Teleostei (teleosts) >
Lophiiformes (Anglerfishes) >
Ogcocephalidae (Batfishes)
Etymology: Malthopsis: Greek, malthe, es = a marine fish of soft flesh (Ref. 45335); arrietty: Named after the miniature character of the Japanese animated fantasy film 'Arrietty the Borrower' (Japan) or 'The Secret World of Arrietty' (North America), referring to the miniature size of the species; noun in apposition.
Eponymy: The fish is named after the miniature character of the Japanese animated fantasy film ‘Arrietty the Borrower’ (Japan) or ‘The Secret World of Arrietty’ (North America), in reference to the miniature size of the species. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 234 - 777 m (Ref. 124115), usually 234 - 543 m (Ref. 124115). Tropical
Western Pacific: the Philippines.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 5.4 cm SL male/unsexed; (Ref. 124115)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 4 - 6. This species is distinguished by the following characters: no prickles on interspaces of bucklers; an extremely short rostrum (x? = 4.1% SL) directed upward rather than forward; large eye (x? = 15.4% SL); narrow interorbital space (x? = 5.5% SL); OD/RL = 2.4-5.3 and OD/IO = 2.4-3.2; body with a few scattered bucklers, with interspaces largely naked on dorsal surface; ventral surface with few flat bucklers, mostly restricted to around pelvic-fin base, and almost naked elsewhere (Ref. 124115).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Ho, H.-C., 2020. Two new deep-water batfish of the genus Malthopsis from the Pacific Ocean (Lophiiformes: Ogcocephalidae). Raffles Bull. Zool. 68:859-869. (Ref. 124115)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 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).
