Actinopterygii (ray-finned fishes) > Ophidiiformes
(Cusk eels) > Bythitidae
(Viviparous brotulas) > Bythitinae
Etymology: Saccogaster: Latin, sacculus = small bag + Greek, gaster = stomach (Ref. 45335).
Environment / Climate / Range
Marine; bathydemersal; depth range 265 - 600 m (Ref. 34024). Deep-water, preferred ?
Indian Ocean: Bay of Bengal and Gulf of Aden.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.7 cm SL male/unsexed; (Ref. 93007); 8.1 cm SL (female)
soft rays: 53 - 56;
Vertebrae: 53 - 55. This species is distinguished from its congeners by the following set of characters: distinct pair of (probably) free spines on frontal plate above and behind eyes; strong ethmoidal spine located in front of eyes; with scales on sides of body but not on predorsal; some specimens possess ventral arm of opercle terminating in a short spine; opercular spine free, with one prong; with 2 posterior infraorbital pores, 1 supraorbital pore at upper angle of gill opening and 1 posterior mandibular behind maxillary; anterior gill arch with 3 long rakers about half length of longest filaments; pectoral peduncle is elongated; with several tooth rows on palatines; vertebrae, precauda 12-13, total 53-55; fin D 83-85, A 53-56, pectoral 17-18 (Ref. 93007).
Rare species (Ref. 34024).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Males have a bilobed genital papilla (intromittent organ) (Ref. 205).
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
Fisheries: of no interest
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
): 3.4 ±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 (16 of 100) .