Gastropoda |
Nudibranchia |
Polyceridae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Demersal; depth range ? - 76 m (Ref. 79924). Tropical
Indo-Pacific: East Africa to Japan, Australia, and Hawaii. Tropical to subtropical.
Length at first maturity / Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Pustulose, body is broad and rounded posteriorly. The mantle forms an overlapping veil around the head but down each side, it is slightly narrower than the foot and the edge is reduced to a narrow ridge. Large tubercles present all over the dorsum and sides of the body. Body color ranges from a dirty white to brown, with many of the tubercles having a basal ring of white. Tubercles are often bright red with a yellow tip. Large gills are translucent white, often edged with red.
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.
Sachidhanandam, U., R.C. Willan and L.M. Chou 2000 Checklist of the nudibranchs (Opisthobranchia: Nudibranchia) of the South China Sea. The Raffles Bulletin of Zoology Supplement 7:513-537. (Ref. 78073)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
| FishSource |
Tools
More information
Trophic EcologyFood items (preys)
Diet composition
Food consumption
Predators
Population dynamicsGrowth
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvae PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
Internet sources
Estimates based on models
