Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Atheriniformes
(Silversides) > Phallostethidae
Etymology: Neostethus: Greek,neos = new + Greek, stetho, stethion = brest; literal = to prick a little breast (Ref. 45335); djajaorum: Named in honor of the Rachmat Djaja and family, for their kindness and extraordinary support of the author's fieldwork in Sulawesi (Ref. 44355).
Environment: milieu / climate zone / depth range / distribution range
Brackish; pelagic. Tropical
Western Central Pacific: Sulawesi, Indonesia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 1.9 cm SL male/unsexed; (Ref. 44355)
Morphology | Morphometrics
soft rays: 15;
Vertebrae: 33 - 35. Like N. robertsi and N. palawanensis, has a large second ctenactinium that is bifid distally, but distinguished from those species by having a bone larger and more distinctly claw-shaped, and extent of a bony projection and fleshy profile on the ventral margin of the first ctenactinium that abuts the claw (Ref. 44355).
Collected over a muddy bottom, in a slightly turbid irrigation ditch relatively near the sea (Ref. 44355). Fertilization is internal and eggs are attached to the substrate via adhesive filaments (Ref. 43413).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Pelvic fins in males modified to form part of a complex thoracic clasping organ (Ref. 205).
Parenti, L.R., 1999. Phallostethidae. Priapium fishes. p. 2146-2148. In K.E. Carpenter and V.H. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Volume 4. Bony fishes part 2 (Mugilidae to Carangidae). FAO, Rome. (Ref. 12936)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5002 [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
): 3.0 ±0.2 se; Based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .