Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Ophidiiformes
(Cusk eels) > Bythitidae
(Viviparous brotulas) > Brosmophycinae
Etymology: Ogilbia: Taken from Ogilby, 1887-1915, icthiologist and zoologist (Ref. 45335); robertsoni: Named for Dr. D. Ross Robertson, Smithsonian Tropical Research Institute, Panama (STRI). More on authors: Møller, Schwarzhans & Nielsen.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 6 - 27 m (Ref. 57883). Tropical
Eastern Pacific: Mexico to Costa Rica.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.1 cm SL male/unsexed; (Ref. 57883)
Morphology | Morphometrics
soft rays: 51 - 57;
Vertebrae: 39 - 41. This species is distinguished by the following characters: Vertebrae 11 + 28-30 = 39-41, dorsal fin rays 67-77, anal fin rays 51-57, outer pseudoclasper with a single, long supporter, extruding into spine-like tip; inner pseudoclasper is slender with a long, straight supporter, almost length of supporter of outer pseudoclasper with ligamentous connection to outer pseudoclasper
anteriorly; penis tapering; opercular spine with single sharp tip; scale patch on cheeks with 6-9 vertical scale rows; otolith length: height ratio 2.2-2.3 (Ref. 57883).
Habitat not known; no ripe females were observed (Ref. 57883).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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. 120744)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 26.8 - 29.1, mean 28.3 (based on 118 cells).
Phylogenetic diversity index (Ref. 82805
= 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 body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.2 ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (14 of 100) .