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Ranina ranina
Ranina ranina (Linnaeus, 1758)
Spanner crab
Ranina ranina
photo by Poppe, Guido and Philippe

Family:  Raninidae (frog crabs)
Max. size:  17.5 cm CL (male/unsexed); 12 cm CL (female); max.weight: 900.0 g; max.weight: 400.0 g
Environment:  reef-associated; marine; depth range 1 - 200 m
Distribution:  Indo-Pacific: From East Africa, Japan to Australia and Hawaii.
Diagnosis:  Carapace very elongate, much longer than broad; anterior part much broader than narrow, posterior waist-like. Abdomen clearly visible from dorsal view. Chelae greatly outsized in males; chelae and legs laterally flattened, spade-like. Color: orange to red overall.
Biology:  Minimum depth from Ref. 114541. Maximum length (umsexed) from Ref. 85185. Occupies the sublittoral zone (Ref. 77016). Occurs at depths greater than 100 m in open sandy areas (Ref. 343) in which they bury (Ref. 106934). Feeds on a variety of worms and soft shelled mollusks (Ref. 343).
IUCN Red List Status: Not Evaluated (N.E.) Ref. 123251)
Threat to humans: 
Country info:   
 

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