Cassis madagascariensis   Lamarck, 1822

Emperor helmet

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

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

Gastropoda | Littorinimorpha | Cassidae

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

Benthic; depth range 3 - 183 m (Ref. 83435).  Tropical; 35°N - 10°N, 90°E - 65°E (Ref. 83435)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Western Atlantic.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 35.0 cm DL male/unsexed; (Ref. 83435); common length : 35.0 cm TL male/unsexed; (Ref. 355)

Short description Morphology

Shell very large, heavy. Spire short. Shell surface with 3 rows of large knobs on body whorl. Parietal shield large and well defined, triangular. Outer lip with inner tooth-like projections. Colour: pale cream, parietal shield pale to deep salmon. Outer lip entirely cream or cream white sometimes with light brown between teeth.

Biology     Glossary (e.g. epibenthic)

Largest species of the family in the Atlantic ocean (Ref. 355). Maximum depth from Ref. 109264.

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

Members of the order Neotaenioglossa are mostly gonochoric and broadcast spawners. Life cycle: Embryos develop into planktonic trocophore larvae and later into juvenile veligers before becoming fully grown adults.

Main reference References | Coordinator | Collaborators

Leal, J.H. 2003. (Ref. 355)

IUCN Red List Status (Ref. 130435: Version 2024-1)

  Not Evaluated 

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses

Fisheries: commercial
| FishSource |

Tools

E-book | Field guide

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Human Related
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Taxonomy
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References
References

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): 21.1 - 27.5, mean 24.8 (based on 130 cells).
Vulnerability (Ref. 71543): Low vulnerability (25 of 100).
Price category (Ref. 80766): Unknown.

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