Détail de la notice
Titre du Document
Northeastern Pacific sacoglossan opisthobranchs: Natural history review, bibliography, and prospectus
Auteur(s)
TROWBRIDGE Cynthia D.
Résumé
The species richness and geographic ranges of the sacoglossan (synonym: ascoglossan) opisthobranch fauna have been well characterized for northeastern Pacific shores, particularly in the Californian province, but the natural history and ecology of these gastropods have been comparatively less well studied. Over half of the described sacoglossan genera and approximately two-thirds of the families are represented on northeastern Pacific shores. At least 25 species of sacoglossans occur: eighteen species are known stenophagous herbivores, and one feeds on opisthobranch eggs. Eight species occur on cold-temperate northeastern Pacific shores, 19 species inhabit the Gulf of California and warm-temperate to tropical Pacific shores, and four species occur in the Aleutian, Oregonian, Californian, and Panamic provinces. Five of the species have been studied appreciably more than the others: Elysia hedgpethi (Marcus, 1961), Alderia modesta (Lovén, 1844), Placida dendritica (Alder & Hancock, 1843), Aplysiopsis enteromorphae (Cockerell & Eliot, 1905), and Stiliger fuscovittatus Lance, 1962. The paucity of study on other species is not necessarily due to low abundance. This natural history review of the regional sacoglossan fauna synthesizes the scattered literature about the stenophagous gastropods and highlights the major gaps that malacologists should seek to fill in the study of this highly specialized order. Future research should focus more on the autecology, population ecology, and
Editeur
California Malacozoological Society
Identifiant
ISSN : 0042-3211 CODEN : VLGHAL
Source
The Veliger A. 2002, vol. 45, n° 1, pp. 1-24 [24 pages]
Langue
Anglais
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