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Molluscs and Others of British Columbia


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Posted by Merry on October 20, 2015 at 19:00:41:

In the dense plankton bloom, nudibranchs were strangely underrepresented.

This is the British Columbia classic, a men’s shoe size 10 nudibranch, Tochuina tetraquetra.
 photo 1.Tochuina tetraquetra DSC_2161_zpsvdl42hwz.jpg


It's also known as the orange-peel nudi.
 photo 2. Tochuina tetraquetra DSC_2313_zpswjcu1twu.jpg


Another B.C. classic, Dirona albolineata.
 photo 3. Dirona albolineata DSC_2526_zpsfe1mj7rg.jpg


Dendronotus albus
 photo 4. Dendronotus albus DSC_2618_zpsseis6clx.jpg


 photo 5. Dendronotus albus DSC_2675_zpsnx76l6uj.jpg


This color variation is also Dendronotus albus. Until recently, it had been classified as Dendronotus diversicolor.
 photo 5. Dendronotus albus DSC_2675_zpsnx76l6uj.jpg


Could this tiny one be a Dendronotus albus juvenile?
 photo 6. Dendronotus DSC_2621_zpsbh0th62c.jpg


 photo 7. Dendronotus DSC_2622_zpshntkaxts.jpg


Dendronotus iris from a white-out plankton bloom at Hoodie-Nudi Bay.
 photo 8. Dendronotus iris DSC_2117_zpsir8hhhow.jpg


Flabellina verrucosa
 photo 9. Flabellina verrucosa DSC_2613_zpsvpsqo3fa.jpg


Hermissenda crassicornis color variation
 photo 10. Hermissenda crassicornis DSC_2611_zpssisbxh5b.jpg


Adalaria proxima
 photo 11. Adalaria proxima DSC_2100_zpsvon8ldc2.jpg


Janolus fuscus
 photo 12. Janolus fuscus DSC_2531_zpsc7l1pdav.jpg


In Palos Verdes, we saw oodles of both species of Corambe eggs as well as dozens of adults, but inexplicably we never caught them mating. I was pleased to find zesty clusters of mating Corambe steinbergae.
 photo 13. Corambe  1 DSC_2636_zpsak1gedip.jpg

Corambe steinbergae
 photo 14. Corambe steinbergae DSC_2201_01_zpsb8vbqojy.jpg


Geitodoris heathi looks quite different from ones we find here. ID thanks to Dr. Jeff Goddard, who wonders if a genetic analysis might eventually show these to be a different species.
 photo 15. Geitodoris heathi DSC_2153_zpswocufpbl.jpg

Geitodoris heathi with two different yellow sponges.
The sponge at the bottom is the yellow encrusting sponge or sulphur sponge, Myxilla lacunosa, while the one at the top is the bristly ¬¬¬¬yellow sponge; note the fibers. There is uncertainty with respect to classification of that sponge.
 photo 16. Geitodoris heathi DSC_2158_zpszfsnozhq.jpg

Geitodoris heathi
 photo 17. Geitodoris heathi DSC_2609_zpsrwvcgeoq.jpg


Peltodoris nobilis
 photo 18. Peltodoris nobilis DSC_2610_zpswn5fqbc6.jpg


Tritonia festiva and a fishy friend that’s consuming something.
 photo 19. Tritonia festiva DSC_2186_zpsgr1jna7j.jpg

Here’s some behavior. Checkered hairy snails, , consume waste products from the serpulid tube worm, so I presume this snail has positioned itself thus.
 photo 20. Checkered hairy snail DSC_2416_zps76je9oga.jpg


Blue topsnail, Calliostoma ligatum
 photo 21. Calliostoma ligatum comp DSC_2698_zps3irzxfd2.jpg


The Oregon Triton, Fusitriton oregonensis, is the state seashell of Oregon.
 photo 22. Oregon triton DSC_2409_zpsbjyednft.jpg


Blue-line Chiton, Tonicella undocaerulea
 photo 23. Blue-line chiton DSC_2267_zpsyxnuv0kl.jpg


Basket Star, Gorgonocephalus eucnemis
 photo 24. Basket star DSC_2385_zpsvchvyckk.jpg


Basket Star
 photo 25. basket star DSC_2567_zpsbs7jc1qs.jpg


Sea Grape, Derbesia marina
 photo 26. Derbesia marina sea grapes DSC_2269_zpsbo7qmcub.jpg


 photo 27. Driftwood chair The end DSC_2348_zpskohb7pqe.jpg



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