Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobiinae
Etymology: Gobiodon: Latin, gobius = gudgeon + Greek, odous = teeth (Ref. 45335); bicalvolineatus: Name 'bicalvolineatus' from Latin words for 'two', 'bald' and 'line', referring to the two pale patches at the back of the head imitating baldness and the prominent lined pattern on the body.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated. Tropical
Western Central Pacific: Papua New Guinea.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 2.1 cm SL male/unsexed; (Ref. 133118)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 7; Dorsal soft rays (total): 10; Anal spines: 1; Anal soft rays: 9; Vertebrae: 26. This species is distinguished by the following set of characters: D VI, I,10; A I,9-10; naked head and majority of body, with some squamation on caudal peduncle; body slightly laterally compressed (body depth at pelvic-fin origin 40.6-45.3% SL), typically dorsal ventrally symmetrical, rounded head; small mouth with pronounced recurved lips; presence of groove between isthmus and interopercle; relatively deep caudal peduncle (15.5-18.6% SL); long caudal fin (22.1-29.3% of SL); absence of post symphysial teeth, triangular dentary with various sizes of jaw dentition; elongate cheek papillae length exceeding width; blue-green base colouration and red markings on the face and body of adults; facial markings as vertical bars on cheek, small spots on dorsal surface of head and unbroken horizontal lines along the length of the body beginning post pectoral fin (Ref. 133118).
Cross section: compressed.
Facultative air-breathing in the genus; Gobiodon bicalvolineatus inhabits the branching coral of Acropora caroliniana (Ref. 133118).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Hildebrandt, C.A., C.Y.M. Froehlich, O.B. Brodnicke, S. Klanten, P.R. Møller and M.Y.L. Wong, 2024. Two new species of Gobiodon (Teleostei: Gobiidae) from the IndoPacific, with notes on South Pacific and Indian Ocean populations of Gobiodon spadix Raffles Bulletin of Zoology 72:488-510. (Ref. 133118)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic level (Ref.
69278): 3.1 ±0.4 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).
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