232 Natural History Bulletin! 



Dr. George ]Marx. Department of Agriculture, the spiders, 

 except the Attid.^; Professor George W. Peckham, of Mil- 

 waukee, the Attide: Mr. H. F. Wickham, State University of 

 Iowa, the Coleoptera: ]Miss Mary J. Rathbun, of the National 

 Museum, the brachyuran crabs: Mr. James E. Benedict. ^ of 

 the National Museum, the Anomoura: Professor F. H. Her- 

 rick, Adelbert College, the Alphei; Dr. W. H. Dall, of the 

 National ]\Iuseum, the IMollusca; Professor A. E. Verrill, of 

 Yale College, the star-fish, serpent-stars, and Alc3-onaria. ^ 

 The report on the Hydroida will be embodied in a forthcom- 

 ing monograph of the American Hvdroids, which is now 

 being prepared by the writer for publication bv the United 

 States National Museum. Professor W. G. Farlow. of Cam- 

 bridge, has in hand the collection of marine Alga?. 



The report on the brachyuran crabs is the farthest advanced, 

 and Miss Rathbun announces that there are about one hun- 

 dred and thirty-one species of that group in the collection, 

 including a number of new forms. Among the hvdroids. the 

 writer has found eighty-eight species, more than half of which 

 are new. constituting perhaps the largest single collection of 

 this group that has ever been made in West Indian waters, so 

 far as the results of the \arious expeditions are at present 

 known. -^ 



The educational benefits of this cruise have, it is hoped, 

 been made sufficiently manifest in the preceding pages; but 

 these results must not be regarded as limited by the advan- 

 tages secured by the members of the party. Far more impor- 

 tant considerations are the increased facilities for the investi- 

 gation of marine forms now offered by the State University 

 to the students of Iowa, and the demonstration of the practi- 

 cability of accomplishing such results at a cost which is merely 

 nominal. 



5 Mr. Benedict will probably work up the Vermes also. 



-Professor Verrill may also undertake the Crinoidea. 



'The collections of the "Albatross" will undoubtedly prove to be more 

 extensive than this, and will be included in the monograph referred to 

 above. 



