284 J- Playfair Mc Mürrich, 



conspicuous. Only tlie mesenteries of the flrst cycle, wliich included 

 two pairs of directives, were perfect, no reproductive Organs were 

 observed in the individuals examined. 



This species seems to be quite distinct form C. pedinatus (Hert.). 

 differing in size, in the development of the tubercles, in the form of 

 the sphincter and of the muscle pennon, and since this is the onl}' 

 form with which it seems possibly identical it maj well be regarded 

 as a distinct species. 



Family Cribrinidae Mc Murrich, 1901. 



Bwiodidae AuCTT. 

 Tealidae Hertwig, 1882. 

 Bunodactis Verrill, 1899. 



Actiniae with an adherent base; the colulun iisually more or 

 less verrncose and freqnently with acrorhagi at the margin, these, 

 however, never being ramose or frondose; sphincter endodermal, 

 circiimscribed ; usually more than the first cycle of mesenteries 

 perfect; no acontia. 



Genus Cribrina Ehrenberg, 1834. 



Bwiodes Gosse, 1855. 

 Bunodactis Verrill, 1899. 



Cribrinidae without true acrorhagi; usually with numerous 

 perfect mesenteries; sphincter strong; ectodermal musculature of 

 the disc and tentacles not imbedded in the mesogloea; column wall 

 destitute of an epidermal covering and provided with Verrucae 

 arranged more or less distinctly in longitudinal rows; tentacles 

 simple. 



22. Cribi*ina conica n. sp. 



No. 87. Juan Fernandez. 8 specimens. 



The form of the majority of the individuals of this species is 

 shown in Fig. 75. From a broad flat base the column diminishes 

 gradually toward the margin, so that it has the form of a truncated 

 cone. Its surface is marked by numerous circular furrows and in 

 the larger individuals, when viewed through a lens, has a finely 

 reticulate appearance. No Verrucae can, however, be distinguished 

 on superficial inspection in these specimens, although microscopical 

 preparations show that they are present, but in some of the smaller 



