172 Mr. W. K. Fisher on a new Sea-Star. 
marginal plates, actinal intermediate armature, and especially 
the armature of the adambulacral plates, is very similar 
to that of Gephyreaster. Dr. Koehler had much the difficulty 
in placing Priamaster in the system that I encountered in 
dealing with Gephyreaster. Both are related to Radiaster, 
Perrier (olim Mimaster, Sladen), and also, I think, more 
remotely to Pseudarchaster. Dr. Keehler proposes a new 
family, ‘‘ Priamastéridées.” Professor Verrill has recently 
made Mimaster, Sladen (i. e., Radiaster, Perrier), the type 
of a family, the Mimasteride (=Radiasteride, Fisher). 
Whether Gephyreaster and Priamaster belong here or in a 
separate family, Priamasteride, I do not now feel at all 
certain. But, as something of acompromise, I would suggest 
placing them in a special subfamily, Priamasterine, under 
the Radiasteride. 
XV.—A new Genus and Subgenus of East-Indian Sea-Stars*. 
By Wa rer K. FisHer, Stanford University, California. 
THE following new genus is based upon a curious Asterina- 
like species from 206 fathoms, Buton Strait, Celebes, which 
will be figured, along with the other form herein described, 
in a report on the Asteroidea taken by the U.S. Fisheries 
steamer ‘ Albatross’ in the Philippines, Celebes, and the 
Moluccas during her cruise of 1907-1910. 
PARANEPANTHIA, gen. nov. 
Characters.—Similar to Asterina in form, but with the 
adambulacral armature of Wepanthia; actinal intermediate 
plates in transverse series, and bearing a tuft of spinelets 
which becomes compressed and pectinate towards the margin 
of disk; bases of these spinelets webbed ; abactinal plates 
imbricated, divided into two areas. On centre of disk and 
along a radial band they are rather crescentic, with a few 
small plates intermingled (usually placed adorad to the 
hollow of the crescent), while between this area and the 
ambitus the plates lack the crescentic form and are arranged 
in transverse series. Superficially the plates resemble low 
parapaxille, as they bear truncate groups of slender spinelets. 
* Published with permission of the Commissioner of Fisheries. 
