Actinopteri (ray-finned fishes) > Ovalentaria/misc
(Various families in series Ovalentaria) > Pseudochromidae
(Dottybacks) > Pseudochrominae
Etymology: Pseudochromis: Greek, pseudes = false + Greek, chromis = a fish, perhaps a perch (Ref. 45335); matahari: The specific epithet is from the Indonesian for sun, and alludes to the sunburst-like live coloration. To be treated as a noun in apposition (Ref. 80681). More on authors: Gill, Erdmann & Allen.
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic, usually 32 - 45 m (Ref. 80681). Tropical; 2°N - 1°N, 127°E - 128°E
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Indonesia: Halmahera. Known only from the type locality of North Tanjung Bobo (Ref. 80681). Also Raja Ampat Islands, West Papua, Indonesia (Ref. 90102).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.5 cm SL male/unsexed; (Ref. 80681)
Morphology | Morphometrics
soft rays: 16. Distinguished from all other pseudochromines by the following characters: dorsal-fin rays III,26; anal-fin rays III,16; anal-fin spines moderately slender and weakly pungent, the second spine only slightly stouter than the third; lower lip weakly interrupted at symphysis; and circumpeduncular scales 16. It also has a distinctive live coloration: head orange-brown, becoming bright yellow on lower part of operculum; posterior and ventral part of orbital rim bright yellow, edged posteriorly and ventrally by purple-blue arc; scales of cheek indistinctly edged with mauve; body orange-brown, darker on scale-edges, becoming bright yellow on breast and pectoral-fin base, bright red on abdomen and above anterior anal fin, then dark purplish red on caudal peduncle; dorsal fin golden to orange-brown anteriorly, becoming reddish brown posteriorly, with reddish brown distal margin; 1-3 rows of short, dark reddish brown streaks on middle of soft portion of fin; anal fin dark reddish brown, becoming golden brown over spinous portion of fin, with grey distal margin; caudal fin dark reddish grey basally, abruptly greyish hyaline on distal third of fin, with grey distal margin (Ref. 80681).
Solitary under large Xestospongia barrel sponges on gradual, current-swept reef slopes in 32-45 m, sometimes in pairs (Ref 90102).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Gill, A.C., M.V. Erdmann and G.R. Allen, 2009. Pseudochromis matahari, a new species of dottyback (Perciformes: Pseudochromidae) from Halmahera, Indonesia. aqua, Int. J. Ichthyol. 15(1):45-48. (Ref. 80681)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00501 (0.00191 - 0.01317), b=3.10 (2.87 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.5 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 (11 of 100) .