This week’s
question was: can you name a Pacific coast subtidal marine invertebrate? The book referenced is itself the answer,
i.e., there are a lot of pacific coast subtidal marine invertebrates out
there. Let me link you to a few
representative images:
The book is Pacific CoastSubtidal Marine Invertebrates by Gotshall &
Laurent. The book was published by Sea
Challengers in 1979.