Crisia aculeata Hassall 1841
Creators
- 1. National & Kapodistrian University of Athens, Faculty of Geology and Geoenvironment, Department of Historical Geology and Paleontology 15784, Athens (Greece) and CR 2 P (CNRS, MNHN, UPMC, Sorbonne Université), Département Origines et Évolution, UMR 7207, Muséum national d'Histoire naturelle, case postale 38, 57 rue Cuvier, F- 75231 Paris cedex 05 (France)
- 2. National & Kapodistrian University of Athens, Faculty of Geology and Geoenvironment Department of Historical Geology & Paleontology, 15784, Athens (Greece)
- 3. Géosciences Montpellier, Université de Montpellier Université des Antilles, CNRS, Pointe à Pitre, Guadeloupe, FWI (France)
Description
Crisia aculeata Hassall, 1841
(Fig. 8 A-C)
Crisia aculeata Hassall, 1841: 170, pl. 7, figs 3-4. — Harmer 1891: 132, pl. 12, fig. 4. — Hayward & Ryland 1985: 50, fig. 14. — Harmelin1990: 1602, figs 2, 3-6.
OCCURRENCE. — Recent: Eastern Atlantic (50-60 m in the North Sea, much deeper in Norway, the Bay of Biscay and Morocco: 135- 1000 m) and Mediterranean (115-480 m).
DESCRIPTION
Cellariiform colony. Internodes short (8-12 zooids). The first ramification arises from the third zooid. Pseudopores elongate and relatively rare. Gonozooid pyriform with a discrete ooeciostome situated near the base of the following zooid.
REMARKS
This species is poorly known and has rarely been illustrated. It has often been considered as a variety of C. eburnea (Linnaeus) to which it resembles. Harmelin (1990) distinguished a northern (Atlantic) and a southern form (Atlantic coast of Morocco, Mediterranean). The main differences are a higher number of zooids (9-12) per internode and a mitre-shaped gonozooid in the southern form.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Crisiidae
- Genus
- Crisia
- Kingdom
- Animalia
- Order
- Cyclostomatida
- Phylum
- Bryozoa
- Scientific name authorship
- Hassall
- Species
- aculeata
- Taxon rank
- species
- Taxonomic concept label
- Crisia aculeata Hassall, 1841 sec. Moissette, Antonarakou, Kontakiotis, Cornée & Karakitsios, 2021
References
- HASSALL A. H. 1841. - Catalogue of Irish Zoophytes. Annals and Magazine of Natural History 6: 166 - 175. https: // doi. org / 10.1080 / 03745484009443281
- HARMER S. F. 1891. - On the British species of Crisia. Quarterly Journal of Microscopical Science 32: 127 - 181. https: // www. biodiversitylibrary. org / page / 13833077
- HAYWARD P. J. & RYLAND J. S. 1985. - Cyclostome bryozoans. Synopses of the British Fauna, new series, 34: 1 - 147.
- HARMELIN J. - G. 1990. - Deep-water crisiids (Bryozoa: Cyclostomata) from the northeast Atlantic Ocean. Journal of Natural History 24: 1597 - 1616. https: // doi. org / 10.1080 / 00222939000770921