I have found it impossible in many cases to determine without the expenditure of considerable time. Those which I believe to be new are described below. M O R I O ORIENTALIS, Dejean. HOLOLEPTA, sp. PJEDERUS, sp. PAR-EGUS LISTERI, n. g. et n. sp. LEPTAULAX, sp. CHRYSODEMA SIMPLEX, C. Waterh. STIGMATIUM, sp. MNEPHILUS, sp. HOPATRUM, Sp. SESSINIA, sp. |