Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 300 - 383 m (Ref. 122804). Deep-water
Western Indian Ocean: apparently endemic in the Red Sea, Saudi Arabia and Israel.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 6.5 cm SL male/unsexed; (Ref. 122804)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 13; Dorsal soft rays (total): 8; Anal spines: 3; Anal soft rays: 5. This species have the following characters: lacrymal with 2 spines and low nuchal ridge is without spine; pterotic, posttemporal and humeral have 1 spine each; two convex interorbital ridges with no spines, closest together above the centre of orbit; preopercle with 5 spines, the uppermost is the largest; opercle with 2 ridges, the upper ending in a spine; lower jaw protruding, with a small knob at the symphysis; gill rakers 9-10 + 1; lateral-line scales 22-23; dorsal fin beginning on the level of the posterior end of the pupil; D XIII,8 with the last ray attached to caudal peduncle by a membrane; A III,5 with the last ray attached to caudal peduncle by a membrane; pectoral-fin rays i,10,iii-iv (total 14-15); pelvic-fin I,5. Colouration: head and body light brown, the sides pale brown belly whitish; eye dark grey; peritoneum pale; dorsal fin light brown, membranes of spinous section distally blackish with the soft dorsal transparent, with irregular brown spots arranged in three oblique rows; anal fin pale, the membranes of spinous section distally dark brown, distal one-third of soft section with irregular
brown spots; pectoral fin with a basal brown blotch, an upper central vertical row of dark brown spots, distal one-third brown, with irregularly arranged dark brown spots; pelvic fin distally blackish; caudal fin pale, the upper half with 6 rows of irregularly arranged brown spots, lower half with four such rows, distal one-fourth dark brown (Ref. 122804).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Goren, M. and M. Dor, 1994. An updated checklist of the fishes of the Red Sea (CLOFRES II). The Israel Academy of Sciences and Humanities, Jerusalem, Israel. 120 p. (Ref. 12541)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
