THE PELAGIC TUNICATA. 197 



Stn. 15 A.A., Sept. 8, 1899, Lat. N. 4^ 35', Long. W. 136° 54', surface temp. 

 79^ A single young specimen of the solitary generation was collected 

 on the surface. 



Salpa democratica-mucronata Forsk. 



This species was taken at two stations, both off the coast of Southern 

 California. 



Stn. 2928, Jan. 23, 1889, Lat. N. 32' 47' 30", Long. W. 118' 10', surface 

 temp. 59\ A number of both generations was collected. Tlie solitary 

 generation has very long, slender processes at the posterior end. In some cases 

 these processes are almost as long as the body. In this particular they ap- 

 proach Traustedt's y^w flag ellif era, but there is no other resemblance between 

 the two. 



Stn. 2937, Feb. 4, 1889, Lat. N. 33' 04' 30", Long. W. 117^ 42', surface 

 temp. 62'. Both generations were collected, exactly similar to tliose taken 

 at station 2928. 



Salpa fusiformis-runcinata Cuv.-Cham. 



This is the most common species in the collections. Large numbers of 

 both generations were taken at different stations from the coast of Alaska 

 to the South Pacific. 



Stn. 2869, Sept. 21, 1888, Lat. N. 47' 38', Long. W. 124' 39', surface 

 temp. 60'. Between Sitka and the Columbia River. Specimens in a very 

 poor state of preservation. 



July 12, 1887-88, Beaver Harbor (no such date given in printed records), 

 British Columbia. There are a number of both generations bearing this 

 label. 



The test is somewhat thickened aver the posterior part and provided 

 with ridges. 



Stn. "Sur. 35," 1887-88. 



Stn. "Snr. SH/^ 1887-88. 



1 Mr. C. H. Townsend -writes us as follows concerning tliese stations: "I think surface tow-net 

 station No. .36 mu.st certainlv have been made immediately north of the Galapagos Islands. The sur- 

 face tow-net records of that voyage were not printed in the ' Albatross ' report for that year. ' 



