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You are here:   animal list > Botryllus schlosseri

 

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Botryllus schlosseri (Pallus 1766)

 The Star Ascidian

Dylan Moffitt (2011)


 

 

 

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Overview

Brief Summary


Comprehensive Description


Distribution


Physical Description

Size


Identification Resources


Ecology

Local Distribution and Habitats


Biogeographical Distribution


Micro-habitats and Associations


Crypsis


Life History & Behaviour

Behaviour


Cyclicity


Evolution & Systematics

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Systematics or Phylogenetics


Morphology and Physiology

External Morphology


Internal Anatomy


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Nucleotide Sequences


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Conservation

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Content Summary

Brief Summary

 

Botryllus schlosseri is an encrusting, colonial ascidian commonly found on subtidal hard substrata (Carver et al. 2006). It is a filter-feeder and a sequential, cyclical hermaphrodite. Colonies are compound, comprised of many zooids, grouped into stellate systems around a common atrial siphon, embedded in a tunic matrix (Rinkevich et al. 1998).

It has a cosmopolitan distribution thought to be the result of a wide temperature and salinity tolerance range (Epelbaum et al. 2009a). Colonies of B. schlosseri were found on Heron Island under coral fragments in shallow intertidal environment on the reef crest.

 

Figure 1: A sketch of a botryllus schlosseri colony found on Heron Island

 

Classification

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Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Stolidobranchia
Family
Styelidae
Genus
Botryllus

Synonyms

Alcyonium borlasii (Turton, 1807)
Alcyonium schlosseri (Pallas, 1766)
Aplidium verrucosum (Dalyell, 1839)
Botryllus aurolineatus (Giard, 1872)
Botryllus badium (Alder & Hancock, 1912)
Botryllus badius (Alder & Hancock, 1912)
Botryllus bivittatus (Milne Edwards, 1841)
Botryllus calendula (Giard, 1872)
Botryllus calyculatus (Alder & Hancock, 1907)
Botryllus castaneus (Alder & Hancock, 1848)
Botryllus gascoi (Della Valle, 1877)
Botryllus gemmeus (Savigny, 1816)
Botryllus gouldii (Verrill, 1871)
Botryllus marionis (Giard, 1872)
Botryllus miniatus (Alder & Hancock, 1912)
Botryllus minutus (Savigny, 1816)
Botryllus morio (Giard, 1872)
Botryllus polycyclus (Savigny, 1816)
Botryllus pruinosus (Giard, 1872)
Botryllus rubens (Alder & Hancock, 1848)
Botryllus rubigo (Giard, 1872)
Botryllus smaragdus (Milne Edwards, 1841)
Botryllus stellatus (Gaertner, 1774)
Botryllus violaceus (Milne Edwards, 1841)
Botryllus violatinctus (Hartmeyer, 1909)
Botryllus virescens (Alder & Hancock, 1848)

Common Names

stor lædersøpung
gesterde geleikorst
paarse geleikorst
golden star tunicate
star ascidian
star squirt
botrylle étoilé
Stern-Seescheide
ウスイタボヤ
blomsjöpung