1294 THE VOYAGE OF H.M.S. CHALLENGER. 



little shorter than those of the first, and the third than those of the second, the 

 armature nearly as in Vibilia propinqua. 



Telson triangularly rounded, not quite half the length of the peduncles of the third 

 uropods. 



Length. — One-third of an inch. 



Locality. — "Between Kerguelen and Heard I., February 3, 1874, surface"; lat. 

 52° 20' S., long. 72° 14' E. One specimen. 



Remarks.^ — There seems to be a close resemblance between this form and Vibilia 

 gracilenta, Bovallius, from the Atlantic, but in that species the hinder comers of the 

 coalesced segments of the pleon are " strongly produced backwards," and the peduncles 

 of the third uropods are " linear," neither of which characters suits the Challenger 

 specimen. 



The following list shows the localities at which specimens of the genus Vibilia 

 were obtained, arranged in sequence from the North Atlantic round to the North 

 Pacific. 



1. "June 18-19, 1873, surface"; between Stations 62 and 63, lat. 35° T and 

 35° 29' N., long. 52° 32' and 50° 53' W. One specimen. 



2. "Between Bermuda and Azores, surface"; lat. 32° 29' and 39° 0' N, lono-. 

 68° 48' and 27° 0' W. Two specimens. 



3. "April 27, 1876, North Atlantic, surface"; between Stations 352 and 353, 

 lat. 10° 55' and 26° 21' N, long. 17° 46' and 33° 37' W. Three specimens. 



4. "April 13-14, 1876, off Africa, surface"; near Station 352, lat. 10° 55' N, 

 long. 17° 46' W. One specimen. 



5. " October 5, 1873, South Atlantic, surface, night " ; between Stations 130 and 131, 

 lat. 26° 15' and 29° 35' S., long. 32° 56' and 28° 9' W. One specimen ( Vibilia milnei). 



6. "Vibilia, South Atlantic, November 10, 1873"; Station 140, lat. 35° 0' S., 

 long. 17° 57' E. One specimen, mounted in Canada balsam. 



7. "March 10, 1876, South Atlantic, surface"; Station 332, lat. 37° 29' S., 

 long. 27° 31' "VV. Six specimens. 



8. "March 9, 1876, South Atlantic, surface"; Station 331, lat. 37° 47' S., 

 long. 30° 20' W. Five specimens. 



9. "February 2, 1874, Antarctic, surface"; Station 150, lat. 52° 4' S., long. 

 71° 22' E. One specimen (Vibilia antarctica). 



10. "Between Kerguelen and Heard I., February 3, 1874, surface"; near Station 

 150. One specimen. 



11. " March 9-10, 1874, south of Australia, surface, lat. 48° 18' S., long. 130° 4'E." ; 

 between Stations 158 and 159. Three specimens (Vibilia australis). 



