116 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM, 



SPINACIDiE, 



THE lilTTORAIi MARUVE FAUIVA OF PROVIIVCETOWIV, CAPE COD, 



IHASSACHVSETTS. 



By RICHARD RATHBUIV. 



The species enumerated in the following list were, unless otherwise 

 stated, all collected by the United States Fish Commission during the 

 summer of 1879. As the list, however, represents only a few days' col- 

 lecting, at intervals when the steamer was not available for dredging 

 purposes, it must be considered as far from complete, especially as re- 

 gards the smaller forms, while no attempt has been made to include the 

 groups of Entomostraca, Foraminifera, &c. Considering the fact that 

 very little has yet been published concerning the shore animals of this 

 region, I feel justified in offering the hst in its present imperfect form in 



