Descripción
The genus Liotipoma McLean & Kiel, 2007, was proposed for a remarkable small-shelled gastropod genus from coral reefs of the Indo-Pacific that resemble the family Liotiidae Gray, 1850 in having fine axial lamellae and a thickened terminal lip, but differ in having the solid calcareous operculum of the family Colloniidae Cossmann, 1916. The genus was originally assigned to the otherwise Cretaceous subfamily Petropomatinae Cox, 1960 of the family Colloniidae, because the inner side of the operculum is multispiral, conical and projecting, as in the Mesozoic genera assigned to Petropomatinae. Here the genus Liotipoma is assigned to a new colloniid subfamily Liotipomatinae n. subfam. because its axial lamellae are unknown in the Cretaceous genera of Petropomatinae. Four genera are now recognised; all species are known from shell grit samples collected by diving or dredging at coral reefs from recent MNHN expeditions to New Caledonia, the Loyalty Islands, Espiritu Santo (Vanuatu) and Wallis Island, and also from LACM material from Fiji, Papua New Guinea, and the Marshall Islands. The most speciose genus is Liotipoma, with eight known species, seven of which are new and described here the largest known species is L. magna n. sp. from Santo, Vanuatu. Also described are: Depressipoma n. gen. with two new species from the Marshall Islands; Rhombipoma n. gen., with one new species from Rowley Shoals, northwestern Australia; and Paraliotipoma n. gen.,with one new species from Sea Horse Shoal, South China Sea. Although live-collected specimens are still unknown, sexual dimorphism in Liotipoma was reported for the type species when the genus was described. Here it is reported from four of the eight known species of that genus, expressed in expansion of the umbilical cavity as a brood chamber in the female shell, as previously reported in the families Liotiidae and Colloniidae. In two species the worn female shell shows an irregular degradation of the umbilical cavity, which is considered the effect of bearing a large egg mass and brood. For reasons unknown, female shells of most species of Liotipoma are much less frequent than male shells. Formal validation of Areneidae n. fam. is provided in an addendum to this paper.
Registros
Los datos en este recurso de registros biológicos han sido publicados como Archivo Darwin Core(DwC-A), el cual es un formato estándar para compartir datos de biodiversidad como un conjunto de una o más tablas de datos. La tabla de datos del core contiene 32 registros.
Este IPT archiva los datos y, por lo tanto, sirve como repositorio de datos. Los datos y los metadatos del recurso están disponibles para su descarga en la sección descargas. La tabla versiones enumera otras versiones del recurso que se han puesto a disposición del público y permite seguir los cambios realizados en el recurso a lo largo del tiempo.
Versiones
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¿Cómo referenciar?
Los usuarios deben citar este trabajo de la siguiente manera:
Mclean J H (2022): New species and genera of colloniids from Indo-Pacific coral reefs, with the definition of a new subfamily Liotipomatinae n. subfam. (Turbinoidea, Colloniidae). v1.0. Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node. Dataset/Occurrence. https://nzobisipt.niwa.co.nz/resource?r=liotipomatinae&v=1.0
Derechos
Los usuarios deben respetar los siguientes derechos de uso:
El publicador y propietario de los derechos de este trabajo es Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node. Esta obra está bajo una licencia Creative Commons de Atribución/Reconocimiento (CC-BY 4.0).
Registro GBIF
Este recurso no ha sido registrado en GBIF
Palabras clave
Occurrence; Specimen
Contactos
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- Originador ●
- Punto De Contacto
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- 900 Exposition Blvd
Cobertura geográfica
Indo-Pacific
Coordenadas límite | Latitud Mínima Longitud Mínima [-20,925, -167,012], Latitud Máxima Longitud Máxima [11,667, 117,75] |
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Cobertura taxonómica
No hay descripción disponible
Especie | Liotipoma wallisensis, Liotipoma mutabilis, Liotipoma dimorpha, Liotipoma magna, Liotipoma lifouensis, Liotipoma solaris, Liotipoma splendida, Liotipoma clausa, Depressipoma kwajaleina, Depressipoma laddi, Rhombipoma rowleyana, Paraliotipoma sirenkoi |
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Cobertura temporal
Fecha Inicial / Fecha Final | 1946-01-01 / 2007-07-31 |
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Referencias bibliográficas
- Mclean, James Hamilton (2012): New species and genera of colloniids from Indo-Pacific coral reefs, with the definition of a new subfamily Liotipomatinae n. subfam. (Turbinoidea, Colloniidae). Zoosystema 34 (2): 343-376, DOI: 10.5252/z2012n2a10 http://dx.doi.org/10.5252/z2012n2a10
Metadatos adicionales
marine, harvested by iOBIS
Identificadores alternativos | https://nzobisipt.niwa.co.nz/resource?r=liotipomatinae |
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