Octopus chierchiae

Classification (WoRMS)

Full classification as recorded by WoRMS: Kingdom: Animalia · Phylum: Mollusca · Class: Cephalopoda · Order: Octopoda · Family: Octopodidae · Genus: Octopus.

Accepted name: Octopus chierchiae · Authority: Jatta, 1889 · Taxonomic status: accepted · AphiaID: 341962.

Source: World Register of Marine Species (WoRMS) — https://www.marinespecies.org/aphia.php?p=taxdetails&id=341962 (CC BY 4.0). Accessed 2026-09-25.

Biology and life history (SeaLifeBase)

Measured values published by SeaLifeBase for Octopus chierchiae. Only fields the database actually holds for this species are shown; these are database values, not aquarium guidance.

Maximum length: 2.5 cm · Depth range: 0–100 m · Habitat zone: benthic · Vulnerability index: 10 of 100.

SeaLifeBase notes: Maximum total length is 4 cm (Ref. 96968). This is a benthic species found on rubble and sandy bottoms particularly in intertidal and subtidal areas (Ref. 83938).

Source: SeaLifeBase species summary (SpecCode 57319) — https://www.sealifebase.se/summary/Octopus-chierchiae.html (CC BY-NC 3.0 — non-commercial use only). Accessed 2026-09-25.

Distribution and occurrence records (GBIF)

38 georeferenced occurrence records for Octopus chierchiae are published through GBIF from 6 countries or marine areas. The map above plots 15 distinct locations from a sample of 38 records, omitting 7 inland records that carry an institution's coordinates rather than a collection site; it shows where the species has been observed and reported, not a modelled range.

Most records by country or area: Panama (12); Nicaragua (8); Costa Rica (5); Mexico (5); El Salvador (5); Colombia (3).

Marine regions with a valid WoRMS distribution record: Eastern Central Pacific.

Source: GBIF Occurrence Search (taxonKey 2289548) — https://www.gbif.org/occurrence/search?taxon_key=2289548&has_coordinate=true (records CC0 / CC BY); WoRMS distribution records (MarineRegions) — https://www.marinespecies.org/aphia.php?p=taxdetails&id=341962 (CC BY 4.0); Natural Earth 110m basemap — https://www.naturalearthdata.com/ (public domain). Accessed 2026-09-25.

Conservation status (IUCN Red List)

The IUCN Red List assesses Octopus chierchiae Jatta, 1889 as Data Deficient (code DD). No trend, population estimate or threat analysis is given here, because none is available from this source without the Red List API; follow the source link for the full assessment, including its date.

Source: IUCN Red List of Threatened Species (taxon 163109) — https://www.iucnredlist.org/species/163109/0; GBIF IUCN Red List category endpoint (taxonKey 2289548) — https://api.gbif.org/v1/species/2289548/iucnRedListCategory. Accessed 2026-09-25.

Description and natural history (Wikipedia)

Juvenile O. chierchiae hatch at approximately 3.5 mm mantle length and typically lack the species' characteristic dark-and-light striped pattern, which becomes visible with magnification around five days post-hatching. Under favorable conditions, juveniles reach adult size in about 250–300 days. Adult O. chierchiae have a mantle length of about 20 mm—comparable to the size of a grape—and exhibit bold, individually unique stripe patterns across the mantle and arms that remain stable throughout life. The largest mantle length recorded for the species is approximately 25 mm.

Sexually mature males can be identified by a modified third right arm, the hectocotylus, which lacks suckers and is used to transfer spermatophores during mating; males may also display a tasseling behavior characterized by rapid shaking of the arm tips. O. chierchiae generally reach sexual maturity at around six months of age. Unlike most octopus species, which are semelparous, O. chierchiae are iteroparous and can lay multiple clutches of eggs, up to twelve clutches in their reproductive life stage, at intervals of approximately 30 to 90 days.

Distribution and habitat

O. chierchiae is native to the eastern tropical Pacific– specifically, the central Pacific coast of the Americas, most notably Panama and Costa Rica. Its natural habitat consists of benthic, shallow coastal environments, including intertidal to shallow subtidal zones with rocks, shells, rubble, and crevices where it can hide.

Given the limited field observations on record, the full extent of its wild distribution and population density remains incomplete.

Behavior and ecology

In both natural and captive environments, O. chierchiae behaves as a typical benthic predator and crevice-dweller, feeding on small crustaceans and other invertebrates typical of other octopus species. O. chierchiae uses the shells, rubble, and rock crevices found in its environment as shelter. Contrary to the typical solitary nature of most octopus species, O. chierchiae tolerates relatively high-density communities in captivity, which is highly advantageous for research and husbandry. In addition, O. chierchiae's small size and comparatively small resource requirements offer advantages for laboratory use over other octopus species.

Life cycle and reproduction

Hatchlings emerge with a mantle length of ~3.5 mm and, in ~250-300 days, will grow to adulthood with a mantle size of 20-30 mm. Sexual maturity occurs at around 6 months of age.

Females have been observed to lay successive clutches approximately every 30-90 days under captive conditions. Hatchlings will emerge immediately as juveniles (I.e., no larval stage). Mating involves the male using his hectocotylus to transfer spermatophores to the female's mantle cavity.

A defining feature of O. chierchiae is its iteroparity, the capacity to produce multiple clutches of eggs over its lifespan. The O. chierchiae is capable of laying up to twelve clutches in its lifetime, averaging 30-90 days between each clutch, making it well-suited for multi-generational laboratory studies and controlled breeding.

Source: Wikipedia: Octopus chierchiae — https://en.wikipedia.org/wiki/Octopus_chierchiae (CC BY-SA 4.0). Accessed 2026-09-25.