7.3.1.3. Fauveliopsidae Hartman, 1971

Zhadan, A.E.; Salazar-Vallejo, S.I.

Авторы: Zhadan Anna E., Salazar-Vallejo Sergio I.
Сборник: G.Purschke, M.Boegemann, W.Westaheide (Eds). Handbook of Zoology. Annelida. Vol.1: Annelida Basal groups and Pleistoannelida, Sefentaria I
Том: 1
Глава в коллективной монографии
Год издания: 2019
Издательство: Walter de Gruyter GmbH & Co. KG
Местоположение издательства: Germany
Первая страница: 317
Последняя страница: 328
Аннотация: Introduction The name of the family is derived from Fauveliopsis McIntosh, 1922. The genus name was dedicated to Pierre Fauvel (1866-1958), a famous French polychaetologist, and the type species Fauveliopsis challengeriae McIntosh, 1922 was described with some specimens collected during the famous RV Challenger expedition. The history of classification of Fauveliopsidae is part of a recurrent process for some other abyssal organisms having a simplified morphology. Thus, Fauveliopsis was firstly considered as an aberrant flabelligerid and then, as a part of a compilation for the abyssal polychaetes, Hartman (1971), proposed to erect a new family. At that point of time, Fauveliopsidae contained some genera which were regarded as being closely related to Flabelligeridae: Bruunilla Hartman, 1971, Fauveliopsis, Flabelligella Hartman, 1965, and Flota Hartman, 1967. However, in a subsequent publication (Hartman 1974), the author apparently changed her view, since she again placed Fauveliopsis in Flabelligeridae. On the other hand, the other genera being originally regarded as belonging to Fauveliopsidae have been transferred elsewhere. Thus, Pettibone (1979) demonstrated that Bruunilla belongs in Polynoidae, Orensanz (1974) indicated that Flabelligella is a member of Acrocirridae, and Flota was used to propose an independent family by Buzhinskaya (1996). However, for the latter, it has recently been demonstrated to be a junior synonym to Buskiella McIntosh, 1885 and thus part of Flabelligeridae (Salazar-Vallejo & Zhadan 2007). Currently, the family comprises only two genera: Fauveliopsis McIntosh, 1922, and Laubieriopsis Petersen, 2000. These genera differ in the body integument, being opaque and variously rugose or papillate in Fauveliopsis, or transparent and smooth in Laubieriopsis. The chaetae are typically directed forward in the whole body of Fauveliopsis species, while in Laubieriopsis species only the first few chaetigers have chaetae in such an orientation. The number of chaetigers and their relative length also differ: in Fauveliopsis the number of chaetigers shows intraspecific variation and their relative length can change throughout the body, whereas Laubieriopsis species have a fixed number of chaetigers and their length is much less variable throughout the body. There are no published accounts on fossil fauveliopsids. However, since several species have been found to be associated with foraminferans, gastropods or scaphopods, one could expect some records once the fossils of the latter groups, which are very well represented among the fossil taxa, have been more carefully evaluated. Fauveliopsidae is a family entirely composed of benthic species that usually attain a low density in the silty bottoms which they inhabit. Most of the species come from the deep sea being part of the so called trench floor fauna (Menzies & George 1967); however, some shallow water species have been described from the Canary Islands (5 m), New Zealand (20 m), and from the Mediterranean (Adriatic Sea 60 m). Members of the family are either free-living or permanent residents in tubes (Blake & Petersen 2000; Blake & Petersen 2000); the tubes are built of cemented silt grains and, often, they are made inside the shell of dead scaphopod or gastropod mollusks or even inside some tubular foraminiferans (Bathysiphon Sars, 1872) (Fig. 7.15.3.1. A-F). Bereitgestellt
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