126 NEW INVERTEBRATA FROM 



mseous. When expanded, their tips extend about double 

 the diameter of the body. Radial lines of the septa, on 

 the perioral region, appear as silvery, double lines, ex- 

 tending from the mouth to the tentacles. Small simple 

 mouth, with slightly raised perioral prominence. Mouth 

 has the form of a longitudinal slit. Body adherent, ten- 

 tacles wholly retractile. Sphincter muscle strong. The 

 genus lives in colonies covering rocks which are bare at 

 low tide. Whole colonies are hidden by coating of small 

 shells and gravel, and seem to retain considerable water 

 from one tide to another in their body walls. 



Found abundantly on the rocks at Point Castillo. Mag- 

 nificent specimens of this Bunodes, ten inches in diameter, 

 were found on the island of Santa Cruz. The tentacles 

 are a beautiful green and yellow color. In these speci- 

 mens the tubercles situated about the ring of tentacles 

 formed a thickly crowded zone on the body, and have a 

 dull yellowish or brownish color. Like the specimens 

 from the rocks of Punta del Castillo these Bunodes like- 

 wise collect foreign bodies upon the knobs, but in places 

 where there is little sand these aggregations are for the 

 most part pieces of shells and fragments of seaweeds. 



Large numbers of the young of all sizes occur at the 

 bases of the older specimens, and evidences of fission can 

 be readily seen. That the colony is formed in that way .and 

 by gemmation from the base seems to be doubtless true. 1 



1 M. Nussbaum gives a very short account of fission in an unknown Actinia from 

 the coast of California. This may possibly be the same genus as that which I 

 call Bunodes, but there is nothing to prove that such is the case as his notice is so 

 imperfect that the animal studied cannot be identified. I have often taken Bu- 

 nodes with young clustered at the base, and the form of thecolony would indicate 

 that this mode of reproduction is very common. (See Nussbaum, Vorlauflger 

 Bericht iiber die Ergebnisse einer mit Unterstiitzung der Koniglichen Akademie 

 ausgeiiilirten Reise nach Californien. Sitz. der Eon. Akad. der Wiss. zu Berlin, 

 1887, Nos, L, LI.) 



