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Show 120 MR. E. A. SMITH ON LAND-SHELLS FROM [Eeb. 5, lineis incrementi obliquis supra et infra vcdidis, pliciformibus, umbilico mediocri ut in L. undato; apertura oblique ovata; perist. duplice, margine externo late expanso, acuto, haud reflexo, intemo continuo, leviter porrecto ; anfractibus superioribus planiusculis, liris paucis spiralibus tenuibus cinctis. Longit. 16| millim., diam. maj. 17|, min. 13| ; apertura intus 6 longa, 7 lata. Hab. Summit of Mount Ambun, British North Borneo, at an elevation of 3500 feet. This species was collected by Mr. S. B. J. Skertchly, who observes on a ticket accompanying the two specimens, kindly presented to the British Museum by Mr. J. J. Walker, "animal emerald-green, so the shell looked green with white porcelain bands." Its small size and strong sculpture distinguish this species from its allies, L. undatum, L. niahense, and L. geotrochiforme. 63. LAGOCHILUS BANGUEYENSIS. (Plate IV. fig. 5.) Testa depresse turbinata, anguste umbilieata, tenuis, epidermide dilute olivacea, setosa induta ; anfractus 6, celeriter accrescentes, convexi, spiraliter lirati, superiores saturate rufescentes, cceteri strigis rufis radiantibus ornati, ultimus inferne haud strigatus, infra peripheriam zona angusta rufa pictus, supra medium liris circa 8-9 instructus, infra lineis impressis circa 6 remotis et subpunctatis sculptus ; apertura fere circularis, mediocriter magna ; peristoma duplex, tenue, margine externo vix expanso, intemo continuo, pallido, leviter incrassato, ad suturam minute sinuato. Diam. maj. 13 millim., min. 10, alt. 11 ; apertura 6 lata. Hab. Banguey Island, North Borneo. This species is clothed with a very hairy epidermis; the hairs are short, dark brown, situated upon the spiral lira? and the impressed lines on the base of the body-whorl, and at the same time they form oblique series in the direction of the lines of growth. The epidermis is easily cleaned off, the shell then having a very different look. The red radiating markings are curved and somewhat wavy, but do not extend beyond the middle of the body-whorl. 64. LAGOCHILUS RABONGENSIS. (Plate IV. fig. 6.) Testa turbinata, umbilieata, sub epidermide tenui fiavo et rufo oblique strigata, spiraliter lirata ; anfractus 5-6, convexi, liris tenuibus spiralibus (in anfr. penult, quatuor) cincti, ultimus liris circiter 8-10 ornatus, antice vix descendens; apertura rotundata, mediocris ; peristoma duplex, margine externo tenui plane reflexo, intus leviter incrassato, dilute lilaceo, continuo, suturam minute sinuato. Diam. maj. 9 millim., min. 7j, alt. 8 ; apertura intus 3 | lata. Var. Testa minor, omnino lutescens vel strigis rufis radiantibus ornata. Diam. maj. 7 millim., min. 6, alt. 7. Boo, Mount Rabong, West Sarawak (A. Everett). |