The families and genera of marine gammaridean Amphipoda (except marine gammaroids). Part 2

Barnard, J. L.; Karaman, Gordan S.

doi:10.3853/j.0812-7387.13.1991.367

Cited by 325 publications

(181 citation statements)

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“…However, Barnard (1964), and many more recent works (e.g. Thurston 1990, Barnard and Karaman 1991, Thurston et al 2001) have again treated P. coecum as a valid species, a decision with which we agree. Paracallisoma coecum can be differentiated from P. alberti by following characters: gnathopod 1 coxa much longer than wide, margins slightly tapering distally (coxa slightly longer than wide, margins subparallel in P. alberti); gnathopod 1 propodus margins tapering distally (gnathopod 1 propodus margins subparallel in P. alberti); gnathopod 2 propodus subovate, palm transverse to slightly acute, dactylus fitting palm (gnathopod 2 propodus diverging distally, palm acute, dactylus shorter than palm in P. alberti).…”

Section: Paracallisoma Coecum (Holmes 1908)supporting

confidence: 65%

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A review of the scopelocheirid amphipods (Crustacea, Amphipoda, Lysianassoidea), with the description of new taxa from Australian waters

Kilgallen¹,

Lowry²

2015

ZSE

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Scopelocheiridae is a small family of scavenging lysianassoid amphipods. There is a distinct shallow water group (Scopelocheirinae subfam. n.) and a distinct deep-sea group (Paracallisominae subfam. n.). We catalogue three genera and eight species in the scopelocheirines and move Scopelocheirus onagawae Takekawa & Ishimaru, 2000 to the genus Aroui. The deep-sea paracallisomines are not often collected and consequently their morphological diversity is not well understood. We catalogue seven genera and 15 species. We provide diagnostic descriptions and a key to all genera in the Scopelocheiridae. We describe two new genera, Austrocallisoma gen. n. and Tayabasa gen. n., and three new species from Australian waters, Austrocallisoma jerryi sp. n., Paracallisoma woolgoolga sp. n. and P. zivianii sp. n.

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Section: Paracallisoma Coecum (Holmes 1908)supporting

confidence: 65%

“…Barnard and Karaman (1991) considered Bathycallisoma to be a junior synonym of Scopelocheirus, however our re-diagnosis of Scopelocheirus excludes Bathycallisoma from the Scopelocheirinae on the basis of its flaplike molar. We consider it to be a valid genus, placed in the Paracallisominae.…”

Section: Included Species Scopelocheirus Includes Three Speciesmentioning

confidence: 99%

A review of the scopelocheirid amphipods (Crustacea, Amphipoda, Lysianassoidea), with the description of new taxa from Australian waters

Kilgallen¹,

Lowry²

2015

ZSE

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“…Generally any species with either weak rostrum, poorly developed eyes, or straight article 2 of the mandibular palp were placed in Bathymedon, whereas those with well developed rostrum and eyes, and strongly bowed article 2 of the mandibular palp were placed in Westwoodilla. Nevertheless, Barnard (1961) and Barnard and Karaman (1991) cast doubts about the independence of both genera, as some species are known to display mixtures of the putatively generic diagnostic characters.…”

Section: Differential Diagnosismentioning

confidence: 99%

“…The genus Bathymedon currently embraces 24 species (see Barnard and Karaman, 1991 Barnard, 1962;andB. flebilis J.L.…”

Section: Differential Diagnosismentioning

confidence: 99%

“…The family is widely diversified -about 38 recognized genera (see Barnard and Karaman, 1991;Bousfield and Chevrier, 1996) -and distributed worldwide from the littoral to the abyss, with an apparent preference for bathyal/abyssal depths (Barnard and Karaman, 1991). No less than 24 species pertaining to 10 genera have been reported so far from the Mediterranean, mainly from bathyal floors in the western basin (Ledoyer, 1982;Bellan-Santini, 1983;Cartes and Sorbe, 1993).…”

Section: Introductionmentioning

confidence: 99%

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Jaume¹,

Cartes²,

Sorbe³

1998

Sci. Mar.

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SUMMARY: Bathymedon longirostris sp. nov. (Amphipoda: Oedicerotidae) from the western Mediterranean bathyal suprabenthos is described. It is characterised by the well-developed rostrum; the discrete lateral lobe of head; the elongation of the peduncle segment 3 of the first antenna; the very slender propodus of the second gnathopod, which attains maximum width not at the palm angle, but at about midway along the palm margin; and by the relative length of the carpus of the foregoing limb, sub-equal to propodus. The discovery of a tiny remnant of the 2nd peduncle segment of the first antenna in the new species is commented with regard to the homologation of the peduncle segments in other members of the Family. The new taxon was captured below 593 m over muddy bottoms with pteropod shells and remains of planktonic foraminiferans. It was one of the most common amphipods in the lower slope (below ~ 1000 m), whereas in the depth range comprised between 1250 and 1859 m it was the second dominant species, representing 11.4 % of the total gammarideans captured. The area studied harbours three additional congeneric species, although their populations are mainly concentrated in the upper and middle slope. Over the bottom, adult males of the new species apparently tend to occupy higher levels beyond the watersediment interface than the rest of demographic categories. The gut content of three individuals revealed a bulk of calcified foraminiferans, a diet in consonance with their massive mandibles. Juvenile individuals were more abundant in winter, whereas adult individuals were clearly dominant in summer, thus suggesting the biological cycle of the species follows some type of periodicity.

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Stages of embryonic development in the amphipod crustacean,Parhyale hawaiensis

Browne

Price

Gerberding

et al. 2005

genesis

156

180

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Studying the relationship between development and evolution and its role in the generation of biological diversity has been reinvigorated by new techniques in genetics and molecular biology. However, exploiting these techniques to examine the evolution of development requires that a great deal of detail be known regarding the embryonic development of multiple species studied in a phylogenetic context. Crustaceans are an enormously successful group of arthropods and extant species demonstrate a wide diversity of morphologies and life histories. One of the most speciose orders within the Crustacea is the Amphipoda. The embryonic development of a new crustacean model system, the amphipod Parhyale hawaiensis, is described in a series of discrete stages easily identified by examination of living animals and the use of commonly available molecular markers on fixed specimens. Complete embryogenesis occurs in 250 h at 26 degrees C and has been divided into 30 stages. This staging data will facilitate comparative analyses of embryonic development among crustaceans in particular, as well as between different arthropod groups. In addition, several aspects of Parhyale embryonic development make this species particularly suitable for a broad range of experimental manipulations.

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The families and genera of marine gammaridean Amphipoda (except marine gammaroids). Part 2

Cited by 325 publications

References 0 publications

A review of the scopelocheirid amphipods (Crustacea, Amphipoda, Lysianassoidea), with the description of new taxa from Australian waters

A review of the scopelocheirid amphipods (Crustacea, Amphipoda, Lysianassoidea), with the description of new taxa from Australian waters

Untitled

Stages of embryonic development in the amphipod crustacean,Parhyale hawaiensis

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