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Ogilbia nudiceps Møller, Schwarzhans & Nielsen, 2005

Slickhead brotula
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Ogilbia nudiceps   AquaMaps   Data sources: GBIF OBIS
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Image of Ogilbia nudiceps (Slickhead brotula)
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drawing shows typical species in Dinematichthyidae.


Mexico country information

Common names: Brótula pelona, Naked-headed coralbrotula, Slickhead brotula
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Type locality, San Carlos, Sonora, USNM 322028 (holotype of Ogilbia nudiceps, 53 mm SL, male). Known from the Gulf of California (22-29°N), chiefly along the southern reaches of the gulf to the tip, but not on its Pacific side.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mx.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Møller, P.R., W. Schwarzhans and J.G. Nielsen, 2005
National Database:

Common names from other countries

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Actinopteri (ray-finned fishes) > Ophidiiformes (Cusk eels) > Dinematichthyidae (Viviparous brotula)
Etymology: Ogilbia: Taken from Ogilby, 1887-1915, icthiologist and zoologist (Ref. 45335);  nudiceps: Named for the scale-less head; 'nudi' = naked and 'ceps' = head.  More on authors: Møller, Schwarzhans & Nielsen.

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

Marine; reef-associated; depth range 0 - 30 m (Ref. 57883).   Tropical; 29°N - 22°N

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Eastern Pacific: Gulf of California.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 5.3 cm SL male/unsexed; (Ref. 57883); 7.4 cm SL (female)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 63-72; Anal soft rays: 49 - 56; Vertebrae: 40 - 41. The species is characterized by having the following: Vertebrae 11 + 29-30 = 40-41, dorsal fin rays 63-72, anal fin rays 49-56; small eyes (1.4-2.6, x = 1.9 % SL); outer pseudoclasper broad wing-shaped with slightly expanded tip; inner pseudoclasper with two stout branches, anterior pointing forward, posterior straight, with fleshy lobe in between, penis with abrupt change from thick base to thin tip; opercular spine with single, sharp tip, no scales on cheeks; otolith elongate, length: height ratio 2.4 (Ref. 57883).

Biology     Glossary (e.g. epibenthic)

Inhabits rocky and sandy bottoms. A 63 mm SL female specimen (USNM 375546) contained 160 embryos, 4-5 mm TL, with three short rows of small pigment spots posteriorly on the body. No eggs. A 55 mm SL female (SIO 65-185) contained about 600 eggs, 0.5 mm in diameter (Ref. 57883).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Møller, P.R., W. Schwarzhans and J.G. Nielsen, 2005. Review of the American Dinematichthyini (Teleostei: Bythitidae). Part II. Ogilbia. aqua, J. Ichthyol. Aquat. Biol. 10(4):133-207. (Ref. 57883)

IUCN Red List Status (Ref. 123251)

  Least Concern (LC) ; Date assessed: 29 April 2008

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

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Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes(genus, species) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 23 - 26.6, mean 24.3 (based on 56 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this BS (Ref. 93245).
Trophic level (Ref. 69278):  3.3   ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 69278):  .
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .