32 A XX UAL REPORT OF THE 



REPORTS ON THE LOWER INVERTEBRATES. 

 ECHINODERMS. 



By Hubert Lyman Clark. 



A large part of the year has been given to the labeling and 

 cataloguing of the crinoids, Echini, and ophiurans, but much 

 attention has been paid to the preparation of reports on special 

 collections, particularly a very large collection of ophiurans 

 made by the " Albatross" in the North Pacific Ocean. Exchanges 

 have been effected with a number of museums and individuals, 

 the most important of which were with the University of Wash- 

 ington, through Prof. Trevor Kincaid, a large and varied assort- 

 ment of echinoderms from Puget Sound; the Zoological Museum, 

 Amsterdam, through Dr. Max Weber, a very valuable lot of 

 Echini, ophiurans, and holothurians, collected by the "Siboga"; 

 the Zoological Museum, Strassburg, through Dr. Ludwig Doder- 

 lein, an interesting series of Echini, chiefly collected by himself in 

 Japanese waters, also a few species collected by the "Valdivia"; 

 the Royal Zoological Museum, Berlin, through Dr. Robert Hart- 

 meyer, a very choice series of ophiurans, chiefly cotypes of 

 Studer's species, including many collected by the "Gazelle." 



Important additions to the collections have been made by 

 purchase from A. Haylock, Alan Owston, and Ward's Natural 

 Science Establishment. Mr. Thomas Barbour has generously 

 donated a collection, containing 362 specimens, chiefly asteroids 

 and ophiurans, made by himself in the Dutch East Indies. The 

 Assistant has added about two hundred specimens, collected off 

 Marblehead, Mass., and near South Harps well, Maine. 



The card-catalogue of crinoids has been completed; at the end 

 of the year, there were 1,510 specimens, of which 1,330 are alcoholic, 

 representing 28 genera and 110 species. This collection has been 

 extensively studied by Mr. Austin Hobart Clark, and most of the 

 identifications were made by him. An exchange with the U. S. 



