196 EXPEDITIOX OF THE " Al.r.ATKOSS," l.S'.l'J-l'.lOO. 



They were in a very bad state of preservation, in consequence of which 

 the arrangement of the nniscle bands, so characteristic of this species, could 

 not be made out ; however, the simple hypophysis mouth, and the longitu- 

 dinal glands, make the identiiication reasonably certain. 



Cyclosalpa afflnis Chamisso. 



Stn. 31 A.A., Sept. 19, 1899, Lat. S. 12^ 20', Long. W. 144^ 15', surface 

 tenip. 80° ; taken in deepest part of channel separating the Marquesas from 

 the Paumotu, 7 r. m. Two specimens of the solitary generation. 



Stn. 2928, Jan. 23, 1889, off Southern California, Lat. N. 32M7', 

 Long. W. 118° 10', surface temp. 59°. Six specimens of the aggregate 

 generation. 



Salpa confoederata scutigera Forsk. Cut. 



This species seems to be common off the coast of California and very 

 variable. It is rare in the south seas. It was collected at four statious on 

 these voyages. 



Stn. 2928, Jan. 23, 1889, off Southern California, Lat. N. 32° 47' 30", 

 Long. W. 118° 10', surface temp. 59\ One specimen of the aggregate 

 generation. 



The test over the posterior part is nuich thickened and ridged, the ridges 

 covered with papillae. 



Stn. 2937, Feb. 4, 1889, off the coast of Southern California, Lat. N._ 

 3.3° 04' 30", Long. W. 117° 42', surface temp. 62°. A number of the aggre- . 

 gate generation of various sizes was collected. 



All have the test much thickened over the viscera. The larger spccimensj 

 have short processes scattered over this thickened portion, and a few overs 

 the soft anterior part. 



Stn. 294G, Feb. 6, 1889, off Southern California, Lat. N. 33° 58', Long. W. 

 J 19 30' 45", surface temp. 56.5°. A number of large chains. 



The specimens are in such poor condition that no internal characteristics 

 can be made out, but they seem to belong to this si)ecles. 



