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Show 114 MB. E. A. SMITH ON LAND-SHELLS FROM [Eeb. 5, angulatus, antice paxdo descendens; apertura late et oblique lunata, intus livido-fuscescens ; peristoma tenue,pallide undique expansum, marginibus remotis, callo tenuissimo nitente junctis. Diam. maj. 30 millim., min. 24, alt. 17. Hab. Panalingoan, south-west of Palawan. Much larger than H. tomentosa, more widely umbilicated and of a different form. 42. HELIX (DOECASIA) INCAUTA. (Plate III. fig. 18.) Testa subglobosa, tenuis, anguste umbilieata, cornea vel rubescens, epidermide tenui olivacea induta, incrementi striata ; spira brevis, conoidea, ad apricem subacuta ; anfractus 6, leviter convexiusculi, ultimus ad peripheriam obsolete angulo linea subpjellucida picto, antice haud descendens; apertura late lunata, obliqua; peristoma subincrassalum, lilaceum, margine s dexlro vix reflexo, columellari dilatato reflexo. Diam. maj. 16 millim., min. 14, alt. 14; apertura 8 longa, 7'5 lata. Hab. Sarawak (Bartlett). A single specimen was presented to the British Museum by Mr. E. Bartlett in 1893. It somewhat resembles H. fodiens, Pfeiffer, but is more finely striated and has a more pointed spire. In addition to the fine lines of growth, faint traces of spiral stria? are also observable. 43. HELIX (PAPUINA ?) EUFOFILOSA, Bock. Helix (Geotrochus) rufofllosa, Bock, Proc. Zool. Soc. 1881, p. 630, pi. Iv. fig. 4. Helix (Satsumd) rufofllosa, Pilsbry, Man. Conch, ser. 2, vol. vii. p. 84, pi. iii. fig. 55. Hab. Meri, Sarawak (62 Hose) ; Paio, Sumatra (Bock). Tbe single example collected by Mr. Hose is exactly similar to the types of this species presented to the Museum by Mr. Bock. Is it probable that this species occurs both in Borneo and Sumatra? I am rather inclined to think that Mr. Bock has made a mistake with regard to his locality. This might easily have occurred, as he collected in both islands. 44. HELIX (PLECTOTBOPIS) WINTEEIANA, Pfeiffer, var. ft. Hab. Busau, West Sarawak. The specimens from this locality agree with Pfeiffer's var. ft founded on Philippine examples. They are of the same small size, have a more pronounced keel than typical Javan specimens, and the under surface exhibits more distinct concentric striation than the typical form. These stria? are even more apparent in the shells from Guimaras. Both Martensl and Moellendorff2 question 1 Eeise in Ost-Asien, ii. p. 265. 2 Jahrbuch deutsch. mal. Gesell. 1887. p. 270. |