PROCEEDINGS OF THE UNITED STATES NATIONAL MUSEUM 



issued 



SMITHSONIAN INSTITUTION 



U. S. NATIONAL MUSEUM 



Vol. 99 Washington: 1949 No. 3239 



A NEW SPECIES OF COPEPOD OF THE GENUS 

 CORYCAEUS FROM THE NORTH AMERICAN COAST 



By Mildred Stratton Wilson 



Plankton collections from two coastal areas of North America, 

 sent to the United States National Museum for identification, have 

 been found to contain an unknown species of the cyclopoid copepod 

 genus Corycaeus. These collections were recently made at Beaufort 

 Inlet, North Carolina, by William H. Sutcliffe, Jr., and in the Gulf of 

 Mexico by Joel W. Hedgpeth. In addition, examination of a single 

 female from the Chesapeake Bay area, reported by C. B. Wilson 

 (1932) as Corycaeus lubhockii Giesbrecht, shows that it also is refer- 

 able to this species. 



Family CORYCAEIDAE 

 Genus CORYCAEUS Dana 



CORYCAEUS (DITRICHOCORYCAEUS) AMERICANUS, new species 



Plate 18 



Corycaeus luMockii, C. B. Wilson, 1932, p. 42. 



/Specimens examined. — 1 female, 8 males, collected in plankton tow 

 just inside Beaufort Inlet, N. C, at high tide, June 20, 1947, by Wil- 

 liam H. Sutcliffe, Jr. Occurring with Corycaeus {Ditrichocorycaeus) 

 amazonicus F. Dahl. 



4 females, 4 males, collected in plankton tow, Point Aransas, Tex., 

 April 18, 1946; 1 female, near shore, Texas coast. Gulf of Mexico, 

 April 20, 1947, by Joel W. Hedgpeth. Also occurring with C. 

 amazonicus. 



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