Phyllacanthus imperialis   Lamarck, 1816

Lance urchin

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Phyllacanthus imperialis

Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Echinoidea | Cidaroida | Cidaridae

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

Reef-associated; depth range 0 - 15 m (Ref. 800).  Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Indo-West Pacific: East Africa and the Red Sea to Australia and Japan.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 7.0 cm WD male/unsexed; (Ref. 800)

Biology     Glossary (e.g. epibenthic)

Maximum primary spine length: 8.0 cm. Inhabits shallow reef areas at depths of 0 to 15 m. Hides in holes or under corals at day time (Ref. 800); and burrows in coral rock (Refs. 81254, 129602). Feeds on algae and small invertebrates (Ref. 800). Associated with coral communities. Nocturnal. Feeds on encrusting organisms (Ref. 129602).

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

Members of the class Echinoidea are gonochoric. Fertilization is external. Brooding is common, eggs are held either on the peristome, around the periproct or deep into the concavities on the petaloids. Life cycle: Embryos develop into planktotrophic larvae (echinoplateus) and live for several months before they sink to the bottom using their tube feet to adhere on the ground where they metamorphose into young urchins.

Main reference References | Coordinator | Collaborators

Schoppe, S. 2000. (Ref. 800)

IUCN Red List Status (Ref. 130435)

  Not Evaluated 

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless

Human uses


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Tools

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More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Common names
Synonyms
Predators
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance
References
Mass conversion
Collaborators
Pictures

Internet sources

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

Estimates based on models

Preferred temperature (Ref. 115969): 22.6 - 29.3, mean 28.2 (based on 2492 cells).
Vulnerability (Ref. 71543): Low vulnerability (10 of 100).
Price category (Ref. 80766): Unknown.