Hermissenda crassicornis   (Eschscholtz, 1831)

hermissenda
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Hermissenda crassicornis
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Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Gastropoda | Nudibranchia | Facelinidae

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

Benthic; depth range 0 - 28 m (Ref. 865).  Subtropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Pacific Ocean and the Arctic. Subtropical to polar.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 7.0 cm TL male/unsexed; (Ref. 844); common length : 8.0 cm TL male/unsexed; (Ref. 312)

Biology     Glossary (e.g. epibenthic)

Found in oyster beds in bays in low to subtidal zones. Carnivorous; preys on hydroids, small sea anemones, bryozoans, worms, small crustacea, tiny clams, and even dead animals. Does not digest stinging capsules (nematocysts) of their prey. Instead the nematocysts are moved to the tip of the cerata and incorporated into the creature's own defense system (Ref. 312). Members of the order Nudibranchia are simultaneous hermaphrodites. Mating behavior: Both individuals darts their penis toward each other to induce one to act as a male and the other as the female. The victorious one to penetrate the body wall is the dominant male. Life cycle: Eggs are deposited on a substratum where they develop and hatch into (planktonic) vestigial veliger larval stage and further grow as adults (Ref. 833).

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

Members of the order Nudibranchia are simultaneous hermaphrodites. Mating behavior: Both individuals darts their penis toward each other to induce one to act as a male and the other as the female. The victorious one to penetrate the body wall is the dominant male. Life cycle: Eggs are deposited on a substratum where they develop and hatch into (planktonic) vestigial veliger larval stage and further grow as adults.

Main reference References | Coordinator | Collaborators

Gallivan, G. and J. Danforth. 1999. (Ref. 312)

IUCN Red List Status (Ref. 119314)


CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses


| FishSource |

More information

Common names
Synonyms
Predators
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance

Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | GenBank (genome, nucleotide) | GloBI | | Google Books | Google Scholar | Google | ispecies | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 5.1 - 18.7, mean 9.7 (based on 888 cells).
Vulnerability (Ref. 71543)
Low vulnerability (10 of 100)
Price category (Ref. 80766)
Unknown