ASTEROIDEA OF THE NORTH PACIFIC AND ADJACENT 



WATERS 



By Walter Kenrick Fisher 

 Professor of Zoology and Director of the Hopkins Marine Station of Stanford University, California 



PART 2. FORCIPULATA (Part) 



FOREWORD 



Part 1 of this work, comprising the Phanerozonia and Spinulosa, was issued on 

 June 30, 1911. The present part contains an account of the families Brisingidae, 

 Zoroasteridae, and four subfamilies of the Asteriidae — the Pedicellasterinae, Labidi- 

 asterinae, Coscinasteriinae, and Pycnopodiinae. The remainder of the Forcipulata 

 will be described in the final installment, the manuscript of which is completed. 



Material for study has been derived from the sources which were indicated in 

 Part 1 (p. 1). In addition I have gone over the British Museum collection; some of 

 the types in the Museum d'Histoire Naturelle at Paris; the collection of the Peabody 

 Museum, Yale University (including a part of VerruTs material); and all of the 

 collection of the United States National Museum. Through the kindness of Dr. T. 

 Odhner, of the Riksmuseum, Stockholm, I received a small collection from the Vega 

 Expedition as well as miscellaneous Arctic specimens for comparison. The Victoria 

 Memorial Museum (now the National Museum of Canada), Ottawa, forwarded certain 

 of VerruTs types. Dr. Th. Mortensen loaned cotypes of Asterias amurensis and an 

 authentic example of Leptasterias ochotensis. Dr. Jules Richard, of the Mus6e 

 Oc^anographique at Monaco, loaned a cotype of Sclerasterias guernei. Dr. H. L. 

 Clark loaned a considerable amount of material from the rich collection of the 

 Museum of Comparative Zoology and, with great patience, has allowed me to dissect 

 many of the AsteriidEe in his care; while Mr. Austin H. Clark has been equally liberal 

 with material from the National Collection. Prof. Wesley R. Coe has aided me in 

 my study of VerriU's types at the Peabody Museum and in the search for those which 

 are missing. I have been greatly indebted to Dr. R. Kirkpatrick, of the British 

 Museum, for a number of photographs, notes on types, and for the loan of specimens 

 prior to a special trip which I made in 1923 to the British Museum. Dr. C. McLean 

 Fraser, formerly director of the Canadian Biological Station, Nanaimo, British 

 Columbia, has contributed specimens and aided my search for others at Departure 

 Bay, British Columbia. The California Academy of Sciences has financed consid- 

 erable collecting in the region of Puget Sound and in Lower California. The material 

 is credited in the lists of specimens. My thanks are due to several friends who have 

 collected for me in different localities, namely: Mr. Philip Baxter, Dr. J. C. Brown, 



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