Cephalorhyncha nybakkeni   (Higgins, 1986)

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

Cyclorhagida | Echinorhagata | Echinoderidae

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

Benthic; depth range 0 - 1 m (Ref. 335).  Subtropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Eastern Central Pacific: USA.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 0.0185 cm TL (female)

Short description Morphology

Mid-dorsal spines on segments 6-10, D 7 twice as long as D 6, 8, and 9, longer than D 10; lateral spines on segments 4, 7-12; lateral terminal spines long, 74.6% of the trunk length; lateral terminal accessory spines (of female) prominent, robust, 24.9% of the trunk length, 35.5% of the lateral terminal spine length; trunk relatively long and narrow, cuticle without evidence of hairs or perforation sites; posterior margin of segments with prominent pectinate fringe, especially in mid-trunk region and most apparent on ventral surface; ventral midline of segment 4 strongly cuticularized, lateroventral articulation zones suggested but not in line with zones of more posterior segments; segment 13 with apparent mid-dorsal articulation zone establishing two bilateral terminal tergal plates (Ref. 335).

Biology     Glossary (e.g. epibenthic)

Inhabits high-energy coarse beach sand (Ref. 335), or coarse calcareous sand (Refs. 1460, 335, 75777).

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

Main reference References | Coordinator | Collaborators

Adrianov, A.V., C. Murakami and Y. Shirayama. 2002. (Ref. 318)

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


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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

Vulnerability (Ref. 71543): Low vulnerability (10 of 100).
Price category (Ref. 80766): Unknown.

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