Teleostei (teleosts) >
Ophidiiformes (Cusk eels) >
Bythitidae (Livebearing brotulas)
Etymology: Saccogaster: Latin, sacculus = small bag + Greek, gaster = stomach (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 440 - 850 m (Ref. 93007). Deep-water
Indo-Pacific: off East Africa to Hawaii.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 16.0 cm SL (female)
Dorsal soft rays (total): 82 - 93; Anal soft rays: 54 - 60; Vertebrae: 55 - 58. This species is distinguished from its congeners by the following set of characters: body scaleless; frontal plate with a pair of small, sub-dermal spines just behind eyes, median sub-dermal ethmoidal spine in front of eyes; skin is rather thick; a large posterior mandibular pore behind end of maxilla; snout with a cartilaginous ethmoidal spine; opercular spine is hidden, no preopercular spine; anterior gill arch with 3 developed rakers, almost equal in length to developed rakers; pectoral peduncle is prolonged; no fangs on dentigerous bones, 3 to several tooth rows on palatines; vertebrae, precaudal 14-15, total 55-58; fin rays, D 82-93, A 54-60 and pectoral 19-22; otolith length to height, 2-2.1, otolith length to colliculum length variable, 2.5-3.3 (Ref. 93007).
A benthic species (Ref. 58302) found on the continental slope (Ref. 75154). Rare species (Ref. 34024).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Nielsen, J.G., W. Schwarzhans and D.M. Cohen, 2012. Revisions of Hastatobythites and Saccogaster (Teleostei, Bythitidae) with three new species and a new genus. Zootaxa 3579:1-36. (Ref. 93007)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
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Estimates based on models
Preferred temperature (Ref.
123201): 2.2 - 10.3, mean 7.9 °C (based on 312 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00172 - 0.01163), b=3.10 (2.87 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.4 ±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).
