Answers are grounded in this paper and cite their sources.
to note in this connection that the strong infusion of arctic forms found in reporting on the Hydroida of the Hawaiian region "is not to be found in the alcyonarian fauna.The Pennatulacea is a group mainly found in deep water in all seas, and its occurrence in this collection was to be expected, although the number of new species is rather larger than might have been anticipated.The most notable
No takes yet. Share an insight, caveat, or question.
C. C. Nutting (1908) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: