REPORT OF NATIONAL MUSEUM, 1910. 37 



specimens, of sea urchins, of the family Echinothuridse, forming 

 the type set of the specimens on which was based the recent mono- 

 graph by Dr. Alexander Agassiz and Dr. H. L. Clark, published by 

 the Museum of Comparative Zoology; 166 specimens of alcyonarian 

 corals from the Albatross explorations m the northwestern Pacific 

 Ocean in 1906, worked up by Prof. C. C. Nutting, of the University 

 of Iowa; 64 lots of parasitic copepod crustaceans from various 

 localities, comprising an important part of the material used by Dr. 

 C. B. Wilson, of N'orthampton, Massachusetts, in his articles on this 

 group now in course of publication by the Museum; about 200 speci- 

 mens of isopod crustaceans collected by the steamer Albatross in 

 the Philippine Islands in 1907-8 and identuied by Dr. Harriet Rich- 

 ardson ; a small collection of pycnogonids from the Albatross expedi- 

 tion of 1904-5 to the eastern Pacific Ocean, named by Dr. L. J. 

 Cole, of the University of Wisconsin. With the last was a large 

 number of unidentified pycnogonids from various sources. 



An especialh^ noteworthy accession, received from Mr. J. Stanley 

 Gardiner, of the Museums, Cambridge, England, consisted of 806 

 specimens of crustaceans, representing 245 species, which had been 

 collected by H. M. S. Sealarlc in the western Indian Ocean in 1905. 

 The importance of this addition arises from the fact that the region 

 was previously very poorly represented in the Museum, while the 

 collection contains the types of 34 species and 3 new subspecies, 

 together with 3 new genera, besides many other species now obtained 

 for the first time. This is the first set of specimens and was presented 

 in consideration of the services of Lliss Rathbun, assistant curator, in 

 working up the entire collection of crustaceans from this exploration. 



The Museum d'Histoire Naturelle, Paris, France, through Prof. 

 E. L. Bouvier, contributed 30 specimens representmg 23 species of 

 isopod crustaceans, obtained by the exploring vessels Travailleur and 

 Talisman in the eastern Atlantic and European waters. Ten species 

 of sea-pens, Pennatulidae, from Japan and the Mediterranean, were 

 received in exchange from the Zoologische Sammlung des Bayer- 

 ischen Staates, Munich, Bavaria. Mr. Owen Bryant presented the 

 second set of jelly fishes, comprising 16 species, collected during his 

 cruise to Labrador in 1908. Seventy microscopic sUdes of British 

 hydroid zoophytes and 48 sUdes of rotifers from difTerent regions 

 were purchased. Through exchange some especially interesting 

 parasitic worms w^ere secured from Dr. Frederick Fiilleborn, of Ham- 

 burg, Germany, and Prof. A. E. Shipley, of Cambridge University, 

 England. The collection of the Smithsonian African Expedition 

 contained over 400 specimens of crustaceans and worms from British 

 East Africa and Aden, the most important beuag examples of several 

 fresh-water crabs, Potamonidw, from the mountams of east Africa. 



