Actinopteri (ray-finned fishes) > Perciformes/Uranoscopoidei
(Sand dwellers) > Ammodytidae
Etymology: Ammodytoides: Greek, ammos = sand + Greek, dytes = anyone that likes immersions, diving (Ref. 45335); xanthops: Name from the Greek 'xanthos' for yellow and 'ops' for face, referring to the dominant yellow colour of the head dorsally and anterior to the eye. More on authors: Randall & Heemstra.
Environment: milieu / climate zone / depth range / distribution range
Marine; pelagic-neritic; depth range 26 - 62 m (Ref. 83531), usually - m (Ref. ). Tropical; 0°C -
Western Indian Ocean: Mozambique.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.2 cm SL male/unsexed; (Ref. 83531)
Morphology | Morphometrics
soft rays: 23 - 24;
Vertebrae: 57 - 59. This species is distinguished by the following characters: D 48-49; A 23-24; pectoral rays 15-16 (usually 15); lateral-line scales 106-112; absence of small scales dorsally on opercle; gill rakers 5-6 + 22-25; vertebrae 57-59; body depth 10.0-11.7% SL; eye diameter 3.3-3.5% SL; when fresh dark purplish gray dorsally, pale silvery blue on sides and ventrally; yellow on interorbital and most of head anterior to eye; dusky on front of snout and tip of lower jaw; series of 6-7 black spots at edge of dorsal fin; without black dots in fins; caudal fin with a broad blackish posterior border (Ref. 83531).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Randall, J.E. and P.C. Heemstra, 2008. Ammodytes xanthops, a new species of sandlance (Perciformes: Ammodytidae) from Mozambique. Smithiana,, Publications in Aquatic Biodiversity, Bulletin No. 9: 21-25. (Ref. 83531)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 25.3 - 26.7, mean 26.1 °C (based on 8 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00324 (0.00148 - 0.00706), b=3.10 (2.91 - 3.29), 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
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (23 of 100) .