Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Gobiidae
(Gobies) > Gobiinae
Etymology: dorsopurpurea: Name from Latin 'dorsum' for back and 'purpura' for purple; referring to the purple color of the back above the lateral line. More on authors: Greenfield & Randall.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 8 - 30 m (Ref. 90102). Tropical
Western Pacific: Papua New Guinea.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 1.7 cm SL male/unsexed; (Ref. 87726); 2.2 cm SL (female)
Morphology | Morphometrics
soft rays: 7 - 9. This species is distinguished from its congeners by the following set of characters: a dark band on lower body from snout, across the lower half of the eye back to the caudal-fin base ending in a semi-circle; larger specimens with pectoral-fin base having a reversed L-shaped row of small black dots; cephalic sensory pore system lacking the PITO and IT pores and the AITO pore enlarged; dorsal/anal fin-ray formula usually 9/9; pectoral-fin rays simple; spinous dorsal elongate or filamentous in both sexes; genital papilla nonfimbriate; in life ventral band jet black, and with purple upper half of body and top of head (Ref. 87726); characterized further by having ctenoid scales, none on head, nape and pectoral fin base; separated pelvic fins, thin membrane joins bases; depth of body 4.1-5.6 in SL (Ref. 90102).
Forms groups among branches of Acopora coral, inhabits sheltered reefs in 8-30 m (Ref 90102).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Greenfield, D.W. and J.E. Randall, 2011. Two new Indo-Pacific species in the Eviota nigriventris complex (Teleostei: Gobiidae). Zootaxa 2997:54-66. (Ref. 87726)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 27 - 29, mean 28 (based on 68 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00300 - 0.01455), b=3.08 (2.90 - 3.26), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.1 ±0.3 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .