Teleostei (teleosts) >
Callionymiformes (Dragonets) >
Callionymidae (Dragonets)
Etymology: Diplogrammus: Greek, diploos = twice + Greek, gramma = mark, signal (Ref. 45335); paucispinis: Name refers to the low number of spinules on the dorsal margin of the preopercular spine (when compared with other species of the genus Diplogrammus, except the pygmy species Diplogrammus pygmaeus.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 0 - 8 m (Ref. 96762). Tropical
Western Indian Ocean: Red Sea, Saudi Arabia.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 3.9 cm SL male/unsexed; (Ref. 96762); 4.0 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 7; Dorsal soft rays (total): 8; Anal soft rays: 7. This species is distinguished by the following characters: D IV, 8; A 7; presence of free opercular flap of skin and branches of lateral line; preopercular spine with an upcurved main tip, first dorsal fin with a filament in males, none in females; first spine significantly
longer than the second and third, and first ray of the second dorsal fin in males; in both sexes,
caudal fin elongate and pointed; body below ventrolateral fold of skin color white or yellowish; anal fin of males translucent with broadly black margin; no bluish lines on head and/or body in males except for a short oblique blue bar at corner of mouth (Ref. 96762).
Occurs in shallow waters, on coral gravel or silty sand bottom near coral reefs (Ref. 96762)
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Fricke, R., S.V. Bogorodsky and A.O. Mal, 2014. Review of the genus Diplogrammus (Teleostei: Callionymidae) of the Red Sea, with description of a new species from Saudi Arabia. J. Nat. Hist. 48(39-40):2419-2448. (Ref. 96762)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00794 (0.00362 - 0.01742), b=2.81 (2.63 - 2.99), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.4 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
