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Blenniiformes (Blennies) >
Tripterygiidae (Triplefin blennies) > Tripterygiinae
Etymology: Enneanectes: Greek, ennea = nine times + Greek, nektos = that swimms (Ref. 45335); quadra: Name from Latin, meaning square; for the characteristic squared shape of the dark caudal-peduncle bar; noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 1 - 9 m (Ref. 116142). Tropical
Weatern Atlantic: the Caribbean, from the Bahamas, the Virgin Islands (USA), Antigua, as well as in the western Caribbean: at Yucatán, Mexico (as a larva), Honduras, Belize, and the offshore islands of Providencia.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 2.4 cm SL male/unsexed; (Ref. 116142)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 15; Dorsal soft rays (total): 7; Anal spines: 2; Anal soft rays: 15. This species is distinguished by the following characters: orbital cirrus is dark and narrow, more than twice longer than wide, ending in a single point (rarely bifid); without scales on upper preopercle immediately behind eye, below sensory canal (one individual with one on one side); without dark spots along pored lateral-line; iris has 3 red, spoke-like bands at about 8, 10, and 1 o’clock with wide interspaces (as wide or wider than red spokes) and a red rear lower quadrant (when fresh); short snout with a reddish band from orbit across front half of upper and lower jaws, pale in preserved fish with only patches (not a complete band) of fine melanophores; presence of a short reddish bar extending from lower rim of orbit, when preserved only a short dark bar, not reaching past corner of jaw; usually a white patch immediately behind suborbital bar, when preserved only a scattering of fine melanophores; preopercle and opercle pale, except for reddish and dark patch at orbital rim at 5 o’clock and a bar along posterior margin of preopercle; rear body not red; anal fin barred, 6 to 8 dark patches corresponding to each body bar and mid-interspace; caudal-peduncle dark bar typically about square (same width throughout with corners squared) or slightly wider than high, extending onto caudal-fin ray insertions; caudal fin mostly unmarked, almost clear on preserved specimens, with faint melanin outlining ray shafts (Ref. 116142). Characters shared with Enneanectes jordani are the following: D III+XII+7; A II,15; pectoral-fin rays 15; short first dorsal fin when adpressed not reaching second-spine base of second dorsal fin (often not reaching fin origin); 13 modal pored lateral-line scales and about 19 or 20 scales in notched midline row; scaled belly and pectoral-fin base with two scales above rear of pored lateral-line, the upper scale much smaller [both characters of scaled-belly subgroup]; body bars 5 with the last body bar on caudal peduncle much darker; anterior orbital flange with fine spines (Ref. 116142).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Victor, B.C., 2017. The status of Enneanectes jordani and a new species of triplefin blenny from the Greater Caribbean (Teleostei: Tripterygiidae). J. Ocean Sci. Found. 27:48-73. (Ref. 116142)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00617 (0.00288 - 0.01322), b=3.04 (2.86 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.9 ±0.3 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).
