DEPARTMENT OF MARINE INVERTEBRATES. 127 



previous reports, but few researches have beeu conducted in the Mu- 

 seum/ upon the general collection of marine invertebrates. It is, how- 

 ever, but fair to regard the numerous investigators engaged by the Fish 

 Commission in this line of work as collaborators of the Museum, as 

 their materials are turned over to its keeping generally in the best of 

 order, and requiring only the mechanical labor of cataloguing, the re- 

 bottling of some specimens, and the drying of others, to bring them 

 into uniformity with the arrangements of the department. The num- 

 ber of types of new species in the collection is very large and is rapidly 

 increasing. 



