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Lophiiformes (Anglerfishes) >
Brachionichthyidae (Handfishes)
Etymology: Thymichthys: Greek thymos (warty excrescence) and Greek ichthys (fish) in allusion to the warty protuberances on the skin of these handfishes; politus: Name from Latin 'polio' for polish, in reference to its ‘shining reddish brown
appearance (Ref. 82446).
More on author: Richardson.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino demersale; distribuzione batimetrica ? - 6 m (Ref. 132909). Temperate
Southwest Pacific: Endemic to Tasmania.
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 9.0 cm SL maschio/sesso non determinato; (Ref. 82446)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Raggi dorsali molli (totale) : 18 - 19; Raggi anali molli: 9 - 10. This species is distinguished by the following combination of characters: large esca, 45-65% (mean 52%) of illicium length (including esca); short illicium, thick and fleshy, no dermal spinules, length 14-17% SL, 3-3.4 times in head length, well separated from upper jaw (pre-illicial length 3.3-7.9% SL); moderate size eye, 6.9-9.3 times in head; body variably covered with small, close-set flattened warts but no well-developed dermal flaps; posterior margins of warts usually with a small, sharp, prostrate spine (mostly embedded with its tip sometimes visible); deeply embedded scales, widely spaced; second dorsal-fin rays 16-17, fin base 63-71 (mean 67)% SL; length of second dorsal-fin spine 0.7-1 times length of longest ray of second dorsal fin; anal-fin rays 9-10; pectoral-fin rays 9 (rarely 10); body variable shades of red, often paler ventrally; often bluish or blackish near dorsal tips of pectoral and pelvic fins, and along margins of dorsal, anal and caudal fins (Ref. 82446).
Body shape (shape guide): elongated.
A benthic species (Ref. 75154) which occurs in inshore waters (Ref. 7300, 75154), most often observed underneath algal canopies (Ref. 132909). Rare and cryptic, particularly vulnerable to extinction (Ref. 132909).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Last, P. and D.C. Gledhill, 2009. A revision of the Australian handfishes (Lophiiformes: Brachionichthyidae), with descriptions of three new genera and nine new species. Zootaxa 2252:1-77. (Ref. 82446)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 0.7501 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00437 (0.00163 - 0.01168), b=3.12 (2.89 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Livello trofico (Fonte Biblio. 69278) |
3.7 ±0.5 se; based on size and trophs of closest relatives |
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Generation time |
3.7 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
Resilienza (Fonte Biblio. 120179) |
Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (Preliminary K or Fecundity.). |
Vulnerabilità della pesca (Ref. 59153) |
Low to moderate vulnerability (33 of 100). 🛈 |