REPORT ON THE TUNICATA. 73 



Prince Edward Island, in the Southern Ocean; taken at night; surf. temp. 41°'5 ; one 

 specimen, probably of the solitary form of this species (only a fragment, in bad condition). 



(2.) February 2, 1874 ; Station 150, in the Southern Ocean ; lat. 52° 4' 0" S., long. 

 71° 22' 0" E. ; surf. temp. 37°"5 ; one specimen of the solitary form (l"5 cm. in length). 



(3.) February 3, 1874 ; in the Southern Ocean, near Heard Island ; lat. 52° 20' 0" S., 

 long. 72° 14'0"E. ; surf. temp. 38°; one specimen, probably of the solitary form of 

 this species (in bad condition). 



(4.) August 25, 1874; Station 181, in the West Pacific; lat. 13° 50' 0" S., long. 

 151° 49' 0" E. ; surf. temp. 80°; six specimens, probably of the solitary form of this 

 species (in very bad condition ; average length about 2 cm. ). 



(5.) March 16, 1875; Station 222, in the West Pacific, north of the Admiralty 

 Islands ; sur&ce ; lat. 2° 15' 0" N., long. 146° 16' 0" E. ; surf. temp. 82°'8 ; one specimen 

 of the solitary form (rather large and opaque). 



(6.) April 5, 1875; Station 230, Pacific; lat. 26° 29' 0" N., long. 137° 57' 0" E. ; 

 surf. temp. 68°"5 ; one specimen, possibly of this species, in bad condition (in a tube 

 along with a young Pyrosoma). 



(7.) November 5, 1875; Station 295, South Pacific; surface, at night; lat. 38° 7' 

 O" S., long. 94° 4' 0" W. ; surf. temp. 58°"5 ; five specimens of the solitary form (small), 

 and five specimens of the aggregated form (small, and in bad condition). 



(8.) April 26, 1876 ; North Atlantic, off the West Coast of Africa ; lat. 16° 49' O" N., 

 long. 25° 14' O" W. ; surf. temp. 73°'2 ; four specimens of the solitary form (largest 4 

 cm. in length and 1 cm. in breadth), and many specimens of the aggregated form ('small, 

 average length 5 mm.). In the same bottle is part of the test of a large Salpa, species 

 indeterminable. 



(9.) April 27, 1876 ; North Atlantic; lat. 17° 18' 0" N., long. 26° 32' 0" W. ; surf, 

 temp. 73°'5 ; about fifty specimens of the solitary form (mostly in bad condition), the 

 largest is 4 '5 cm. in length ; and one specimen of the aggregated form (6 mm. in length). 



(10.) April 28, 1876 ; North Atlantic ; lat. 17' 47' O" N., long. 28° 28' 0" W., surf, 

 temp. 73°"5 ; one specimen of the solitary form (3'5 cm. in length), and two specimens 

 of the aggregated form (small, 5 mm. in length). 



(11.) AiM-il 29, 1876 ; North Atlantic ; lat 18° 8' O" N., long. 30° 5' 0" W. ; surface, 

 at night ; surf temp. 73°7 ; one specimen of the solitary form (2'2 cm. in length), and 

 twenty-four specimens of the aggregated form (average 6 mm. in length). 



The largest specimen of the solitary form of this species in the collection, is one of 

 those obtained in the North Atlantic on April 27, 1876. It measures 4-5 cm. in length 

 and 1 cm. in breadth. The average size of the other specimens obtained at the same 

 locality is 1 "o cm. in length and 4 mm. in breadth. The width and the distance apart 

 of the muscle bands of the mantle differ considerably in these specimens. Smaller 

 muscle bands are visible in some of the specimens {i.e. those collected in the North 



(ZOOL. CHALL. EXP. PART LXXVI. — 1888.) Gggg 10 



