THE COAST OF CALIFORNIA. 135 



low forms of life, Plumularidse, Cirripeds, small Actinians 

 and Tunicates. 



The body is elongated, club-shaped, enlarged at the dis- 

 tal extremity and tapering to its attachment. Throughout 

 its length it is furrowed on its outer surface by parallel 

 creases or longitudinal indentations which impart a char- 

 acteristic appearance to the external surface of the body. 

 The color is a bright red, becoming darker along the stalk. 

 The outer tunic is opaque. 



The excurrent and incurrent openings into the tunic are 

 terminal, arranged side by side on the upper extremity of 

 the body. 



Associated with Clavellinopsis many specimens of a 

 beautiful Clavellina were also found. 



BKYOZOA. 



ASCORHIZA OCCIDENTALS Fewkes. 



This strange Bryozoan was dredged in twenty fathoms 

 from the channel between Santa Barbara and Santa Cruz. 



The body consists of an ovate capitulum 1 mounted on a 

 slender, flexible, sensitive stalk. When this stem was irri- 

 tated it was observed to sway slowly backward and forward, 

 and even to quickly double itself forming a coil. 



The whole animal is an inch in height, and its color is a 



two excursions. A large Salpa, resembling in size and shape S. maxima of the 

 Mediterranean, was collected under the lofty cliffs of Santa Cruz Island. The sol- 

 itary form of this Salpa is over four inches long. 



1 Mr. R. Kirkpatrick, to whom I am indebted for many valuable suggestions in 

 regard to the structure of Ascorhiza has suggested the term " capitulum" to des- 

 ignate the compound zocecium of this genus. 



