I^achdruch verboten. 

 Uebersetzungsrecht vorbehalten . 



The Actiniae of the Plate Collection. 

 By 



Prof. Dr. J. Playfair Mc Murrich, 



Ann Arbor, Michigan, U. S. A. 



With plates 14—19 and 5 fig. in the text. 



Our present knowledg-e of the Actinian faiina of the coast of 

 Chili is due almost entirely to expeditions which have toiiched at 

 varions points in the course of prolonged voyages and while the sum 

 total of the resnlts so obtained is by no means inconsiderable, the 

 individual results of each expedition have, as a rnle, been compar- 

 atively slight. The iirst expedition to yield actinological results was 

 that of the "Coquille", the Actinians obtained having- been described 

 by Lesson in 1830. Slightly later, in 1835, J. F. Brandt described 

 a Single species from the neighbonrhood of Valparaiso and in 1846 

 the results of the U. S. Exploring Expedition, described by Dana, 

 added materially to the number of known forms. In 1854 Gay pub- 

 lished descriptions of a number of forms from Chiloe and in 1857 

 MiLNE Edwards described a Single form under the name of CysUadis 

 eijdouxi. In all these cases the descriptions lack much of what is 

 necessary for the correct determination of the position of the various 

 forms in our modern System Classification, and only in the public- 

 ations of Lesson and Dana are the descriptions accompanied by 

 figures. 



More recent contributions have been made by Verrill, who 

 described three forms from the Peruvian Coast in 1869, by Studer, 



Zool. Jahrb., Supplement. Bd. VL (Fauna Chilensis. Bd. IIL) Heft 2. 15 



