Rare Species and Their Genus of Crabs in Japan

Takeru, Sakai

doi:10.18353/rcustacea.15.0_1

Cited by 25 publications

(39 citation statements)

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“…The species has spread northwards and southwards, and has been recorded in eastern North America and South Australia, although permanent populations were unlikely to become established in some locations (Carlton and Cohen 2003). However, a global dispersion has been taking place for the last 25 years to areas as distant as Japan (Sakai 1986), western North America (Cohen et al 1995), South Africa (Le Roux et al 1990), and the Patagonian Atlantic coast. In regard to the latter, the species was found along the central coasts of San Jorge Gulf (45°55' S) in 2001 (Vinuesa 2005), and in Camarones Bay, north to San Jorge Gulf (approximately 44°54' S), in 2003 (Hidalgo et al 2005).…”

mentioning

confidence: 99%

Molt and reproduction of the European green crab Carcinus maenas (Decapoda: Portunidae) in Patagonia, Argentina

Vinuesa¹

2005

RBT

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Abstract:The green crab Carcinus maenas, a decapod crustacean native to the northeastern Atlantic, has been invading distant areas, mainly for the last 25 years. This species is currently distributed along the coasts of the northeastern Pacific, South Africa, Japan, South Australia, Tasmania, and western and eastern North America, among others. Here we provide information on the biology of the green crab occurring in the central area of San Jorge Gulf, Argentina, where it has been established since 1999-2000. Crabs of both sexes were hand-collected between January 2004 and May 2005 from the intertidal zone and the upper sublittoral fringe. Sex, carapace width and molting stage were recorded. The reproductive status of males was based on the presence of sperm and spermatophores in testes and deferent ducts, and that of females on ovarian development and presence-absence of eggs. Stages of embryonic development for ovigerous females were also recorded. The most important physiological events taking place during the annual cycle of the adult population were as follows: (1) male molt occurred mainly in November and female molt between January and the beginning of March; (2) the reproductive season started in January, after a courtship in which the male, larger in size, holds the female until the molt, and spermatophores are ejaculated once the old exoskeleton is cast off; (3) females left the intertidal zone early and moved to lower littoral levels during fall and winter; (4)

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mentioning

confidence: 99%

Molt and reproduction of the European green crab Carcinus maenas (Decapoda: Portunidae) in Patagonia, Argentina

Vinuesa¹

2005

RBT

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“…In a poorly known paper, the late Tune Sakai (1986) established a new epialtid genus (as Majidae at the time), Goniopugettia, for two species: Pugettia sagamiensis Gordon, 1930, and Goniopugettia tanakae Sakai, 1986, both from Japan. Without reference to Sakai (1986), Griffin & Tranter (1986) transferred Pugettia sagamiensis to Rochinia A. Milne-Edwards, 1875, and this was followed by Tavares (1991) and Huang & Hsueh (1998).…”

Section: Introductionmentioning

confidence: 99%

“…Without reference to Sakai (1986), Griffin & Tranter (1986) transferred Pugettia sagamiensis to Rochinia A. Milne-Edwards, 1875, and this was followed by Tavares (1991) and Huang & Hsueh (1998). Ng et al (2001) recognized Goniopugettia as a valid genus, and this action has since been followed by later workers (e.g., Taishaku & Konishi, 2001;Komatsu & Takeda, 2003;Takeda & Komatsu, 2005;Ng et al, 2008;Lee et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Ng et al (2001) recognized Goniopugettia as a valid genus, and this action has since been followed by later workers (e.g., Taishaku & Konishi, 2001;Komatsu & Takeda, 2003;Takeda & Komatsu, 2005;Ng et al, 2008;Lee et al, 2017). As T. Sakai (1986) did not select a type species for Goniopugettia, Ng et al (2008) designated G. tanakae Sakai, 1986, as the type species.…”

Section: Introductionmentioning

confidence: 99%

“…The identity of G. tanakae Sakai, 1986, however, is uncertain and it has never been reported since its original description. Tune Sakai (1986: 2) described G. tanakae briefly as the second species in Goniopugettia, but did not indicate how it differed from G. sagamiensis. Sakai (1986: frontispiece fig. 3) provided one figure of G. tanakae, which depicted a distinctive animal with pronounced lateral carapace protuberances.…”

Section: Introductionmentioning

confidence: 99%

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On the trail of a Japanese “ghost species”—the identity of <i>Goniopugettia tanakae</i> Sakai, 1986, and the establishment of a new genus for <i>Pugettia sagamiensis</i> Gordon, 1930 (Decapoda, Brachyura, Epialtidae)

Komai

Sato

2017

Crust Res

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Abstract. The majoid genus Goniopugettia Sakai, 1986, was established to include a new species Goniopugettia tanakae Sakai, 1986, as well as Pugettia sagamiensis Gordon, 1930. Although Goniopugettia tanakae Sakai, 1986, was subsequently designated as the type species of the genus by Ng et al. (2008), the identity of this species has been shrouded in uncertainty because it was supposedly common according to the original description, but has never been reported since its discovery. The type material is also confusing because it appears that Sakai used the name for two different species, one of which is G. sagamiensis. The identity of G. tanakae is clarified after the discovery of several syntypes which confirms that the type series contains two species. A lectotype is here chosen that fixes the identity of Goniopugettia tanakae and Goniopugettia. As a consequence of this action, a new genus has to be established for Pugettia sagamiensis here named Tunepugettia. LSID urn:lsid:zoobank.org:pub:327B79AD-873A-44BA-9632-596E99DFD066

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