Periophthalmus waltoni, Walton's mudskipper

Periophthalmus waltoni Koumans, 1941

Walton's mudskipper
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Periophthalmus waltoni
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Gobiiformes (Gobies) > Oxudercidae (Mudskippers) > Periophthalminae
Etymology: Periophthalmus: Greek, peri = around + Greek, ophthalmos = eye (Ref. 45335).
Eponymy: Lieutenant-Colonel Herbert James Walton (1869–1938) was a physician who qualified in London (1893), then joined the Indian Medical Service (1896). [...] (Ref. 128868), visit book page.

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

Marine; freshwater; brackish; demersal. Tropical

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

Western Indian Ocean: Persian Gulf to Pakistan.

Length at first maturity / Size / Weight / Age

Maturity: Lm 12.0  range ? - ? cm
Max length : 15.0 cm TL male/unsexed; (Ref. 11441)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 10 - 13; Dorsal soft rays (total): 12 - 13; Anal spines: 1; Anal soft rays: 10 - 11. Distinguished by the following characteristics: moderate to strong frenum uniting pelvic fins; medially, pelvic fins united for about one half their length; D I height moderate, its margin slightly rounded, no stripe on fin with only a few white spots posteriorly, no elongate spines; D2 with single dusky stripe inframarginally; dorsal fins not connected by membrane; D I with 10-13 spines; longitudinal scale count 91-121; head width 13.7-21.9% SL; pelvic fin length 11.8-13.9% SL; length of anal fin base 16.2-21.0% SL; length ofD2 base 23.2-27.2% SL; total D2 elements 13-14; total anal fin elements 11-12; TRDB 21-28 (Ref. 5218).
Body shape (shape guide): fusiform / normal.

Biology     Glossary (e.g. epibenthic)

Facultative air-breathing (Ref. 126274); Found on mud flats. Amphibious air-breather (Ref. 31184). Feeds on variety of ocypodid crabs (Ref. 92840).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Randall, J.E., 1995. Coastal fishes of Oman. University of Hawaii Press, Honolulu, Hawaii. 439 p. (Ref. 11441)

IUCN Red List Status (Ref. 130435: Version 2025-2)

  Least Concern (LC) ; Date assessed: 20 June 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, Search |