Umbellulidae Lindahl, 1874

Risaro, Jessica, Williams, Gary C., Pereyra, Daniela & Lauretta, Daniel, 2020, Umbellula pomona sp. nov., a new sea pen from Mar del Plata Submarine Canyon (Cnidaria: Octocorallia: Pennatulacea), European Journal of Taxonomy 720, pp. 121-143 : 124-126

publication ID	https://doi.org/ 10.5852/ejt.2020.720.1121
publication LSID	lsid:zoobank.org:pub:F0B07E69-BB75-4AB2-ABD4-339254FBC390
DOI	https://doi.org/10.5281/zenodo.4327961
persistent identifier	https://treatment.plazi.org/id/03B9AB31-FFEC-4439-FDA8-FA8B0A0F831E
treatment provided by	Valdenar
scientific name	Umbellulidae Lindahl, 1874
status

Treatment

Family Umbellulidae Lindahl, 1874 View in CoL

Type genus

Umbellula Cuvier, 1798 View in CoL .

Diagnosis (adapted from Williams 1990, modifications in bold)

Rachis long and slender. Axis quadrangular to round in cross section. Autozooids restricted to the distal terminus, usually forming an umbellulate cluster. Siphonozooids are present on the rachis at the base of the autozooids or on bare parts of the rachis. Sclerites either present in peduncle, rachis, and terminal cluster, or totally absent. When present, sclerites are rods, spindles or needles, three-flanged round in cross-section.

Included genera

Umbellula Cuvier, 1798 View in CoL .

Distribution

Cosmopolitan, from 250 m to over 6200 m deep ( Williams 2011).

Remarks Since sclerites were found in the rachis of U. pomona sp. nov., we added this character to the family diagnosis.

Kingdom	Animalia
Phylum	Cnidaria
Class	Anthozoa
Order	Pennatulacea
Family	Umbellulidae