Cancridae

Belongs within: Heterotremata. The Cancridae are crabs with a broadly oval carapace bearing strongly convex, dentate anterolateral margins. <==Cancridae [Canceridae] |–Lobocarcinus Reuss 1857 [Lobocarcininae]GT01 | |–L. paulinowurtembergensis von Meyer 1847GT01 | `–L. pustulosusP98 `–Cancer Linnaeus 1758B64 |–C. aeneus Linnaeus 1758L58 |–C. antennarius Stimpson 1856CWH77 |–C. aretus Linnaeus 1758L58 |–C. astacus Linnaeus 1758L58 |–C. bernhardus Linnaeus… Continue reading Cancridae

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Categorised as Decapoda

Grapsinae

Belongs within: Grapsoidea. The Grapsinae are a group of shore crabs in which the inner half of the suborbital margin is dominated by the suborbital crest, with the true infraorbital margin ending far from the inner end of the suborbital. The Sally lightfoot Grapsus grapsus is a common species on the Pacific coast of Central… Continue reading Grapsinae

Grapsoidea

Belongs within: Brachyura.Contains: Grapsinae, Varuninae. The Grapsoidea are a diverse group of crabs including both terrestrial and aquatic taxa, with the highest diversity in the marine intertidal and supratidal zones. The group is poorly defined but members tend to have a rectangular carapace. Terrestrial adults are found in the families Gecarcinidae and Sesarmidae though only… Continue reading Grapsoidea

Alpheus

Belongs within: Alpheoidea. Alpheus is a genus of snapping shrimps bearing small epipods at the base of the first four pereopods. <==Alpheus Fabricius 1798D84 |–A. acutofemoratus Dana 1852TSH09 |–A. alcyone de Man 1902MG-H11 |–A. amethystea Risso 1826R26 |–A. armillatusM85 |–A. avarusL02 |–A. bicostatus de Man 1908J90 |–A. bouvieri Milne-Edwards 1878TSH09 |–A. bucephalus Coutière 1905TSH09 |–A.… Continue reading Alpheus

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Categorised as Decapoda

Palaemonidae

Belongs within: Caridea.Contains: Macrobrachium, Palaemonetes. The Palaemonidae are a group of shrimps with well-developed, prominent chelae on the first pair of pereiopods, as well as normal chelae on the second pair. They have been divided between the largely free-living Palaemoninae and the commensal Pontoniinae. Pontoniine species are associated with a variety of hosts including sponges,… Continue reading Palaemonidae

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Categorised as Decapoda

Stridentes

Belongs within: Achelata. The Stridentes are a clade of spiny lobsters possessing a stridulatory organ at the base of the antenna. The sound produced by this organ is used to deter potential predators. During reproduction, males spread a hardened or gelatinous spermatophoric mass across the posterior sternal segments of the female, from which sperm are… Continue reading Stridentes

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Categorised as Decapoda

Anomala

Belongs within: Reptantia.Contains: Paguroidea, Coenobitoidea, Lepidopinae, Albuneinae, Galatheidae, Porcellanidae. The Anomala (sometimes known as Anomura, a name that other authors would prefer to be associated with a larger grouping also includes the Thalassinida) include the hermit crabs, stone crabs and half crabs. In general, anomalans resemble true crabs (Brachyura) but have a less reduced abdomen.… Continue reading Anomala

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Categorised as Decapoda

Raninoida

Belongs within: Brachyura.Contains: Etyidae. The Raninoida or Archaeobrachyura are a group of crabs first recorded from the Cretaceous. They are characterised by the complete loss of the uropods, without even a modified remnant (Guinot & Tavares 2001). The Raninoidea camouflage themselves by burrowing into sediment whereas the Cyclodorippoidea may bury themselves or carry debris for… Continue reading Raninoida

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Categorised as Decapoda

Dromioidea

Belongs within: Brachyura.Contains: Dromiinae. The Dromioidea is a clade of crabs containing the families Dromiidae and Dynomenidae, though it has been suggested that one or both families may be para- or polyphyletic (Martin & Davis 2001). Depending on classification, the Homolodromiidae may also be included within the Dromioidea. The group is characterised by well-developed uropods… Continue reading Dromioidea

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Categorised as Decapoda

Heterotremata

Belongs within: Brachyura.Contains: Gecarcinucidae, Portunidae, Trichodactylidae, Geryonidae, Cancridae, Atelecyclidae, Hymenosomatidae, Inachidae, Epialtidae, Majidae, Pisidae, Parthenopidae, Dorippoidea, Leucosiidae, Calappidae, Xanthidae, Trapeziidae, Panopeidae, Goneplacidae, Menippidae, Pilumnidae. The Heterotremata are a diverse group of crabs, characterised by having the male gonopores coxal and the female gonopores sternal. Whether the Heterotremata are a monophyletic group, or paraphyletic with regard… Continue reading Heterotremata

Published
Categorised as Decapoda