Daily Archives: Friday,October 15, 2010

Geitidoris heathi : (Heath’s dorid)– The Race Rocks Taxonomy

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Geitidoris heathi (Heath’s dorid) photo by Rayn Murphy

Geitidoris heathi (Heath’s dorid) Photo by Ryan Murphy

Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Opisthobranchia
Suborder: Nudibranchia
Superfamily: Doridoidea
Family: Discodorididae
Genus: Geitodoris
Species: G. heathi
Geitodoris heathi (MacFarland, 1905)
Synonyms Discodoris heathi

Other Members of the Phylum Mollusca at Race Rocks.

taxonomyiconReturn to the Race Rocks Taxonomy
and Image File
pearsonlogo2_f2The Race Rocks taxonomy is a collaborative venture originally started with the Biology and Environmental Systems students of Lester Pearson College UWC. It now also has contributions added by Faculty, Staff, Volunteers and Observers on the remote control webcams.  Oct 2010 , by Ryan Murphy

 

Aldisa tara : The Race Rocks Taxonomy

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rmaldisatara

Aldisa tara photo by Ryan Murphy

 

Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Order: Nudibranchia
Suborder: Doridina
Superfamily: Doridoidea
Family: Cadlinidae
Genus: Aldisa
Species:
A. tara
Binomial name
Aldisa tara

Millen, 1984

Tentative identification only.. This is a fairly rare nudibranch, only named recently.

Other molluscs at Race Rocks

taxonomyiconReturn to the Race Rocks Taxonomy and Image File
pearsonlogo2_f2The Race Rocks taxonomy is a collaborative venture originally started with the Biology and Environmental Systems students of Lester Pearson College UWC. It now also has contributions added by Faculty, Staff, Volunteers and Observers on the remote control webcams.

Ryan Murphy, 2010

Synoicum parfustis: peach-coloured compound tunicate–The Race Rocks Taxonomy

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Photo by Ryan Murphy

Photo by Ryan Murphy

The small dark spots embedded in the matrix of this Synoicum parfustis are living commensal organisms: the compound tunicate amphipod, Polycheria osborni. This amphipod lives in various compound tunicates.

 

Other Members of the Subphylum Urochordata at Race Rocks 
taxonomyiconReturn to the Race Rocks Taxonomy
and Image File
pearsonlogo2_f2The Race Rocks taxonomy is a collaborative venture originally started with the Biology and Environmental Systems students of Lester Pearson College UWC. It now also has contributions added by Faculty, Staff, Volunteers and Observers on the remote control webcams.

October 2015 (PC)

Hermissenda crassicornis: Opalescent sea slug–The Race Rocks Taxonomy

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rmhermissendacrassicornis3

Hermissenda crassicornis
Photo by Ryan Murphy

Ryan Murphy took these three photos of Hermissenda crassicornis, the opalescent-sea-slug while diving at Race Rocks. Note the bright stripe on the forehead between the sensory rhinophores.

Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Superfamily: Aeolidioidea
Family: Facelinidae
Genus: Hermissenda
Species: H. crassicornis
Hermissenda crassicornis Eschscholtz, 1831Return to the Race Rocks Taxonomy Index and gallery

This file is provided as part of a collaborative effort by the students, faculty, volunteers and staff of Lester B. Pearson College– Oct 2010 , by Ryan Murphy

Terebellid– unidentified sp. –Race Rocks taxonomy

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(They aren’t always what they first appear to be)

rmaug10longfingunl

In this photo by Ryan Murphy, the long thin, almost transparent ribbon, possibly a tentacle of a terebellid worm is shown along with a Pholus sp. gunnel and the siphons of a mollusc.

 

What we initially believed was a ribbon worm has been identified as a feeding tentacle!

We received this from Leslie Harris” I’m also pretty sure that the ribbon worm is really a terebellid feeding tentacle.  There appears to be a groove running the length of the tentacle and packets of detritus being carried in the groove back to the mouth. ”

In the following image, the tangle of tentacles are also from one of the Terebellidae.

rmaug10tentacl

Tentacles of terebellid worm. Photo by Ryan Murphy

Kingdom Animalia–animals
Classification from Animal Diversity Web: See other Annelids from Race Rocks:

Return to the Race Rocks Taxonomy Index
 The Taxonomy files are the result of collaboration between students, faculty, staff and Volunteers of Lester Pearson College— Garry Fletcher, 2010

Dendronotus diversicolor: coloured dendronotid–The Race Rocks Taxonomy

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rm241010dalbusmetandl
This image by Ryan Murphy is rather stunning because it shows the nudibranch in contact with the colonial tunicate Metandrocarpa sp.
The identifying features of Dendronotus diversicolor are the 4 pairs of gills and a white line that goes from the last gill pair to the end of the tail.

