You can sponsor this page

Bursatella leachii   de Blainville, 1817

ragged seahare

Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Bursatella leachii   AquaMaps   Data sources: GBIF OBIS
Upload your photos and videos
| All pictures | Google image |
Image of Bursatella leachii (ragged seahare)
Picture by Pillon, Roberto

Classification Common names | Synonyms | CoL | ITIS | WoRMS

Gastropoda | Anaspidea | Notarchidae

Main reference References | Biblio | Coordinator | Collaborators

Burn, R. 2006. (Ref. 7727)

Size / Weight / Age

Max length : 25.0 cm TL male/unsexed; (Ref. 81112)


Benthic; depth range 0 - 30 m (Ref. 7727)

Climate / Range

Tropical; 15°C - 30°C (Ref. 81113)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Circumglobal tropical, temperate seas and the Mediterranean Sea.

Short description

This is a medium- to large-sized benthic opisthobranch mollusc. The body is variably colored, grayish-green to white-tan with dark brown blotches and spots, compact and rounded, with distinct head and neck regions evident. The body is also covered with numerous long, branching fleshy papillae that give the animal its ragged appearance. The gill is covered by a pair of fleshy parapodia. Two long retractile olfactory tentacles called rhinophores occur on the head, and also two fleshy enrolled oral tentacles occur at each side of the mouth. Adults completely lack a shell.

Biology     Glossary (e.g. epibenthic)

Assumed maximum length from Ref. 844. Commonly found in estuaries and tidal swimming pools (Ref. 866). Known from depths of 0 to 30 m (Ref. 7727). It is known to secrete purple ink which is produced from the purple gland, speculated to be a defensive decoy (Ref. 81111). The ink may also be a metabolic by-product in response to eating algae, particularly red algae, as observed with the species under the genus Aplysia (Ref. 81114). Primarily feeds on cyanophytes and diatom mats and films found on sand, mud and other benthic substrata; facultatively it consumes Ectocarpus and Enteromorpha (Ref. 81111). This is a cross-fertilizing simultaneous hermaphrodite. This is done through internal fertilization wherein one individual transfers its sperm by its eversible penis on the right side of the head to the gonopore of the other individual on the dorsal side. It then lays spaghetti-like benthic egg masses in orange, yellow, green, or brown colors. This is comprised of capsules that contains 1 to 20 eggs. Sexual maturity is attained at the age of 2 to 3 months. Reproductive season is still undefined (Ref. 81111).

IUCN Red List Status (Ref. 114614)


CITES status (Ref. 94142)

Not Evaluated

Threat to humans

Human uses

| FisheriesWiki |

More information

Common names
Egg development
Mass conversion

Internet sources

BHL | BOLD Systems | Check for other websites | Check FishWatcher | CISTI | DiscoverLife | FAO(Publication : search) | GenBank (genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | ispecies | National databases | PubMed | Scirus | FishBase | Tree of Life | uBio | uBio RSS | Wikipedia (Go, Search) | Zoological Record

Estimation of some characteristics with mathematical models

Vulnerability (Ref. 71543)
Low vulnerability (10 of 100)
Price category (Ref. 80766)