Littoral Ascidians Collected at 

 Laguna Beach 



The specimens reported upon are from a collection made by P. A. 

 Lichti during the summer of 1915, and from a small collection 

 brought in during the summer of 1916. The determinations of all 

 but the fifth were kindly made by Prof. W. E. Ritter. 



Ascidia calif oni'nu Ritter and Korsythe 

 These simple forms were found quite abundantly under stones 

 and in kelp holdfests. The form of the body was determined largely 

 by the position the animal took on the stone or seaweed. 



Slyelii btiniliarli Ritter and Korsythe 

 The specimens obtained were young, simple, of a redish-brown 

 color and about 4 mm. high. They were found under stones at 

 low tide but not as commonly as some others. 



Styld moutercyfusts Dall 

 A single specimen of this large, simple species was taken just off 

 shore. It was slender at the base, expanded near the openings and 

 of a redish-brown color. 



Eiiherdmau'ui cUivifoDuh Ritter 

 This slender species was often found in clusters under stones. 

 They were about 2 mm. in diameter and 10-20 mm. long, sometimes 

 free from sanci, at other times co\ered with sand grains. 



Goodsiriii dura Ritter 

 Bright red or orange masses of these were often found in bits of 

 seaweed from deeper water. The individuals were 2 to 3 nmi. 

 across and often closely massed on the seaweed or other support. 



Eudislonia d'uiphoncs Ritter and Korsythe 

 This was the common compound species found closely attacheil to 

 the lower sides of stones. It was often quite e\tensi\e but not thick 

 or colored. 



Eiidisldiiiii p.uimiiiii Ritter and l-orsythc 

 (jreat masses of this tough, pinkish or slightly colored form 

 were found undei" rock Ictiges. It resembles one of the sponges m 



