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Show 124 MB. E. A. SMITH ON LAND-SHELLS FBOM [Eeb. 5, The Palawan specimens have half a whorl less than those from Luzon, the spire above the penultimate volution appearing in consequence a trifle shorter. The sculpture, form of aperture, and columellar denticle are the same 2 75. PUPINA HOSEI, Godwin-Austen. Pupina hosei, G.-A. Proc. Zool. Soc 1889, p. 351, pi. xxxix. figs. 1,1a. Hab. Busau {type); Mulu Mountain and Mount Rabong, Sarawak; also Balabac and Palawan (A. Everett). This species is rather variable in size, even among specimens from the same locality. Some examples are stouter than others, and one from the cave-earth, in a semi-fossilized condition, has an exceptionally tall spire. There is very little variation in the form of the aperture, the peristome, and sinuses. 76. CYCLOTUS PALAWANICUS. (Plate IV. fig. 14.) Testa orbicularis, aperte umbilieata, dilute castanea, infra medium paulo pallidior, lineis incrementi tenuibus striata, subpolita; spira depressa, apice obtuso, prominulo; anfractus 5, convexi, celeriter accrescentes, sutura profunda sejuncti, ultimus antice leviter descendens; apertura mediocris; peristoma duplex, margine externo superne lato, tenui, haud reflexo,prope suturam concave dilatato, intemo continuo, infra suturam leviter sinuato, umbilicum versus cum externo conjuncto et incrassato; operculum utrinque leviter concavum, ad marginem bicarinatum, inter carinas acutas excavatum, sordide albidum, ex anfractibus nonis oblique striatis constitum. Diam. maj. 21 millim., min. 15, alt. 10 ; apertura intus 7 longa et lata. Var. P A E V A . Testa minor, concolor, vel supra plus minus maculata ; peristoma angustius expansum. Diam. maj. 15| millim. Hab. Maranggas, S.W. Palawan. If very carefully examined, a very faint peripheral zone is traceable. 77. CYCLOTUS PUSILLUS (Sowerby). Cyclostoma pusillum, Sowerby, Thes. Conch, vol. i. p. 94, pi. 23. figs. 5, 5* ; Pfeiffer, Conch.-Cab. ed. 2, p. 59, pi. 7. figs, 16,17. Cyclotus pusillus, Reeve, Con. Icon. fig. 39 ; Hidalgo, Journ. de Con. 1888, p. 57. Hab. Luzon and Negros, Philippines (Sowerby) ; Marinduque and Cebu (Hidalgo) ; Palawan (Everett). Two specimens from Palawan, 9 millim. in diameter, are peculiar in having the last half of the body-whorl disconnected with the penultimate. 1 In my Eeport upon the Land-Shells of the Natuna Islands, I named a species belonging to this genus D. strubelli. I regret to find that that name had already been used, and propose therefore to change it to D. brunonis. |