Teleostei (teleosts) >
Ophidiiformes (Cusk eels) >
Bythitidae (Livebearing brotulas)
Etymology: Acarobythites: Greek, akari = mite + Greek, bythitis, -idos = it is at the bottom, sunken (Ref. 45335); larsonae: Named for Helen K. Larson (NTM).
Eponymy: Dr Helen K Larson was Curator of Fishes, Museum and Art Gallery of the Northern Territory, Darwin, Australia (1981–2009), retiring as Emeritus Curator, and is now a Research Associate at the Museum of Tropical Queensland, Townsville. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 0 - 3 m (Ref. 40785). Tropical
Western Central Pacific: known only from Northern Territory, Australia.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 2.5 cm SL male/unsexed; (Ref. 40785)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 0; Dorsal soft rays (total): 73 - 79; Anal spines: 0; Anal soft rays: 53 - 57; Vertebrae: 42 - 43. Head without scales; anal fin origin at about mid-body; eye diameter 17.8-18.0 times in HL, snout compressed; posterior end of maxillary rounded, not sheathed by dermal cheek fold, without ventrally-directed process near postero-ventral corner; opercular spine flat and weak; no pore-bearing skin flap on upper angle of opercle; lower angle of preopercle smooth; pectoral peduncle normal, broader than long; no spine on cleithrum; all teeth sharp-pointed, some needle-like; developed gill rakers on anterior arch 3.
Collected from pools on rocky reefs.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Machida, Y., 2000. A new bythitid genus and species, Acarobythites larsonae, from shallow rocky reefs off northern Australia (Pisces, Ophidiiformes, Bythitidae). Beagle, Rec. Mus. Art Galler. North. Territ. 16:123-126. (Ref. 40785)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00246 - 0.02688), b=2.92 (2.67 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.1 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Low, minimum population doubling time 4.5 - 14 years (Assuming Fec < 100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
![Image of Acarobythites larsonae (Larson\](/images/thumbnails/gif/tn_BYTHITT0.gif "Image of Acarobythites larsonae (Larson\")
