Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobiinae
Etymology: Callogobius: Greek, kalos, kallos = beautiful + Latin, gobius = gudgeon (Ref. 45335); falx: Name from Latin 'falx' for sickle, referring to the narrow bar on the caudal-fin base of the new species.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 12 - 22 m (Ref. 126574). Tropical
Western Pacific: Japan and the Philippines.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 2.3 cm SL male/unsexed; (Ref. 126574)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 7; Dorsal soft rays (total): 8 - 9; Anal spines: 1; Anal soft rays: 7. This species is distinguished by the following set of characters: D VI-I, 8-9; A I, 7; pectoral-fin rays 18-19; lateral scale rows 20-22; body depth is moderate, which is neither slender nor deep (depth at pelvic-fin origin 18.3-20.0% of SL); pelvic-fin base with frenum; caudal-fin length moderate, its margin rounded; no cephalic sensory-canal pores; interorbital papillae row (Row 3) may form two rows; postorbital papillae row (Row17) is not continuous with upper cranial papillae row (Row 18); preopercular and transverse opercular papillae rows (Rows 20 and 21, respectively) are connected, forming a single transverse row. Colouration: body with three oblique black bars, angled upwards anteriorly and continuous with black bars on dorsal fins, the anteriormost bar extending from first dorsal fin to midline of body, the two posterior bars extending from second dorsal fin to dorsal surface of body and caudal peduncle, respectively; pectoral fin white, with upper half widely (ca. 1/2 length of rays) margined with black; caudal-fin base with a narrow sickle-like bar (Ref. 126574).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Fujiwara, K., T. Suzuki and H. Motomura, 2021. Callogobius falx, a new species of goby from southern Japan. Zootaxa 5048(2):253-264. (Ref. 126574)
IUCN Red List Status (Ref. 130435: Version 2024-1)
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 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00477 - 0.02194), b=3.01 (2.83 - 3.19), 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).
