petuchi Harasewych, Petit & Verhecken, 1992 but may be distinguished from it by having a broader shell with a shorter, wider spire a proportionally larger aperture that is widest along its adapical half and has fewer, weaker lirae on the outer lip and, most conspicuously, by having reticulate sculpture that becomes more irregular and dominated by axial ribs in latter whorls, and by being white or faintly mottled in very light tan rather than having dark brown spiral bands. more Abstract Cancellaria (Cancellaria) coltrorum, new species, is described from shallow waters of the southern Brazilian Province, ranging from the Abrolhos Archipelago to Vitória. Cerion uva gouldi may be distinguished from living populations of Cerion on Aruba on the basis of its cylindrical rather than ovate shell shape, its more closely spaced whorls, and its round aperture with a uniform rather than anteriorly expanded parietal rim.Ībstract Cancellaria (Cancellaria) coltrorum, new species, is described from shallow waters of th. Earlier authors had recognized that fossil Cerion from Aruba differ in morphology from those living on the island today, with fossils being more similar to specimens from western Curaçao and Bonaire, while those living on Aruba today are most similar to Cerion uva uva from eastern Curaçao. Cerion uva was widespread on Aruba during the Pleistocene, but became extinct on that island and was subsequently reintroduced from a population near Willemstad in eastern Curaçao by humans within the past 800 years. A recent molecular study has shown that Cerion uva arubanum, a taxon based on living type material from Aruba, is a synonym of Cerion uva uva (Linnaeus, 1758), with which it shares a preponderance of mitochondrial haplotypes. The name Cerion uva arubanum Baker, 1924 had previously been applied to all Cerion uva from Aruba, living and fossil. Cerion uva gouldi is described as a new subspecies to include only fossil and subfossil Cerion uva from Aruba. Cerion uva gouldi is described as a new subspecies to include only fossil and subfossil. Although they form a morphologically compac.Ībstract. The Cancellariacea comprise a highly specialized, poorly known and taxonomically enigmatic group of marine gastropods. Based on the morphology ofradulae and jaws we suggest that the subfamilies Cancellariinae and Trigonostominae are more closely related to each other than either is to Admetinae, in which there is a trend toward loss of the radula. Olssonella smithii also lacks bifurcated columellar folds and has internal varices that differ in periodicity from those ofC. Shell ultrastructure is similar in these two species, although 0. It resembles Cancellaria reticulata (Linné, 1767) in anatomical organization, but differs in having a less specialized anterior alimentary system and an unmodified left cephalic tentacle. more Olssonella smithii (Dall, 1888) is a small cancellariid gastropod that inhabits sand svèstrates off the southeastern United States, the Gulf of Mexico, Colombia and Venezu£la.
53-58.Olssonella smithii (Dall, 1888) is a small cancellariid gastropod that inhabits sand svèstrates o. Fisheries Commission Bulletin 20 351-524, pls. Simpson. 1901. The Mollusca of Porto Rico U. A. 1846. Descriptions of new species of fossil and Recent shells and corals Proceedings of the Academy of Natural Sciences of Philadelphia 3 19-27, pl. bermudensis Dall in Dall & Simpson, 1901, p. auritula.Ĭombining Genera: Aplus Cantharus Gemophos Pisania Tritonidea References: Warmke & Abbott (1961) Porter (1974) L Hemmen & Hemmen (1979) E Reed & Mikkelsen (1987) D Odé (1983b) M Lyons (1989b) Macsotay & Campos (2001) S Vermeij (2006) cĬomments: Brazilian records need confirmation the specimen illustrated by Rios (1985, 1994) appears to be P. Type Locality: Mouth of Manatu River, of Tampa Bay, Floridaĭistribution: USA: North Carolina, South Carolina, Florida: East Florida, West Florida, Florida Keys USA: Texas Mexico: Veracruz, Tabasco, Campeche State, Cayo Arcas, Campeche, Yucatan State, Alacran Reef, Quintana Roo Panama, Colombia, Venezuela: Sucre Bermuda, Jamaica, Puerto Rico St. Gastropoda: Neogastropoda: Buccinoidea: Buccinidae Malacolog Version 4.1.1 A Database of Western Atlantic Marine Mollusca Malacolog 4.1.1: Western Atlantic Mollusk Species Database at The Academy of Natural Sciences
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