Anomura: Families

P. McLaughlin, S. Ahyong & J.K. Lowry

Paguridae Latreille, 1802

Common name. Right handed-hermit crabs.

Description. Carapace cylindrical or subcylindrical or dorsoventrally flattened, carapace longer than wide or as long as or wider than long; carapace with linea anomurica; outer orbital spines absent; rostrum reduced, or absent. Eye cornea well developed, or reduced, or absent; ocular acicles present. Antenna 1 flagellum biramous. Maxilliped 3 bases widely separated; crista dentata present, or absent; accessory tooth present, or absent; dactylus simple.

Pereopod 1 chelate; cheliped equal or subequal, or right largest. Pereopods 2 to 4 pereopods 2 and 3 similar, perepod 4 greatly reduced; 2-4 with basis and ischium fused; dactyli of pereopods 2 to 3 simple. Pereopod 3 about the same length as pereopod 2, or noticably longer than pereopod 2, or shorter than pereopod 2; pereopods 3 dactyli and propodi of right and left similar, or dactyli and propodi of right and left dissimilar. Pereopod 4 simple, or chelate. Sternum partially divided; sternite of pereopod 5 reduced, widely separated from preceding sternite; somite of pereopod 5 not fused with first abdominal somite, or somite of pereopod 5 fused with first abdominal somite.

Abdomen well developed, carried posteriorly or reduced, carried posteriorly or reduced, carried under thorax, abdomen with distinct somites or with indistinct somites. Epimera (pleura) absent. Male pleopods 3-5 unpaired; none modified as gonopods, or pleopod 1 with one or both modified as gonopods, or pleopod 2 with one or both modified as gonopods, or pleopods 1 and 2 modified as gonopods. Male with no other sexual modifications, or with sexual tube(s), or with gonopores masked by tuft(s) of setae, or with single gonopore, or with indications of female gonopores; female with no sexual modifications, or with single gonopore, or with first pleopods paired and modified as gonopods. Uropods present, uropods positioned ventrolaterally, not forming tailfan; rami with propodal rasps. Telson present, entire or partially divided longitudinally.

Larval development. Anamorphic, or metamorphic.

Superfamily composition. Paguroidea.

Generic composition. Anapagurus Henderson, 1886; Acanthopagurus, Agarigochirus Mclaughlin, 1981; Alainopagurus, Alainopaguroides McLaughlin, 1997; Alloeopagurodes, Anapagrides, Anapagurus, Anisopagurus, Bathypaguropsis McLaughlin, 1994; Catapagurus A. Milne-Edwards, 1880; Catapaguroides A. Milne-Edwards & Bouvier, 1892; Ceratopagurus Yokoya, 1933; Cestopagurus Bouvier, 1897; Decaphyllus, Diacanthurus McLaughlin & Forest, 1997; Discorsopagurus McLaughlin, 1974; Elassochirus Benedict, 1892; Enallopagurus Mclaughlin, 1981; Enallopaguropsis Mclaughlin, 1981; Enneobranchus, Enneopagurus, Enneophyllus, Forestopagurus, Goreopagurus McLaughlin, 1988; Haigia, Icelopagurus McLaughlin, 1997, Iridopagurus, Labidochirus Provenzano, 1968; Lithopagurus Provenzano, 1968; Lophopagurus McLaughlin, 1981; Manucomplanus, Michelopagurus McLaughlin, 1997; Micropagurus McLaughlin, 1986; Munidopagurus A. Milne-Edwards, 1893; Nematopagurus A. Milne-Edwards & Bouvier, 1892; Nematopaguroides, Ostraconotus A. Milne-Edwards, 1880; Orthopagurus Stevens, 1927; Paguridium, Paguritta Melin, 1939; Pagurixus Melin, 1939; Pagurus Fabricius, 1775; Pagurodes Henderson, 1888; Pagurojacquesia de Saint Laurent & McLaughlin, 1999; Parapagurodes McLaughlin & Haig, 1973; Phimochirus McLaughlin, 1981; Porcellanopagurus McLaughlin, 1997; Propagurus McLaughlin & de Saint Laurent, 1998; Protoniopagurus, Pseudopagurodes, Pygmaeopagurus, Pylopagurus A. Milne-Edwards & Bouvier, 1891; Pylopaguridum, Pylopaguropsis Alcock, 1905; Rhodochirus McLaughlin, 1980; Scopaeopagurus, Solenopagurus, Solitariopagurus McLaughlin, 1997; Spiropagurus Stimpson, 1858; Tarrasopagurus, Tomopagurus A. Milne-Edwards & Bouvier, 1893; Tomopaguropsis Alcock, 1905; Tomopaguroides Balss, 1926; Trichopagurus, Turleania, Xylopagurus A. Milne-Edwards, 1880.

Habitat. Marine.

Distribution. Worldwide except Arctic and Antarctic.

Cite this publication as: ' McLaughlin, P., S. Ahyong & J.K. Lowry (2002 onwards). 'Anomura: Families.' Version: 2 October 2002.'.