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题名: A further record of the rare hippolytid shrimp Leontocaris lar Kemp, 1906 (Decapoda: Caridea) from the Celtic Sea, off north-western France
作者: Tin-Yam Chan;Inge M. J. Van Den Beld;Sammy DE Grave
贡献者: 國立臺灣海洋大學:海洋生物研究所
日期: 2016-03
上传时间: 2017-12-28T08:39:05Z
出版者: Crustaceana
摘要: Abstract:Members of the deep-sea caridean shrimp genus Leontocaris Stebbing, 1905(family Hippolytidae Spence Bate, 1888) have a very peculiar major secondcheliped with a massive palm bearing a tympanum and a blade-like dactylus,probably related to an as yet unknown predatory behaviour (Taylor & Poore,1998; Fransen, 2001; Poore, 2009). Currently nine species are known in thegenus (De Grave & Fransen, 2011; Cardoso & Fransen, 2012). In North Atlanticwaters only one species, Leontocaris lar Kemp, 1906 has been reported and upto now, remains only known from three specimens collected off Ireland morethan a century ago (Kemp, 1906, 1910; d’Udekem d’Acoz, 1999). The rarity ofthis species, and indeed all known species in the genus, is likely due to theseshrimps inhabiting deep-sea coralline habitats, which are very difficult to sampleby conventional means (Kemp, 1906, 1910; Taylor & Poore, 1998; Fransen,2001; Poore, 2009; Ahyong, 2010; Cardoso & Fransen, 2012). In 2011, duringa ROV “Victor6000” dive of the “BobEco” cruise carried out on board the RV“Pourquoi Pas?” (chief scientist: S. Arnaud-Haond, Ifremer), a further specimenwas collected in the Celtic Sea off north-western France, allowing for a betterunderstanding on the characteristics and ecology of this rare species. In situobservation of L. lar confirms for the first time its association with antipathariancorals. A close examination of the present specimen reveals that the recentlydescribed Leontocaris smarensis Cardoso & Fransen, 2012, from the South Mid-Atlantic Ridge is extremely similar to L. lar, potentially being a synonym of L. lar.
The specimen described in this work is deposited in the collection of theMuséum National d’Histoire Naturelle, Paris (MNHN). Carapace length (cl) ismeasured dorsally from the posterior part of the orbit to the posterior margin of thecarapace.
關聯: 89(2), pp.251-257
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/45111
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