papery burnupena & nodular bryzoan
 
Papery burnupena(Burnupena papyracea) and Nodular bryzoan(Alcyonidium spp)
Papery burnupena(Burnupena papyracea) and Nodular bryzoan(Alcyonidium spp)
Wednesday 1st September 2010

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Species Burnupena papyracea
Common name Papery burnupena
Photographer Glen Jacoby
Dive Site Sharkgully (PE)
Date 22/08/2010
Depth 16m
Size 25mm


 

 

 

 

 

Species Alcyonidium spp
Common name Noduler bryzoan
Photographer Glen Jacoby
Dive Site Sharkgully (PE)
Date 22/08/2010
Depth 16m
Size 1mm


 

 

 

 

 


Papery burnupena(Burnupena papyracea)
Noduler bryzoan(Alcyonidium spp)

Subject: Re: range extension?
Date: Thu, 02 Sep 2010 09:17:18 +0200
From: George & Margo Branch
To: Georgina Jones


Hello Georgina: You are correct: this is a Burnupena with Alcyonidium attached (and the lophophores extended as you say). The only slight hesitation I have is that there is another (rare) Burnupena that also has a coating of Alcyonidium. No-one has ever checked to see if the 'other' Alcyonidium is a different species, or just the same species living on another Burnupena. I can't offhand remember the species of Burnupena, but I'll go back to the original paper by Yvonne Dempster and check if it could be that. It'll have to wait until I get up to UCT as that's where I have the paper. But I must say that the shape looks like B. papyracea.

George & Margo Branch
Two Oceans
(A guide to the marine life of Southern Africa)


Hi George 

Johan got a question about the animal on this whelk as you can see he confused it with a hydroid - I said it's the papery burnupena with the nodular bryozoan on it and the fuzziness is the feeding lophophores,but according to Two Oceans, the whelk only goes as far as Cape Agulhas.  What do you think?

Best wishes

Georgina Jones
(A field guide to the Marine Animals of the Cape
Peninsula)


 



 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
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papery burnupena & nodular bryzoan