You can sponsor this page

Malthopsis oculata Ho & Last, 2021

Bigeye triangular batfish
Upload your photos and videos
 Google image
Image of Malthopsis oculata (Bigeye triangular batfish)
No image available for this species;
drawing shows typical species in Ogcocephalidae.

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

Teleostei (teleosts) > Lophiiformes (Anglerfishes) > Ogcocephalidae (Batfishes)
Etymology: Malthopsis: Greek, malthe, es = a marine fish of soft flesh (Ref. 45335); oculata: Name from Latin 'oculus' for eye, referring to its unusually large orbit (Ref. 123774).

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

Marine; demersal; depth range 184 - 460 m (Ref. 123774), usually 350 - 420 m (Ref. 123774). Subtropical

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

Eastern Indian Ocean: Western Australia.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 7.2 cm SL male/unsexed; (Ref. 123774)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 4 - 6. This species is distinguished by the following set of characters: D 4-6; pectoral-fin rays 10-13; rostrum pointed, needle-like, base small; subopercular buckler with few weakly-developed spinelets; small bucklers loosely covering posterior part of skull; orbit large (14.1%-16.8% SL); rostrum short (7.1%-11.2% SL), directed upward rather than forward; interorbital space is narrow (5.4%-7.1% SL); body covered with relatively sharp bucklers, in loose arrangement; interspaces between bucklers naked; OD/IO = 2.3-2.8, OD/RL = 1.3-2.1; anal fin not reaching caudal-fin base when fully appressed (based on short rostrum specimens only) (Ref. 123774).

Biology     Glossary (e.g. epibenthic)

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

Main reference Upload your references | References | Coordinator : Ho, Hsuan-Ching | Collaborators

Ho, H.-C. and P. Last, 2021. Review of the batfish genus Malthopsis from Australia (Lophiformes: Ogcocephalidae), with descriptions of a five new species. Bull. Mar. Sci. 97(1):165-218. (Ref. 123774)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Not Evaluated 

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators
Ecology
Ecology
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics
Distribution
Countries
FAO areas
Ecosystems
Occurrences
Introductions
BRUVS - Videos
Anatomy
Gill area
Brain
Otolith
Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
Genetics
Heterozygosity
Heritability
Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Outreach
Collaborators
Taxonomy
Common names
Synonyms
Morphology
Morphometrics
Pictures
References
References

Tools

E-book | Field guide | Length-frequency wizard | Life-history tool | Point map | Classification Tree | Catch-MSY |

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = No PD50 data   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01479 (0.00517 - 0.04233), b=2.93 (2.68 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.2   ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).