Cephalodiscida
| Cephalodiscida | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Hemichordata |
| Class: | Pterobranchia |
| Order: | Cephalodiscida |
| Families | |
|
Atubaridae | |
Cephalodiscida is one of two orders in the class Pterobranchia, which are small, worm-shaped animals. Members belong to the hemichordates.[1][2] Species in this order are sessile, living in clear water and secrete tubes on the ocean floor.[3]
Taxonomy
The order is a small one, with only two known families, each containing a single genus.
Order Cephalodiscida
- Family Atubaridae
- Genus Atubaria
- Species Atubaria heterolopha Sato, 1935
- Genus Atubaria
- Family Cephalodiscidae
- Genus Cephalodiscus
- Cephalodiscus agglutinans Harmer & Ridewood, 1914
- Cephalodiscus atlanticus Bayer, 1962
- Cephalodiscus australiensis author unknown
- Cephalodiscus calciformis Emig, 1977
- Cephalodiscus densus Andersson 1907
- Cephalodiscus dodecalophus McIntosh 1882
- Cephalodiscus evansi Ridewood
- Cephalodiscus fumosus John, 1932
- Cephalodiscus gilchristi Ridewood, 1908
- Cephalodiscus gracilis Harmer 1905
- Cephalodiscus graptolitoides Dilly 1993
- Cephalodiscus hodgsoni Ridewood, 1907
- Cephalodiscus indicus Schepotieff 1909
- Cephalodiscus kempi John, 1932
- Cephalodiscus levinsoni Harmer 1905
- Cephalodiscus nigrescens Lankester 1905
- Cephalodiscus rarus Andersson, 1907
- Cephalodiscus sibogae Harmer 1905
- Cephalodiscus solidus Andersson, 1907
- Genus Cephalodiscus
References
- ↑ animaldiversity.ummz.umich.edu
- ↑ Eol.org
- ↑ Shipley, A.E. (1902). Zoology: An Elementary Textbook. Cambridge: Cambridge University Press.
4. Harmer. S. F. 1905. The Pterobranchia ol the Siboga-Expedition. Siboga Exped .Monogr. 26. 1-131
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