Teleostei (teleosts) >
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).
Eponymy: John F Swift is a conservationist and the founder of the Swift Foundation, which supports conservation around the world. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 45 - 65 m (Ref. 122935). Tropical
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)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 1; Anal 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. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00339 - 0.01546), b=3.10 (2.92 - 3.28), 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.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
![Image of Callogobius swifti (Swift\](/images/thumbnails/jpg/tn_Caswi_m0.jpg "Image of Callogobius swifti (Swift\")
