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: rubrisparsa: Name from Latin 'rubrum' for red and 'sparsus' or sprinkled, referring to the live color pattern of red dots.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 20 - 28 m (Ref. 83982). Tropical
Indo-West Pacific: Christmas Island (Indian Ocean), Indonesia (Flores, Alor, West Papua), Papua New Guinea (D'Entrecasteaux Islands and New Britain), Solomon Islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 2.0 cm SL male/unsexed; (Ref. 83982)
Morphology | Morphometrics
soft rays: 8. This species is distinguished from its congeners by the following set of characters: dorsal/anal fin-ray formula 9/8; pectoral fin rays 16-19 (mean 18), 5-6 lower rays branched; cephalic sensory-pore system pattern I (complete); fifth segmented pelvic-fin ray 11.5-22% of fourth; branches on fourth pelvic-fin ray 5-7, 3 segments between branches; non-fimbriate genital papilla; dorsal fin filamentous (to 36.9% SL); body with no distinct large dark marks; anal fin and lower half of caudal fin dark; scattered melanophores behind eyes on nape; when alive, small red dots cover the body but these disappear when preserved in ethyl alcohol (Ref. 83982); characterized further by longitudinal scale series 25; ctenoid scales, none on head, nape, breast and pectoral fin base; depth of body 4.7-5.6 in SL (Ref. 90102).
Inhabits sand-rubble bottoms among reefs in 4-15 m (Ref 90102).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Greenfield, D.W. and J.E. Randall, 2010. Four new gobiid fishes of the genus Eviota from the Western Pacific, with clarification of Evoita guttata and Evoita albolineata (Teleostei: Goblidae). Proc. Calif Acad. Sci. 61(3):269-289. (Ref. 83982)
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
): 27.2 - 28.3, mean 28 (based on 7 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
): 3.0 ±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) .