Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Gobiiformes
(Gobies) > Gobiidae
(Gobies) > Gobiinae
Etymology: Callogobius: Greek, kalos, kallos = beautiful + Latin, gobius = gudgeon (Ref. 45335); swifti: Named for John Swift, for his lifelong passion for grassroots conservation in New Guinea as a Board Member of Conservation International and an unflagging patron of the local environmental organization Eco Custodian Advocates (they promote customary marine management across the Milne Bay communities).
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 45 - 65 m (Ref. 122935), usually - m (Ref. ). Tropical; 0°C -
Western Central Pacific: Papua New Guinea.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 2.3 cm SL male/unsexed; (Ref. 122935); 2.0 cm SL (female)
Morphology | Morphometrics
soft rays: 8;
Vertebrae: 26. This species is distinguished by the following set of characters: segmented dorsal-fin rays 9; segmented anal-fin rays 8; lateral scales 21-22; predorsal scales 7-8; reduced cephalic sensory-canal pores, with only posterior nasals (B’), posterior interorbital (D), anterior otics (F), and intertemporals (H’); cephalic sensory papillae rows 20 and 21 separate and with 10 transverse mandibular papillae rows; absence of pelvic frenum and connecting membrane restricted to basal half of fin; cycloid scales anteriorly, becoming ctenoid posteriorly below the level of base of second or third segmented dorsal-fin ray. Colour pattern when alive mottled brown with gray lateral stripes corresponding to lateral-scale rows, whitish margins with orange vermiculations on dorsal fins and upper edge of caudal fin, and basal half of first-dorsal fin with a yellow-edged partial ocellus (Ref. 122935).
This species was found on steep, volcanic-sand slopes; under small pieces of coral rubble and volcanic rock that were often covered with Halimeda algae. Strong thermoclines were frequently encountered between 40-50 m on these slopes, thus consequently this species is likely exposed to temperatures ranging from about 24-29º C (Ref. 122935).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Allen, G.R., M.V. Erdmann and W.M. Brooks, 2020. Callogobius swifti, a new goby (Teleostei: Gobiidae) from Papua New Guinea. J. Ocean Sci. Found. 35:86-93. (Ref. 122935)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00332 - 0.01511), 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 ±0.2 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .