. The atoll of Funafuti, Ellice group: its zoology, botany, ethnology, and general structure based on collections made by Mrs. Charles Hedley, of the Australian museum, Sydney, N. S. W. APPENDIX—MOLLUSCA. 557. Pig. 71. This species is most like 0. oodes, Watson, from which it is separated by more conical shape, fewer ribs and different apex. Odontostomia biplicata, sp. 710V. (Fig 71.) Shell oblong-ovate, imperforate, white. Whorls three and an inrolled vertical and half buried apex, slightly gradate, separated by a channeled suture. Upper whorls angled and contracted above the suture. Last who
. The atoll of Funafuti, Ellice group: its zoology, botany, ethnology, and general structure based on collections made by Mrs. Charles Hedley, of the Australian museum, Sydney, N. S. W. APPENDIX—MOLLUSCA. 557. Pig. 71. This species is most like 0. oodes, Watson, from which it is separated by more conical shape, fewer ribs and different apex. Odontostomia biplicata, sp. 710V. (Fig 71.) Shell oblong-ovate, imperforate, white. Whorls three and an inrolled vertical and half buried apex, slightly gradate, separated by a channeled suture. Upper whorls angled and contracted above the suture. Last whorl slightly angled at the periphery. Sculpture— last whorl with two small, but sharp revolving ridges, one at the periphery and the other below the suture, both ascending the earlier whorls. Upper whorls otherwise smooth, final whorl furrowed spirally by about twenty-five fine close grooves beneath the periphery. Aperture ovate, acuminate above and below. Deep within the throat and confined to the posterior moiety, are five strong revolving ridges, the remainder of the throat is grooved by small revolving stride, answering to the externals culpture. Lip sharp, simple, produced anteriorly. Columella with a heavy, median, transverse fold, posterior to which is another deeper oblique fold. Length 1 46; breadth '7 mm. One specimen dredged at 36 fathoms north of Pava Islet. This is a well marked species. Not only is it smaller than any enumerated in Tryon's Monograph, but the second, deep seated columella fold seems to be unmatched in the genus. The ridges in the throat occur in some species from the Red Sea. RlSSOA FINCKHI, Sp. UOV. (Fig. 72.) Shell narrow, subulate, turretted, massive, small. Colour white with a yellow apex. Whorls eight. Sculpture-round the periphery of each whorl is wound a heavy tabulate keel. The penultimate whorl carries a spiral thread above and another below this keel. On the last whorl is a raised subsutural thread and three basal lyra. Aperture obliqu
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishersydne, bookyear1896
