(644 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. XXXIV. 
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 col- 
lection was to be expected, although the number:of new species is 
rather larger than might have been anticipated. The most notable 
fact in regard to the Gorgonacea is the entire absence of representa- 
tives of the great family Gorgonide, the scarcity of the Briareide, 
and the surprisingly rich representation of the Primnoide, and par- 
ticularly of the Chrysogorgide, which leads the lst of familes with 
17 species, exactly one-fourth of all the species found, 9 of which. 
are new. : 
In order to show the general facies of the alcyonarian fauna of 
the Hawaiian region the following synopsis is presented : 
SYSTEMATIC SYNOPSIS OF THE HAWAIIAN ALCYONARIA. | 
* 
Order ALCYONACEA. 
Family CoRNULARID, - 
Clavularia spiculicola, new species. 
Clavularia corrugata, new species. 
Family ALCYONIDA, 
Anthomastus steenstrupi Wright and Studer. 
Fainily NEPHTHYID. 
Spongodes aleranderi, new species. 
~ Siphonogorgia collaris, new species. 
Order PENNATULACHA. 
Family PENNATULID®. 
Pennatula sanguinea, new species. 
Pennatula flava, new species. 
Pennatula pallida, new species. 
Pennatula pearceyi Wolliker. 
Halisceptrum abies WKolliker. 
Family ECHINOPTILIDA. 
Echinoptilum macintoshi Hubrecht. 
Family ANTHOPTILIDA. 
Anthoptilum murrayi YWolliker. 
« Hydroids of the Hawaiian Islands collected by the steamer Albatross in 1902, 
by C. C. Nutting, Bulletin U. S. Fish Commission, 1903, Part 3, p. 935. 
