172 Mr. W. K. Fislier on a neio Sea-Star, 



marginal plates, actiiial intermediate armalure, and especially 

 tlie armature of the iidanibulacral plates, is very similar 

 to that of Gephyreafiter. Di. Koeliler had niucli the difficulty 

 in placing- Priamofifer 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 Pseudnrchaster. Dr. Koehlpr proposes a new 

 family, " Prianiasldridees/' Professor Verrill has recently 

 made j]Jimastc7\ Sladen (i. e., Badiaster, Perrier), the type 

 of a faniil}^, the Mimasterida3 ( = Iladiasteri(la3, Fisher). 

 Whether Gephyreaster and Friamaster belong here or in a 

 separate family, Priamasteridge, I do not now feel at all 

 certain. But, as something of a compromise, I would suggest 

 placing them in a special subfamily, Priaraasterina?, under 

 the Radiasteridse. 



XV. — A new Genus and Subgenus of East-Indian Sea-Stars*. 

 By Walter 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 JSepanthia ; 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 tw^o 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 

 parapaxillee, as they bear truncate groups of slender spinelets. 



* Published with permission of the Commissioner of Fisheries. 



