Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Ophidiiformes
(Cusk eels) > Bythitidae
(Viviparous brotulas) > Bythitinae
Etymology: Saccogaster: Latin, sacculus = small bag + Greek, gaster = stomach (Ref. 45335); brayae: Named for Dianne Bray, MNV.
Environment / Climate / Range
Marine; bathydemersal; depth range ? - 258 m (Ref. 93007). Tropical, preferred ?
Eastern Indian Ocean: Australia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.6 cm SL male/unsexed; (Ref. 93007)
Morphology | Morphometrics
soft rays: 52;
Vertebrae: 53. This species is distinguished from its congeners in having a broken brown stripe between eye and hind margin of opercle (except for S. hawaii), vertebrae, precaudal 21 and total 53; mature at a very small SL (3.6 cm); also with a pair of free spines on frontal above and behind eyes, a large median sub-dermal ethmoidal spine in front of eyes with forward pointed tip; lower angle of preopercle with antero-ventrally directed spine; skin thin and transparent; scales present on sides of body; anterior arch with 3 long gill rakers, 4-5 times the length of gill filaments; 1-2 rows of palatine teeth; pectoral peduncle longer than high; fin rays, D 85, A 52 and pectoral 18; otolith length to height 9; otolith length to colliculum length 3.1; sulcus without anterior projection (Ref. 93007).
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. 109396)
CITES (Ref. 94142)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), 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 (10 of 100) .