A Global Mission

The mission of the Ocean Census is to accelerate the discovery of ocean life to advance fundamental science, empower conservation, and fuel innovation for the future of our planet.

Join the Census

The Ocean Census Alliance unites national and philanthropic marine institutes, museums, and universities, backed by governments, philanthropy, business and civil society partners.

Gallery

Phylum

OC-SP-0002522

Species ID

OC-SP-0002522

Discovered

Phylum

Cnidaria

Species ID

OC-SP-0002522

Provisional Species Name

Calyptrophora sp_YK25-09C_OC0158

Lowest Valid Taxon Name in WoRMS

Calyptrophora

Lowest Known Rank

Genus

Status

Discovered

Does the taxonomist(s) intend to work on this material further?

4. I/We are not going to publish.

Embargo

No

Kingdom

Animalia

Phylum

Cnidaria

Class

Octocorallia

Order

Scleralcyonacea

Family

Primnoidae

Genus

Calyptrophora

Taxonomic Remarks

Dichotomous colony branching. Upward facing polyps (thus in the “japonica” complex) in whorls of 3-4 on end branchlets, 11-12 whorls / 3cm, polyps 1.8-2.2mm tall. Polyps have spine on buccal scales so are in “Species group 1” (sensu Bayer, 2001). Spines on buccal relatively short, under 0.3-0.4mm tall – this is at the margins of the key diagnostic (decision 8 in the dichotomous key for Calyptrophora, Cairns, 2018). If consider they are shorter the specimen keys out as C. tripelis (confusing as this is drawn as having no spines in Bayer 2001) – this specimen has spines. If consider the spines are over 0.3mm and thus chose the other key option, this specimen keys out as C. bayeri - That species has taller spines on the basal scale. The curvature of the opercular scales is more extreme in this specimen and the whorls of polyps are more closely spaced (and the polyps are larger on bayeri). This specimen is more robust, thicker scales. Small curved tentacular (pinnular) sclerites. Buccal scale teeth are irregular, sometimes 4, sometimes 6, sometimes not teeth but more irregular shapes. Coenenchymal scales thick rods, quite round in cross section. Is this C japonica? Looks very similar but not because this colony does not have biplanar branching.

Received All Minimal Data for Discovery

30/03/2026

Join the census

The Ocean Census Alliance unites national and philanthropic marine institutes, museums, and universities, backed by governments, philanthropy, business and civil society partners.