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Blenniiformes (Blennies) >
Tripterygiidae (Triplefin blennies) > Tripterygiinae
Etymology: Enneapterygius: Greek, ennea = nine times + Greek, pterygion = little fin (Ref. 45335).
More on author: Rüppell.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino demersale; distribuzione batimetrica 3 - 20 m (Ref. 30874), usually ? - 10 m (Ref. 12476). Tropical
Western Indian Ocean: restricted, Persian Gulf (Ref.80050); Red Sea south to northern Natal, South Africa and east to India.
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 3.0 cm SL maschio/sesso non determinato; (Ref. 88983)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 15 - 17; Raggi dorsali molli (totale) : 10 - 11; Spine anali: 1; Raggi anali molli: 20 - 21. This species is distinguished by the following characters: D III + XII-XIV (usually XIII) + 10-11; A I, 20-21; pectoral rays 13-14: 3-4 + 3-4 + 6-7 (usually 14:4+3+6). LL, pored scales 12, notched scales 25-28, starting at 2 scale rows below the end of the pored series; total lateral scales 29-30; transverse scales 2/4; nape and abdomen scaleless, dorsal and anal fin bases also without scales. Body depth 5.3-6.0 in SL. Head 3.6-3.9 in SL; eyes large, diameter 3.0-3.4 in head length; supraorbital/orbital cirrus small, lobate; supratemporal sensory canal U-shaped; dentary pores 2+2+2. Male first dorsal fin (sometimes more than twice) higher than second; equal in height in females. Key features are: first dorsal fin very tall; body translucent; first dorsal fin yellow; male chest and pelvic fins black, mouth corners red, eye spots deep blue below the eyes; females eye stripe brown below, pectoral-fin base also with brown stripe (Ref. 57774, 88983).
Body shape (shape guide): elongated; Cross section: oval.
Known from inshore continental waters (Ref. 12476). Adults inhabit bays and sheltered lagoons, close to reef base, on a silty sand or mud substrate, often on stones and dead corals of the same color. Eggs are hemispherical and covered with numerous sticky threads that anchor them in the algae on the nesting sites (Ref. 240). Larvae are planktonic which occur primarily in shallow, nearshore waters (Ref. 94114). This is the first tripterygiid that has been described from the Red Sea (Ref. 88983).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Randall, J.E., 1995. A review of the triplefin fishes (Perciformes: Blennioidei:Tripterygiidae) of Oman, with descriptions of two new species of Enneapterygius. Rev. Fr. Aquariol. 22(1-2):27-34. (Ref. 12476)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: di nessun interesse
Strumenti
Rapporti speciali
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Fonti Internet
Stime basate su modelli
Temperatura preferita (Fonte Biblio.
123201): 25 - 29.3, mean 28 °C (based on 1085 cells).
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00617 (0.00290 - 0.01310), b=3.04 (2.86 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 3.1 ±0.3 se; based on size and trophs of closest relatives
Resilienza (Fonte Biblio.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Vulnerabilità della pesca (Ref.
59153): Low vulnerability (10 of 100).
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