Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Eupercaria/misc
(Various families in series Eupercaria) > Callanthiidae
Etymology: Grammatonotus: Greek, gramma, atos = signal, mark + Greek, noton = back (Ref. 45335); xanthostigma: Name from Greek 'xanthos' for yellow and 'stigma' for spot; referring to the yellow spot at the upper base of the pectoral fin; noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Marine; pelagic-neritic; depth range ? - 142 m (Ref. 116412). Tropical
Western Pacific: Micronesia, Caroline Is. Senyavin Is., off Pohnpei I
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.1 cm SL male/unsexed; (Ref. 116412)
Morphology | Morphometrics
This species is distinguished from its congeners except G. brianne, by the following set of characters: caudal fin is rhomboid shaped with mid-caudal rays produced; lateral-line disjunct; anal-fin spines are short; differs from G. brianne by the absence of scales on dentary (vs. present), measurements of several body parts, caudal fin rhomboid shaped in both species, but posterior halves of dorsalmost and ventralmost borders of fin slightly concave in G. xanthostigma (vs. gently rounded to convex) and a bright yellow spot at upper base of pectoral fin (vs. absent) (Ref. 116412).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Anderson, W.D. Jr. and G.D. Johnson, 2017. Two new species of callanthiid fishes of the genus Grammatonotus (Percoidei: Callanthiidae) from Pohnpei, western Pacific. Zootaxa 4243(1):187-194. (Ref. 116412)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
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=0.00977 (0.00375 - 0.02544), b=3.08 (2.86 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.2 ±0.4 se; based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .