Cymonomid crabs of the MAINBAZA Expedition (Decapoda: Brachyura)

Ahyong, Shane T.

doi:10.11646/zootaxa.3821.3.7

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…Prior to the present study, 35 species of Cymonomus were known worldwide, with highest diversity in the Indo-West Pacific (Ng et al, 2008;De Grave et al, 2009;Ahyong & Ng, 2017). In the last decade, new species of Cymonomus have been described from Australia (Ahyong & Brown, 2003), New Zealand (Ahyong, 2008), the Philippines , East Africa (Ahyong, 2014) and East Asia (Ahyong & Ng, 2017). To date, six species of Cymonomus have been recorded from New Zealand and Australia (Dell, 1971;Griffin & Brown, 1976;Ahyong & Brown, 2002;Ahyong, 2008).…”

Section: Introductionmentioning

confidence: 99%

The cymonomid crabs of New Zealand and Australia (Crustacea: Brachyura: Cyclodorripoida)

Ahyong¹

2019

Rec. Aust. Mus.

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886

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The cymonomid crabs of New Zealand and Australia are revised. Prior to the present study, three species each were known from New Zealand and Australia, respectively. Here, eight new species are described and the six previously known species are redescribed and refigured based on type material. Although based on few locality records, the New Zealand species of Cymonomus show north-south distributions corresponding to the Aupourian and Cookian Provinces, respectively, demarcated by the subtropical convergence in the vicinity of the Chatham Rise. Notably, the New Zealand species, C. clarki, is the southernmost occurring cymonomid worldwide. Most Australian records of Cymonomus are from southern waters; few are known from northern Western Australia or Queensland, and none from the Northern Territory, probably reflecting limited sampling effort. One new species from Tasmania is unique in Cymonomus in having transparent, well-defined corneas, rather than opaque-translucent corneal surfaces that are undifferentiated from surrounding cuticle. The New Zealand and Australian species of Cymonomus belong to species groups that range widely in the Indo-West Pacific, or even globally; whether these groups represent natural divisions awaits revision of the Atlanto-East Pacific cymonomid fauna. A key to the species of Cymonomus from New Zealand and Australia is provided.

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Section: Introductionmentioning

confidence: 99%

The cymonomid crabs of New Zealand and Australia (Crustacea: Brachyura: Cyclodorripoida)

Ahyong¹

2019

Rec. Aust. Mus.

Self Cite

886

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“…It also includes one species from the Late Eocene of Hungary, C. primitivus Müller & Collins, 1991. A number of descriptive and distributional accounts over the last two decades have markedly expanded documented diversity of Cymonomus in Indo-Pacific waters (Ahyong & Brown 2003;Ahyong 2008Ahyong , 2014Ahyong , 2019Ahyong et al 2020;Ahyong & Ng 2009, 2011, 2017Takeda et al 2021;Ahyong & Ng 2023). The Atlanto-Mediterranean/East Pacific species of Cymonomus are under revision by one of us (MT) so that further additions are anticipated in the course of this effort, as well as range extensions building on previous work (Tavares 1991(Tavares , 1993a(Tavares , 1994Campos Junior 1997).…”

Section: Genusmentioning

confidence: 99%

A new species of Cymonomus A. Milne-Edwards, 1880, from the deep waters of the Gulf of Mexico (Crustacea: Brachyura: Cymonomidae)

FELDER,

TAVARES

2024

Zootaxa

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A new western Atlantic member of the cymonomid crab genus, Cymonomus A. Milne-Edwards, 1880, is described from the continental slope in the northern Gulf of Mexico. While the only two available specimens are poorly preserved and lack appendages, they are clearly distinct from other known members of the genus on the basis of the subangular anterolateral margin of the carapace paired with nearly straight, untapered eyestalks that terminate in a slightly bulbous, well-defined cornea, and antennal peduncles that reach beyond the second article of the antennular peduncle. Despite extensive collecting efforts in adjacent waters, the specimens remain known from only the type locality at 850 m depth.

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Annotated and updated checklist of marine crabs (Decapoda: Brachyura) of Mozambique supported by morphological and molecular data from shelf and slope species of the “MOZAMBIQUE” surveys

Muñoz¹,

García-Isarch²,

Cuesta

2021

Zootaxa

442

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An updated checklist of Mozambican marine brachyuran crabs is generated based on an exhaustive revision of the existing literature, together with the additional records provided by the specimens collected throughout the three “MOZAMBIQUE” surveys carried out in Mozambican waters during three consecutive years (2007–2009) by the Instituto Español de Oceanografía, (Spanish Institute of Oceanography, IEO). A total of 269 species, grouped in 15 superfamilies, 26 families and 172 genera are reported in the checklist, and a detailed inventory is produced with the list and remarks about the brachyuran species collected. Thirty-nine crab species belonging to 19 families were identified based on morphological characteristics and/or genetic tools. DNA barcode sequences (16S rRNA and/or COI) were obtained for 37 species, including 16S and COI sequences that are new for 26 and 14 species, respectively. Colour photographs of fresh specimens illustrate the comments about most species, being the first time that the original colour pattern is described for some of them. New records in Mozambican waters are reported for the species Paromolopsis boasi, Mursia aspera, Carcinoplax ischurodous, Tanaoa pustulosus, Euclosiana exquisita, Oxypleurodon difficilis, Naxioides robillardi, Samadinia galathea, Cyrtomaia gaillardi, Paramaja gibba, Pleistacantha ori, Parathranites granosus, Parathranites orientalis, Ovalipes iridescens and Charybdis smithii, and second records for Moloha alcocki, Samadinia pulchra and Charybdis africana. In addition, Raninoides crosnieri, S. galathea and P. ori were collected for the first time after their descriptions. The female of Samadinia galathea is described for the first time, and a potential new species of Mursia is reported. Some records expand the known bathymetric range of certain species and/or their general distribution. New molecular and morphological data suggest the necessity of the revision of P. boasi, R. crosnieri, C. africana and the genera Platymaia and Carcinoplax. The variability and taxonomic validity of some morphological characters in brachyuran systematic is discussed.

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Cymonomid crabs of the MAINBAZA Expedition (Decapoda: Brachyura)

Cited by 3 publications

References 5 publications

The cymonomid crabs of New Zealand and Australia (Crustacea: Brachyura: Cyclodorripoida)

The cymonomid crabs of New Zealand and Australia (Crustacea: Brachyura: Cyclodorripoida)

A new species of Cymonomus A. Milne-Edwards, 1880, from the deep waters of the Gulf of Mexico (Crustacea: Brachyura: Cymonomidae)

Annotated and updated checklist of marine crabs (Decapoda: Brachyura) of Mozambique supported by morphological and molecular data from shelf and slope species of the “MOZAMBIQUE” surveys

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