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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.
Eponymy: Cerberus was the three-headed dog who guarded the entrance to Hades in Greek mythology. [...] (Ref. 128868), visit book page.
More on authors: Winterbottom & Gill.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina bottenlevande; djupintervall 12 - 26 m (Ref. 56733). Tropical
Western Central Pacific: Palau.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 2.1 cm SL hane/ej könsbestämd; (Ref. 56733); 2.1 cm SL (female)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 7; Mjukstrålar i ryggfenan (totalt) : 11; Taggstrålar i analfenan: 1; Mjukstrålar i analfenan: 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).
Body shape (shape guide): elongated.
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).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
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)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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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). |
Trofisk nivå (Ref. 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
Sårbarhet i fisket (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |