Classification / Names
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Actinopterigi (pesci con pinne raggiate) >
Ophidiiformes (Cusk eels) >
Bythitidae (Viviparous brotulas) > Brosmophycinae
Etymology: Diancistrus: Greek, di = two + Greek, agkistron = hook (Ref. 45335); jackrandalli: Named for John (Jack) E. Randall.. More on author: Schwarzhans, Nielsen.
Ambiente / Clima / Range
Ecologia
; marino associati a barriera corallina; distribuzione batimetrica 2 - 4 m (Ref. 57884). Tropical, preferred ?
Distribuzione
Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri
Northwest Pacific: Ryukyu Islands, Japan.
Size / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.9 cm SL maschio/sesso non determinato; (Ref. 57884)
Short description
Morfologia | Morfometria
Raggi dorsali molli (totale): 76-79; Raggi anali molli: 60 - 67; Vertebre: 40 - 41. The species is distinguished by the following: Vertebrae 11+29-30=40-41, dorsal fin rays 76-79, anal fin rays 60-67; small eyes (1.6-2.1% SL); outer pseudoclasper moderately large, wing- shaped, slightly bent outwards; inner pseudoclasper almost free, bifurcate, with stout hook-like anterior branch and broad flap-like posterior branch; scale patch on cheek with 6-7 rows of small scales on upper cheek, 2 large scales on operculum above opercular spine; head massive, broad; otolith length to height ratio 2.1. This is the only species of the genus which combines small eyes (about 2.1% SL) with presence of scales on the operculum (Ref. 57884).
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
Schwarzhans, W., P.R. Møller and J.G. Nielsen, 2005. Review of the Dinematichthyini (Teleostei, Bythitidae) of the Indo-West-Pacific. Part I. Diancistrus and two new genera with 26 new species. The Beagle, Records of the Museum and Art Galleries of the Northern Territory 21:73-163. (Ref. 57884)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 94142)
Not Evaluated
Threat to humans
Harmless
Human uses
Informazioni ulteriori
StatiAree FAOEcosystemsPresenzeIntroduzioniStocksEcologiaDietaPredeConsumo di ciboRazione
Nomi ComuniSinonimiMetabolismoPredatoriEcotossicologiaRiproduzioneMaturitàDeposizioneFecundityUovaEgg development
Age/SizeAccrescimentoLength-weightLength-lengthLength-frequenciesMorfometriaMorfologiaLarveDinamica popolazioni larvaliReclutamentoAbbondanza
BibliografiaAcquacolturaProfilo di acquacolturaVarietàGeneticaFrequenze allelicheEreditarietàMalattieElaborazioneMass conversion
CollaboratoriImmaginiStamps, CoinsSuoniCiguateraVelocitàModalità di nuotoArea branchialeOtolithsCervelliVista
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