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Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobiinae
Etymology: Grallenia: Named for Gerald R. Allen, (G+R+Allen+suffix '-ia'), in honor of his great contribution to our knowledge of the diversity of coral-reef fishes; larsonae: Named for Helen K. Larson, for her extensive contribution to goby taxonomy and systematics, and who collected and carefully preserved most of the type specimens.
Eponymy: Dr Gerald Ray Allen (d: 1942) The genus was named to honour “…his great contribution to our knowledge of the diversity of coral-reef fishes.” (See Allen, GR) (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 1 - 15 m (Ref. 123066). Tropical
Distribution
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Eastern Indian Ocean: Australia,
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 18.0 cm SL male/unsexed; (Ref. 123066)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 7; Dorsal soft rays (total): 7; Anal spines: 1; Anal soft rays: 7; Vertebrae: 27. This species is distinguished by the following set of characters: D VI+I,6–7; A I,6–8; first dorsal-fin spine not produced into filament; pelvic frenum present; cephalic sensory canals and associated pores present; 22–30 longitudinal scales. Coloration in alcohol is tan with 8 widely spaced, small, brown spots in mid-lateral row on side of the body; faint dark bar of stellate melanophores across anterior cheek; scattered pepper-like melanophores on anterior part of upper opercle It is closely related to Grallenia arenicola from Kashiwa-jima island of southern Japan. This species has relatively fewer scales anterior to the level of the second dorsal fin origin compared with Grallenia arenicola (Ref. 123066).
Specimens were collected using rotenone on sand and rubble bottoms, in habitats ranging from sand flats, isolated coral knolls, reef slopes, and reef edge/fringing reef with scattered corals (Ref. 123066).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Allen, G.R. and M.P. Hammer, 2018. Grallenia larsonae, a new species of sandgoby (Pisces: Gobiidae) from northern Australia. J. Ocean Sci. Found. 31:87-96. (Ref. 123066)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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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): 3.5 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (12 of 100).
![Image of Grallenia larsonae (Larson\](/images/thumbnails/gif/tn_GOBIIDT0.gif "Image of Grallenia larsonae (Larson\")
