Gastropoda |
Nudibranchia |
Dironidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Benthic. Temperate
Pacific Ocean. Climate: tropical to polar of northern hemisphere.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 12.0 cm TL male/unsexed; (Ref. 822)
Assumed maximum length from Ref. 822. Feeds on the bryozoan, Bugula pacifica (Ref. 822).
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.
Turgeon, D.D., J.F. Quinn Jr., A.E. Bogan, E.V. Coan, F.G. Hochberg, W.G. Lyons, P.M. Mikkelsen, R.J. Neves, C.F.E. Roper, G. Rosenberg, B. Roth, A. Scheltema, F.G. Thompson, M. Vecchione and J.D. Willams. 1998. (Ref. 1667)
IUCN Red List Status (Ref. 130435)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
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Tools
More information
Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance
Internet sources
Estimates based on models
Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.