Bursatella leachii, Ragged seahare

Bursatella leachii   de Blainville, 1817

Ragged seahare

Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Bursatella leachii  AquaMaps  Data sources: GBIF OBIS
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Bursatella leachii

Classification / Names Κοινά ονόματα | Συνώνυμα | CoL | ITIS | WoRMS

Gastropoda | Anaspidea | Notarchidae

Environment: milieu / climate zone / εύρος βάθους / distribution range Οικολογία

; εύρος βάθους 0 - 30 m (Αναφ. 7727).  Tropical; 15°C - 30°C (Αναφ. 81113)

Distribution Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Εισαγωγές

Circumglobal tropical, temperate seas and the Mediterranean Sea.

Length at first maturity / Μέγεθος / Weight / Age

Γεννητική Ωρίμανση: Lm ?  range ? - ? cm Max length : 25.0 cm TL αρσενικό/απροσδιόριστο; (Αναφ. 81112)

Short description Μορφολογία

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.

Βιολογία     Γλωσσάρι (π.χ. 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 spp. (Ref. 81111).

Life cycle and mating behavior Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Eggs | Γονιμότητα | Larvae

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. 125338). Come inshore during March and April to lay its eggs. Copulation goes from several hours to several days. Once the eggs are laid, the adults return to shallow waters to die (Ref. 125338).

Main reference Αναφορές | Συντονιστής | Συνεργάτες

Burn, R. 2006. (Αναφ. 7727)

IUCN Red List Status (Αναφ. 130435: Version 2024-2)


CITES status (Αναφ. 108899)

Not Evaluated

CMS (Αναφ. 116361)

Not Evaluated

Threat to humans

Human uses


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Εργαλεία

Περισσότερες πληροφορίες

Τροφική Οικολογία
Food items (preys)
Σύσταση δίαιτας
Κατανάλωση τροφής
Θηρευτές
Οικολογία
Population dynamics
Αύξηση
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Αφθονία
Life cycle
Αναπαραγωγή
Γεννητική Ωρίμανση
Γονιμότητα
Γεννοβολία
Eggs
Egg development
Larvae
Physiology
Κατανάλωση οξυγόνου

Διαδικτυακές πηγές

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Δέντρο Ζωής | Wikipedia (Go, αναζήτηση) | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 14 - 29.1, mean 27.3 (based on 4479 cells).
Fishing Vulnerability (Αναφ. 71543): Low vulnerability (15 of 100).
Price category (Αναφ. 80766): Unknown.