Malacostraca | Decapoda
Holthuis, L.B. 1991. (Ref. 4)
Size / Weight / Age
Max length : 16.0 cm TL male/unsexed; (Ref. 4); common length : 10.0 cm TL male/unsexed; (Ref. 4)
Benthic; depth range 0 - 444 m (Ref. 101469), usually 4 - 50 m (Ref. 4)
Climate / Range
Subtropical; 52°N - 26°N, 33°W - 37°E (Ref. 4)
Western Indian Ocean, Eastern Atlantic and the Mediterranean: Off Madeira, the Canary Islands and along the Atlantic coast of Morocco as far south as Agadir; the Azores, throughout the Mediterranean (but not in the Black Sea) and along the Atlantic coast of Europe to the English Channel.
Carapace with 3 distinct acute teeth in the median line before the cervical groove (the gastric, pregastric and rostral teeth). Region between the postrostral and branchial carinae with only a few tubercles, and with extensive smooth areas. Abdomen without a sharp median ridge, but each of somites 2 to 5 with an elongate lobulate figure in the middle. The exposed part of somites 2 to 5 with an arborescent arrangement of very narrow grooves. Somite 1 with a complete transverse groove, behind which there are numerous short longitudinal grooves that are rather irregular in shape, may divide and sometimes are interconnected by transverse grooves; this posterior half of somite 1 of equal length throughout its width, not longer in the middle that at the sides. The smooth anterior half of the abdominal somites 2 to 6 (i.e. the part of the somite that disappears under the previous somite when the abdomen is fully stretched) without any indication of grooves or rows of hairs. Fourth segment of antenna with a single oblique median carina. Outer margin of the segment with 2 teeth, the inner margin with 3 or 4 (not including the apical tooth). Thoracic sternum anteriorly V-shapedly incised in the middle. A blunt and low median tubercle on the last thoracic sternite; this tubercle somewhat flattened posteriorly. Dactyli of legs without fringes of hair. Color: Reddish brown with a dark brown pubescence; A dark brown, not sharply delimited spot in the center part of the abdominal somite 1; Segments of the pereiopods with a dark blue band each.
Subtidal (Ref. 105316). Occurs at a depth range from 4 to 50 m, on rocky or muddy substrates, and also in Posidonia prairies. Ovigerous females from February to April (Ref. 4). Also found in artificial reefs where Posidonia meadows are being restored (Ref. 102863). Detritus feeder and omnivore (Ref. 107055). Ovigerous females from February to April (Ref. 4).
IUCN Red List Status (Ref. 114614)
CITES status (Ref. 94142)
Threat to humans
Fisheries: minor commercial
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Estimation of some characteristics with mathematical models
Low vulnerability (10 of 100)