REPORT OF NATIONAL MUSEUM, 1910. 37 
specimens, of sea urchins, of the family Echinothuride, 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 in 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 Northampton, 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 identified 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 especially 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. Sealark 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 Miss Rathbun, assistant curator, in 
working up the entire collection of crustaceans from this exploration. 
The Museum d’Histoire Naturelle, Paris, France, through Prof. 
HK. L. Bouvier, contributed 30 specimens representing 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, Pennatulide, 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 slides of British 
hydroid zoophytes and 48 slides of rotifers from different regions 
were purchased. Through exchange some especially interesting 
parasitic worms were 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 being examples of several 
fresh-water crabs, Potamonide, from the mountains of east Africa. 
