Malacostraca | Decapoda
Environment / Climate / Range
Benthic; brackish. Subtropical; 18°S - 40°S, 144°E - 154°E (Ref. 4)
Indo-West Pacific: Australia.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cmCommon length : 6.0 cm TL male/unsexed; (Ref. 4); max. reported age: 2 years (Ref. 2823)
Rostrum a short, blunt and wide triangle, far overreached by the squarish eyes (almost with their full length). No antennal spine, but antennal angle low, broad and rounded. Antennular peduncle reaching with more than half the length of the third segment beyond the antennal peduncle. Third maxilliped with merus and ischium strongly widened, forming an operculum; distal three segments all narrow, each three times or more longer than wide. Large chela in adult male with deep concavity in the anterior margin of the palm just above the base of the fixed finger. Carpus about as long as the palm and slightly longer than high. Merus with a large, curved, bluntly rounded lobe in the basal part of the lower margin. Telson quadrangular, longer than wide with broadly rounded posterolateral angels, without spines. Endopod or uropod broadly oval, only slightly longer than telson (Ref. 4).
It has a total body length of 1.5 to 6 cm (Ref. 4). It is found on intertidal sand or mud flats, often in or near estuaries. They burrow in the soft substratum (Ref. 4). Members of the order Decapoda are mostly gonochoric. Mating behavior: Precopulatory courtship ritual is common (through olfactory and tactile cues); usually indirect sperm transfer (Ref. 833).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Members of the order Decapoda are mostly gonochoric. Mating behavior: Precopulatory courtship ritual is common (through olfactory and tactile cues); usually indirect sperm transfer.
Holthuis, L.B. 1991. (Ref. 4)
IUCN Red List Status (Ref. 115185)
CITES status (Ref. 108899)
Threat to humans
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Estimates of some properties based on models
): 15.4 - 26, mean 24.1 (based on 129 cells).