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Aseraggodes xenicus (Matsubara & Ochiai, 1963)

Dwarf sole
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Aseraggodes xenicus   AquaMaps   Data sources: GBIF OBIS
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Image of Aseraggodes xenicus (Dwarf sole)
Aseraggodes xenicus
Picture by Randall, J.E.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Pleuronectiformes (Flatfishes) > Soleidae (Soles)
Etymology: Aseraggodes: Greek, aggos, -eos, -ous = vessel, uterus, carapace of a crab + Greek, aseros, -a, -on = to remove the appetite (Ref. 45335).

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; demersal; depth range 6 - 10 m (Ref. 56490). Temperate

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Indo-West Pacific: Sodwana Bay (South Africa), Porto Amelia (Mozambique) and Japan.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 8.0 cm TL male/unsexed; (Ref. 3200)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 64 - 67; Anal spines: 0; Anal soft rays: 42 - 44; Vertebrae: 33 - 34. Diagnosis: Dorsal rays 64-67; anal rays 42-44; dorsal and anal rays are not branched. Caudal rays 18, the middle 14 branched. Lateral-line scales of ocular side 64-67; the line extending forward nearly to upper eye, with a ventral branch on head following the edge of the preopercle. Vertebrae 10 + 23-24. Dorsal pterygiophores anterior to fourth neural spine 14-15. Body depth 2.4-2.5 in SL; head length 3.55-3.65 in SL; snout long, 2.6-2.95 in head length; interorbital space narrow, 13.7-20.8 in head length. Caudal peduncle very short, 19.5-23.2 in HL. Tubular anterior nostril anterior to upper edge of lower eye, just reaching cutaneous edge of lower orbit when depressed posteriorly. Two rows of scales in interorbital space, none extending onto medial edges of eyes. Anterior edge of snout of largest specimen (23 mm SL) with a series of 12 conspicuous lappet-like cirri. Ventral margin of head with 20 similar cirri, the longest on chin about equal to pupil diameter; no cirri on opercular edge of either side of gill opening. Jaws of blind side surrounded by a zone of small papillae. Dorsal and anal rays long, the longest dorsal ray 2.5-3.0 in HL. No sheath of scales over base of dorsal and anal fins, at most one row of scales over basal part of rays. Rounded caudal fin and moderately long, 3.2-3.45 in SL. Pelvic fins long, reaching base of third or fourth anal ray, 1.65-1.9 in HL. Color of ocular side when fresh light gray with large irregular dark-edged white spots on head and body, scattered small whitish spots, fewer small black spots, a black spot the size of eye on lateral line in middle of body and a double black spot on lateral line in middle of posterior half of body (Ref. 56490).

Biology     Glossary (e.g. epibenthic)

Inhabits sand bottoms including reef flats and tide pools in 0-10 m (Ref. 90102).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Heemstra, P.C. and O. Gon, 1986. Soleidae. p. 868-874. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 3200)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 06 March 2015


Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans


Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet compositions
Food consumptions
Food rations
Population dynamics
Max. ages / sizes
Length-weight rel.
Length-length rel.
Mass conversions
Life cycle
Spawning aggregations
Egg developments
Larval dynamics
FAO areas
BRUVS - Videos
Gill areas
Body compositions
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fish sounds
Diseases / Parasites
Toxicities (LC50s)
Human related
Aquaculture systems
Aquaculture profiles
Ciguatera cases
Stamps, coins, misc.


Special reports

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 23.5 - 28.9, mean 27 °C (based on 509 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00473 - 0.02021), b=3.07 (2.90 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.4   ±0.5 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).