Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range - 15 m (Ref. 57886), usually - m (Ref. ). Subtropical; 0°C -
Southwest Pacific: Norfolk Island.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.3 cm SL male/unsexed; (Ref. 57886)
soft rays: 56 - 65;
Vertebrae: 45 - 49. The species is characterized by an elongate body; vertebrae 13-16 + 31-35 = 45-49, dorsal fin
rays 86-104, anal fin rays 56-65, D/A 36-42, V/A 17-19; no scales; no supraorbital pore behind eye; lower preopercular pores 3, non-tubular; posterior infraorbital pores 2; spine on maxilla positioned behind rear tip of eye; exposed opercular spine straight; lower lip with skin folds; single pair of pseudoclaspers large, curved, broad club-shaped; penis about half the length of pseudoclaspers, with hook at tip; otoliths pointed anteriorly and rounded posteriorly, postdorsal angle sharp, pronounced (Ref. 57886).
Uncommon secretive species found in shallow waters (Ref. 34024).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Møller, P.R. and W. Schwarzhans, 2006. Review of the Dinematichthyini (Teleostei, Bythitidae) of the Indo-west Pacific, Part II. Dermatopsis, Dermatopsoides and Dipulus with description of six new species. The Beagle 22:39-76. (Ref. 57886)
IUCN Red List Status (Ref. 124695)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.6250 [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
): 3.3 ±0.5 se; based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .