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> Gobiiformes (Gobies) > Xenisthmidae (Collared wrigglers)
Etymology: Paraxenisthmus: Greek, para in the side of + Gree, xenos = strange + Greek, isthmos = narrow passage (Ref. 45335); cerberusi: Named for Cerberus, the three-headed dog guarding the gates of Hades; refers to the relatively toothy attributes of the genus, and to the black juveniles and red and black adults, colors often associated with the darkness and flames of Hell..
More on authors: Winterbottom & Gill.

Environment: milieu / climate zone / depth range / distribution range Ecologia

marino demersale; distribuzione batimetrica 12 - 26 m (Ref. 56733). Tropical

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Western Central Pacific: Palau.

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 2.1 cm SL maschio/sesso non determinato; (Ref. 56733); 2.1 cm SL (female)

Short description Chiavi di identificazione | Morfologia | Morfometria

Spine dorsali (totale) : 7; Raggi dorsali molli (totale) : 11; Spine anali: 1; Raggi anali molli: 10. Diagnosis: Distinguished from its congeners in having 15-16 pectoral fin-rays (vs. 18); cephalic lateralis pore P absent (vs. present); head, nape, ventral abdomen, and dorsal midline of caudal peduncle naked (vs. scaled); and caudal peduncle with a large, black blotch (vs. none) (Ref. 56733).

Small, sand-diving gobioids; inhabits drop-off with caves and ledges, silty sandy shelves and slopes, with hydroids, sea fans and a variety of hard corals and some Halimeda (Ref. 56733).

Life cycle and mating behavior Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

Winterbottom, R. and A. Gill, 2006. Paraxenisthmus cerberusi, a new species of xenisthmid fish from Palau (Percomorpha: Gobioidei). Copeia 2006(1):10-13. (Ref. 56733)

IUCN Red List Status (Ref. 130435)

Data deficient (DD) ; Date assessed: 12 March 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Trophic ecology
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Estimates based on models

Preferred temperature (Ref. 123201): 27.2 - 29.1, mean 28 °C (based on 22 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.1 ±0.4 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Paraxenisthmus cerberusi Winterbottom & Gill, 2006