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Show 488 MR. E. A. SMITH ON N E W SPECIES OF SHELLS. [Nov. 17, basali lutea ornata ; columella late expansa, obliqua, nigres-cens. Longit. 7 millim., diam. maj. 3|; apertura 3 longa, 2{ lata. Hab. Common in rock-pools at Green Point, Watson Bay, Port Jackson, N . S. Wales ; also Parsley Bay, Port Jackson (Brazier). Although of small size, the specimens described are evidently adult. The species is remarkable for its produced acuminate spire, the deep chestnut aperture bordered with a yellow outer lip, the almost black columella, and the red and white punctate character of the markings. This spotting is hardly visible to the naked eye, and excepting under a lens the shell has a general dark slaty appearance, yellowish at the suture and the base of the body-whorl. LITTORINA INFANS. (Plate XL. fig. 4.) Testa minuta, ovata, superne acuminata, ad apicem scepe erosa, nigrescens, circa basim zona pallida albo rufoque notata ornata ; anfractus 5, convexiusculi, striis incrementi tenuibus sculpti, ultimus ad medium subangulatus; apertura nigrescens, zona basali pallida ornata, longit. totius j adcequans, ovata, superne acuminata, antice effusa; peristoma tenue, marginibus callo tenui junctis, columellari expanso, nigro. Longit. 3| millim., diam. 2j ; apertura if longa, 1| lata. Hab. Green Point, Watson Bay, Port Jackson. Found in rock-pools washed by ordinary high tides (Brazier). This minute species like the preceding also appears to be adult. It is generally almost black, excepting the basal spotted zone, but occasionally specimens occur which are also more or less tessellated above. HELIX (PAPUINA) AGNOCHEILTJS 1. (Plate XL. fig. 5.) Testa semiobtecte umbilicata, depresse turbinata, solidiuscula, lineis incrementi oblique fiexuosis conspicue lirato-striata, sub epidermide fiavo-olivacea nitida albida, zonis plumbus (interdum obsoletis) nigrescentibus cincta; spira late conoidea, ad apicem fusco-nigrescentem haud acuminata ; anfractus 4\, celeriter crescentes, convexi, infra suturam linea nigrescente marginati, ultimus in medio acute rotundatus, antice valde descendens ; apertura transversa, obliqua, intus alba, hlaceo-fuscescens vel nigrescens callo tenui opalescente obscurata; peristoma niveum, late expansum et refiexum, marginibus conniventibus, callo tenui junctis, columellari intus inferne truncato, supra umbilicum late dilatato et reflexo. Diam. maj. 42 millim., min. 33, alt. 34; apertura cum labro 21g longa, 25 lata. Hab. Douglas River, British N e w Guinea. This species is remarkable for the broad snow-white lip, the truncate columella, and the very strong thread-like lines of growth. It is variable in colour, sometimes being conspicuously banded or 1 ay vos, pure ; xei/W, lip. |