ah06610dendrotus

This is a rather unique picture by Ryan Murphy of breeding nudibranchs

Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Superfamily: Tritonioidea
Family: Dendronotidae
Genus: Dendronotus
Species: diversicolor
Alder & Hancock, 1845

 

dendronotusdivers

Dendrotus diversicolor photo by Adam Harding

 

Other Members of the Phylum Mollusca at Race Rocks.

taxonomyiconReturn to the Race Rocks Taxonomy
and Image File
pearsonlogo2_f2The Race Rocks taxonomy is a collaborative venture originally started with the Biology and Environmental Systems students of Lester Pearson College UWC. It now also has contributions added by Faculty, Staff, Volunteers and Observers on the remote control webcams.  Ryan Murphy

 

RRPAB resource documents

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https://racerocks.ca/racerock/rrab2/mparesources1.htm
This file is designed for the use of the Race Rocks Advisory Board in order to make available in one index, the resources that are most relevant to the Marine Protected Area Designation Process.

Last update Origin EXISTING VERSION
2010 DFO DFO Response to RRPAB member questions
2010 Ryan Murphy Draft Socio-Economic Overview: Nov 2010
2010 DFO RRPAB DRAFT Ecological Overview: Nov 2010
2010 RRPAB Values Input Table Update.Values Input Table of Lester Pearson College (version with embedded links for examples)
2010 rr.com The Race Rocks Marine Protected Area Advisory Board: Index of Events and Documents.
2002 RRAB Draft Management Plan for MPA
2002 PC Parks
2009 DFO Socioeconomic Base Case Update for Race Rocks Proposed Marine Protected Area
1999 G.Fletcher.
rr.com		 Gaps in research .. RREO workshop 1999
2001 DFO Race Rocks Pilot Marine Protected Area, An Ecological Overview, Wright and Pringle, IOS 2001 25mb PDF file Changes needed- R. Murphy
2009 G.Fletcher.
rr.com		 Marine Protected Area General References
2002 Sean Leroy LeRoy, S., 2002. Public Process and the Creation of a Marine Protected Area at Race Rocks, British Columbia.
Master’s Thesis. School of Community and Regional Planning, University of British Columbia, Vancouver, B.C.
2009 G.Fletcher.
rr.com		 First Nations and , the Race Rocks Area includes a link to RRAB involvement .
2009 G.Fletcher.
rr.com		 Management Issues: INDEX of the environmental disturbances by humans at Race Rocks.
2009 G.Fletcher.
rr.com		 Ecosystem Index page linking existing inventories, taxonomy and data collection
2009 G.Fletcher.
rr.com		 Education resources index page
2009 G.Fletcher.
rr.com		 MPA benefits
2009 G.Fletcher.
rr.com		 MPA boundary history
2009 G.Fletcher.
rr.com		 Guest research being done at Race Rocks, 1999-2010
2010 G.Fletcher.
rr.com		 New updates to the racerocks.com and racerocks.ca site.
2010 G.Fletcher.
rr.com		 DFO finances on RRAB Process 1999-2010-index
Condensed version with graphs and summary only.		 reinstalled sept 2, 2011
2010 DFO The Oceans Act, 1996 current to March 25, 2010
2010 DFO
Boundary MAPProposed boundary areas
2010 DFO
Boundary MAPProposed boundary areas detail
2010 rrpa meeting Draft of recommendations from the Meeting called by RRPAB members.
2010 G.Fletcher.
rr.com		 Reflections on the Role of Education and Outreach
in the MPA Designation Process, 1998-2010.
2010 Shaw Ocean Discovery centre The Case for RR MPA in 2010
The Case for Race Rocks Marine Protected Area in 2010

Family Eunicidae: unidentified– The Race Rocks Taxonomy

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We are currently trying to identify this polychaete worm. The image was taken underwater at Race Rocks by Ryan Murphy, 2010.

rmannelid1

unidentified annelid Photo by Ryan Murphy

In a comment from Sheila Byers “I like the suggestion of a long, thin Oenonid or Lumbrinerid but I think I am seeing some gill structures over the dorsum of the anterior even though I am not seeing pronounced antennae or palps on the head – possibly an Eunicidae?”

Classification by Animal Diversity Web
View our other examples of Annelids at  Race Rocks
Return to the Race Rocks Taxonomy Index

The Taxonomy files are the result of collaboration between students, faculty, staff and Volunteers of Lester Pearson College— Garry Fletcher