On some maerid and melitid material (Crustacea: Amphipoda) collected by the Hourglass Cruises (Florida). Part 2: GeneraDulichiellaandElasmopus, with a key to worldElasmopus

Vader, Wim; Krapp-Schickel, Traudl

doi:10.1080/00222933.2011.652984

Cited by 12 publications

(6 citation statements)

References 13 publications

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“…According to Vader and Krapp-Schickel (2012) and WORMS (Lowry 2014a), the Elasmopus genus contains more than 100 valid species around the world, living mostly in warm shallow waters among algae and epifauna. Six of them are known from European waters (European Register of Marine Species; see Lowry 2014b): E. rapax Costa, 1853, E. brasiliensis (Dana, 1853, E. pectenicrus (Bate, 1862), E. pocillimanus (Bate, 1862), E. perditus Reid, 1951 andE.…”

Section: Introductionmentioning

confidence: 99%

Elasmopus thalyae sp. nov. (Crustacea: Amphipoda: Maeridae), a new benthic species from soft and hard bottoms of Arcachon Bay (SE Bay of Biscay)

Gouillieux

Sorbe²

2015

Zootaxa

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A new species of Elasmopus is described and figured from specimens collected in different benthic communities of Arcachon Bay. It can be distinguished from its closest relative E. rapax by the palmar ornamentation of male gnathopod 2 propodus (shelf and 2 teeth). It preferentially lives on hard bottoms (in mussel fouling of navigation buoys, Sabellaria spinulosa reefs, algal rocky bottoms, Laminaria and Saccorhiza bulbs and as epibiont on the carapace of Maja brachydactyla) but also less abundantly on naked sandy bottoms. An identification key of Atlantic and Mediterranean European species is also given.

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Section: Introductionmentioning

confidence: 99%

Elasmopus thalyae sp. nov. (Crustacea: Amphipoda: Maeridae), a new benthic species from soft and hard bottoms of Arcachon Bay (SE Bay of Biscay)

Gouillieux

Sorbe²

2015

Zootaxa

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“…The genus Elasmopus Costa, 1853 is the most diverse genus in the family Maeridae Krapp-Schickel, 2008, roughly with 101 of the 328 species in the family distributed worldwide in temperate and tropical seas (Ahyong et al 2011, Vader andKrapp-Schickel 2012). The species are mostly found on the continental shelf (≤ 200 m depth), mainly associated with macrophytobenthos (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Morphologically, two groups of species inside Elasmopus have been recognized by Vader and Krapp-Schickel (2012): the pectenicrus-group and the rapax-group. The rapax Costa, 1853 and Elasmopus thomasi Ortiz & Lalana, 1994.…”

Section: Introductionmentioning

confidence: 99%

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Elasmopus yucalpeten sp. n. (Crustacea, Amphipoda, Maeridae) from the northern Yucatan coast, with a key for the genus in the Gulf of Mexico and biogeographic comments

Paz-Ríos¹,

Ardisson²

2014

ZSE

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A new amphipod species of the genus Elasmopus Costa, 1853 is described and illustrated based on material collected in a harbor on the northern Yucatan coast, southern Gulf of Mexico. Elasmopus yucalpeten sp. n. is recognized from its congeners by a two-articulate accessory flagellum, a group of long robust setae on the anterodistal margin of the gnathopod 2 basis, a distomedial concave portion on palm of gnathopod 2 propodus, long setae on basis posterior margin of pereopods 5-7, and an entire telson. The differences among closely related species are pointed out and they are compared with the new species. An identification key to species of the genus Elasmopus in the Gulf of Mexico and biogeographic comments at the regional and global scales are also provided.

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“…The presence of variation in morphological characters among individuals of widely distributed species has baffled taxonomists (e.g., Elasmopus spp., see Vader & Krapp-Schickel, 2012; Jassa spp., see Conlan, 1990). Perceived variation leads to erection of subspecific eco-morphotypes and, occasionally, to erroneous identifications.…”

Section: Introductionmentioning

confidence: 99%

Geometric morphometry supports a taxonomic revision of the Mediterranean Bathyporeia guilliamsoniana (Spence Bate, 1857) (Amphipoda, Bathyporeiidae)

Curatolo

Calvaruso

Galil

et al. 2013

Crustac

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Bathyporeia guilliamsoniana (Spence Bate, 1857) specimens collected in the Levantine Basin of the Mediterranean Sea displayed polymorphism in some characters. More than 100 specimens were examined and their intra-specific variation in the shape of the third epimeral plate analysed and quantified. The morphometric geometry methodology is used to assess the 'cryptic' variation in shape which may obscure identification. The results support the assignment of sunnivae and megalops to morphotypes of B. guilliamsoniana sensu d'Udekem d' Acoz & Vader (2005).Key words. -Bathyporeia, geometric morphometry, eastern Mediterranean RIASSUNTO Individui di Bathyporeia guilliamsoniana (Spence Bate, 1857), campionati nel Mediterraneo orientale, sono risultati essere di particolare interesse per il polimorfismo fortemente accentuato nella forma di alcuni caratteri. Non a caso, recentemente il genere è stato oggetto di una revisione che ha messo in luce la presenza di morfotipi, fino a quel momento considerati ascrivibili al rango di specie. Nel presente lavoro l'approccio di morfometria geometrica viene portato come esempio di metodologia utile alla individuazione di quella variazione 'criptica' che spesso influenza la corretta identificazione delle specie. Su oltre cento individui, la profondità dell'incavo nell'angolo postero-distale del terzo epimero è stata messa in relazione con la lunghezza degli individui, senza discriminare raggruppamenti. I risultati supportano le forme sunnivae e megalops morfotipi di Bathyporeia guilliamsoniana in accordo con d'Udekem d' Acoz & Vader (2005).Parole chiave. -Bathyporeia, morfometria geometrica, Mediterraneo orientale

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On some maerid and melitid material (Crustacea: Amphipoda) collected by the Hourglass Cruises (Florida). Part 2: GeneraDulichiellaandElasmopus, with a key to worldElasmopus

Cited by 12 publications

References 13 publications

Elasmopus thalyae sp. nov. (Crustacea: Amphipoda: Maeridae), a new benthic species from soft and hard bottoms of Arcachon Bay (SE Bay of Biscay)

Elasmopus thalyae sp. nov. (Crustacea: Amphipoda: Maeridae), a new benthic species from soft and hard bottoms of Arcachon Bay (SE Bay of Biscay)

Elasmopus yucalpeten sp. n. (Crustacea, Amphipoda, Maeridae) from the northern Yucatan coast, with a key for the genus in the Gulf of Mexico and biogeographic comments

Geometric morphometry supports a taxonomic revision of the Mediterranean Bathyporeia guilliamsoniana (Spence Bate, 1857) (Amphipoda, Bathyporeiidae)

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