VERRILL, SYNOPSIS OF POLYPS AND CORALS. 315 



XIII. Synopsis of the Polyps and Corals of the North 

 Pacific Exploring Expedition, under Commodore C. 

 Ringgold, and Capt. John Rodgers, U. S. JSF., from 

 1S53 to 1856. Collected hy Dr. Wm. Stimpson, 

 Naturalist to the Expedition. 



By a. E. Verrill. 



Part IV. Actinakia. With three Plates. 

 [Continued from p. 50.] 



The collection made by Dr. Stimpson, contains a large 

 number of species of Actinidm, preserved remarkably 

 well in alcohol. A large proportion of them are also 

 accompanied by descriptions of the colors and forms 

 while living, and many by colored drawings. Without 

 such descriptions and drawings it would be impossible to 

 describe most of the species in a manner sufficiently com- 

 plete to make them recognizable. These original drawings 

 have also furnished the figures reproduced upon the ac- 

 companying plates. 



It is, therefore, but right to say that the following 

 pages are quite as much the work of Dr. Stimpson as of 

 the present author. 



In most cases where there are neither notes nor draw- 

 ings made from the living specimens, I have thought it 

 best either to mention the species by a generic name only, 

 or to omit them altogether, rather than to burden the 

 science with indeterminable species, already far too nu- 

 merous in this interesting group. 



ORDER, ACTINARIA. 



Actinaria {pars) Dana, Zoophytes, 1846. 



Actinaria and Antipatharia Edwards and Haime, 1857. 



Actinaria Verrill, these Proceedings, Vol. IV, p. 147, April, 1865. 



This order was sufficiently characterized in Part I, of 

 this series, to serve the purposes of a brief synopsis like 

 the present. 



