ASTEROTDEA OF NORTH PACIFIC AND ADJACENT WATERS FISHEK. 9 



genus and ten now species, based on the National Museum collection, were char- 

 acterized : 



Leptychaster pacificus. 

 Leptychaster anomalus. 

 Astropectcn ornatissimus. 

 Luidia ludwigi. 

 Luidia asthenosoma. 



Uenricia aspera. 



Henricia polyacantha. 



Crossaster (now Ilrterozonias) altematus. 



Crossaster (now Solaster) iorealis. 



Rathhunaster califomiais (new genus). 



H. Ludwig in the Zoologischer Anzeiger for March 5, 1907 (p. 317), raised 

 Eremicaster Fisher to a full genus and changed the tyjie to Porcellanaster crassus 

 Sladen. In the same journal for July 23, 1907, W. K. Fisher criticised the char- 

 acters used by Ludwig to separate Eremicaster from Porcellanaster and called 

 attention to the fact that this writer had no power to change an established type- 

 species, which is leneirarlus, not crassus. 



In the Smithsonian Miscellaneous Collections (Quarterly Issue), volume 52, 

 Ma}' 27, 190S, W. K. Fisher called attention to a number of generic names which 

 had long been incorrectly used, and proposed substitute names. The changes 

 instituted, some of which affect the nomenclature of the present paper, were as 

 follows : 



Anasterias Perrier has precedence over Sporasterixis. 



Anasterias Ludwig {not Perrier) becomes Lysasterias Fisher. 



Gymnasteria Gray becomes Asterope Miiller and Troschel. 



Asteropsis of authors (not Miiller and Troschel) becomes Petricia Gray. 



Crenaster Perrier (not d'Orbigny) becomes Dytaster Sladen. 



Ctenaster Perrier (not Agassiz) becomes Lxtmaster Fisher. 



Diplasterias Perrier is a synonym of Pisaster Miiller and Troschel. 



Goniodon Perrier (antedated by Goniodon Herrick) becomes Diplodontius 

 Fisher. 



Patiria Gray is a synonym of Asterina Nardo. 



Patiria Perrier (noi Gray) becomes Parasterina Fisher. 



Pararchaster Sladen is a synonym of Benfhopecfen Verrill. 



Pentaceros Schulze (nonbinomial) becomes Oreaster Miiller and Troschel. 

 The same facts were published in the Zoologischer Anzeiger for August IS, 1908. 

 A. E. Verrill, in Descriptions of the New Genera and Species of Starfishes from 

 the North Pacific Coast of America," diagnosed the following forms: 



Solaster galaxides, Victoria, British Columbia. 



Solaster constellatus, Paget Sound. 



Pteraster octaster, Bering Island. 



Pteraster hehes, Departure Bay, British Columbia. 



Hippasteria spinosa, Departure Bay, British Columbia. 



Tosia. arctica, Bering Island. 



Asterias (Pisaster) papulosa, Vancouver Island. 



AUasterias rathbuni (new genus and species) Maloska. 



Asterias (Vrasterias) fonipulata , Departure Bay, British Columbia. 



Asterias polythela, Arctic coast of Alaska. 



Asterias victoriana, Victoria, British Columbia. 



o Amer. Journ. Sci., July, 1909, pp. 59-70. 



