Anomura: Families

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

Lithodidae Samouelle, 1819

Common name. Stone and king crabs.

Description. Carapace dorsoventrally flattened, carapace as long as or wider than long; carapace with linea anomurica; outer orbital spines absent; rostrum overreaching distal corneal margin, or not overreaching bases of corneas. Eye cornea well developed; ocular acicles absent. Antenna 1 flagellum biramous. Maxilliped 3 bases widely separated; crista dentata present; accessory tooth present; dactylus simple.

Pereopod 1 chelate; cheliped right largest. Pereopods 2 to 4 pereopods 2 to 4 all of similar form; 2-4 with basis and ischium fused; dactyli of pereopods 2 to 3 simple. Pereopod 3 about the same length as pereopod 2; pereopods 3 dactyli and propodi of right and left similar. Pereopod 4 simple. Sternum partially divided; sternite of pereopod 5 reduced, contiguous with preceding sternite; somite of pereopod 5 not fused with first abdominal somite, or somite of pereopod 5 fused with first abdominal somite.

Abdomen reduced, carried under thorax, abdomen with distinct somites. Epimera (pleura) absent. Male pleopods 3-5 absent; none modified as gonopods. Male with no other sexual modifications; female with first pleopods paired and modified as gonopods. Uropods absent. Telson present, entire.

Larval development. Metamorphic.

Superfamily composition. Paguroidea.

Generic composition. Acatholithodes, Cryptolithodes Brandt, 1848; Dermaturus Brandt, 1850; Glyptholithodes Faxon, 1895; Hapalogaster Brandt, 1850; Lithodes Latrielle, 1806; Lopholithodoes Brandt, 1848; Neolithodes A. Milne-Edwards & Bouvier, 1894; Oedignathus Paralithodes Brandt, 1848; Paralomis White, 1856; Phyllolithodes, Placetron, Rhinolithodes Brandt, 1848; Sculptolithodes.

Habitat. Marine.

Distribution. Worldwide.

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