Actinopterygii (ray-finned fishes) > Ophidiiformes
(Cusk eels) > Bythitidae
(Viviparous brotulas) > Bythitinae
Etymology: Saccogaster: Latin, sacculus = small bag + Greek, gaster = stomach (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 201 - 450 m (Ref. 93007). Deep-water
Western Central Atlantic: east coast of Florida, USA and the Gulf of Mexico; possibly Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.3 cm SL male/unsexed; (Ref. 93007); 7.2 cm SL (female)
Morphology | Morphometrics
soft rays: 53 - 57;
Vertebrae: 53 - 54. This species is distinguished from its congeners by the following set of characters: frontal plate have a pair of small, hidden, sub-dermal spines above and behind eyes; with a small, median, sub-dermal, ethmoidal spine in front of eyes; opercular spine hidden by skin, no preopercular spine; pectoral peduncle is prolonged; anterior gill arch with 3 developed rakers, 1.5-2 times length of gill filaments; palatines with 1tooth row, fang-like teeth on all dentigerous bones; vertebrae, precaudal 13-14 and total 53-54; fin rays, Dl 86-88, A 53-57 and pectoral 18-19; otolith length to height, 2.1, otolith length to colliculum length, 2.8 (Ref. 93007).
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. 119314)
CITES (Ref. 115941)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 9.6 - 15.3, mean 13.2 (based on 37 cells).
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), in cm Total Length, 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 (18 of 100) .