Notes on Flat Worms at Laguna Beach 



\V. L. GROW, DARSIE L. DARSIE 



We have not had any of these determined as yet. We should be glad to collect 

 specimens for anyone who would determine them for us. 



One or two kinds of tricladids are found under stones. Most of these are brown 

 or gray, some are pink and some almost red. 



At least one species of polycladid is found commonly under stones. They are 

 nearly circular in outline and may possibly belong to the genus Leptoplana. 



Another species nearly circular in outline was collected by Mr. Grow in 1916. 

 Others were collected in 1917. They were black with narrow longitudinal red lines. 



A large grey species was collected by Mr. Darsie in 1917. Two were obtained 

 in a tide pool near Boat Canon. They swam by means of rapid undulating move- 

 ments of the frilled edges of the body. 



(Contribution from the Zoological Department of Pomona College.) 



BRANCHIOSTOMA CALIFORNIENSE GILL 



Specimens of Branchiostoma have been dredged at Laguna Beach for the past 

 three years. Prof. A. M. Bean first brought them in from just beyond the Laboratory 

 in from 10 to 15 fathoms of water. Almost every haul near this place in the coarse 



:to»a«8-w»-ii ,r,., . 



rough sand and shell debris which is abundant there. The drawing is by Charlotte 

 fohnson. 



