254 THE VOYAGE OF H.M.S. CHALLENGER. 



Station 271, September 6, 1875 ; lat. 0° 33' S., long. 151° 34' W.; depth, 2425 

 fathoms ; bottom temperature, 1°'0 C. ; bottom, globigerina ooze. 

 Culeolus moseleyi. 



Station 299, December 14, 1875; lat. 33° 31' S., long. 74° 43' W.; depth, 

 21 GO fathoms ; bottom temperature, 1°"1 C; bottom, grey mud. 

 Corynascidia suhmi. 



Between Valparaiso and the Falkland Islands the following Tunicata were dredged : — 

 Station 311, January 11, 187G ; hit, 52° 50' S., long. 73° 53' W.; depth, 245 

 fathoms ; bottom temperature, 7°'7 C. ; bottom, mud. 

 Ascidia tenera. 

 Station 312, January 13, 1876 ; lat, 53° 38' S., long. 70° 5G' W.; depth, 15 to 

 10 fathoms ; bottom, mud. 

 Boltenia legumen. 



Station 313, January 20, 1876; lat, 52° 20' S., long., 68° 0'W.; depth, 55 

 fathoms ; bottom temperature, 8° - 8 C; bottom, sand. 

 Molgula gigantea. 

 Ascidia meridionalis. 



Between the Falkland Islands and Buenos Ayres, South America, the following 

 Tunicata were collected : — 



Station 315, January 26, 27, 28, 1876 ; lat. 51° 40' S., long. 57° 50' W.; depth, 

 5 to 1 2 fathoms ; bottom, sand and gravel. 

 Molgula grcga ria. 



horrida. 

 Boltenia legumen. 

 Station 316, February 3, 1876 ; lat, 51° 32' S., long. 58° 6' W. ; depth, 4 to 5 

 fathoms ; bottom, mud. 

 Boltenia legumen. 



Station 320, February 14, 1876 ; lat. 37° 17' S., long. 53° 52' W. (off the coast 

 of Buenos Ayres) ; depth, 600 fathoms ; bottom temperature, 2° - 7 C. ; 

 bottom, hard ground. 



Molgida pyriformis. 

 Styela flava. 

 oblonga. 

 glans. 

 Ascidia meridionalis. 



tenera. 

 Ilypobythius moseleyi. 



