Elasmobranchii (sharks and rays) > Rajiformes
(Skates and rays) > Rajidae
Etymology: Cruriraja: Latin, crur, cruris = pertaining to a leg + Latin, raja = a ray (Raja sp) (Ref. 45335).
Environment / Climate / Range
Marine; bathydemersal; depth range ? - 859 m (Ref. 5578). Deep-water, preferred ?; 28°S - 32°S
Southeast Atlantic: off Port Nolloth, South Africa.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 23.0 cm TL male/unsexed; (Ref. 2708); 31.0 cm TL (female)
Morphology | Morphometrics
A legskate with a pointed thornless snout and with large whitish thorns on shoulders, around the eyes, and in a single row from the nape to the 1st dorsal fin (Ref. 5578). Legskates have pelvic fins separated into a mobile leg-like front lobe, and a rear lobe that may be fused to the tail base (Ref. 5578). Uniformly reddish-brown above, lighter below (Ref. 5578).
A rare species known only from 2 specimens both of which are missing (Ref. 2708). Oviparous (Ref. 50449).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00135 - 0.00677), b=3.21 (3.03 - 3.39), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.6 ±0.7 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (28 of 100) .