64 
THE VOYAGE OF H.M.S. CHALLENGER. 
1852. Cleodora lanceolata, Souleyet, Voyage de la Bonite, Zoologie, t. iL p. 179, pi. vi. 
figs. 17-25. 
1852. Cleodora exacuta, Gould, The Mollusca and Shells of the U.S. Exploring Expedition, 
p. 488, pi. li. fig. 605. 
1877. Cleodora Idbiata, Sowerby, in Reeve, Conchologia iconica, t. xx., Pteropoda, fig. 26. 
1880. Cleodora martensii, Pfeifer, Die Pteropoden des Hamburger Museums, Abhandl. d. 
Naturw. Ver. Hamburg, Bd. vii. p. 95, pi. vii. fig. 16. 
For figures and description, see Souleyet ( loc . cit.). 
Habitat. — This species has a cosmopolitan distribution, and exhibits noteworthy 
variations in form. 
The most northerly locality is Spitzbergen (British Museum), then Bergen, Iceland, 
Davis Strait, the whole of the Atlantic towards both continents and down to 40° S., and 
all the Mediterranean. 
Indian Ocean ; from the Gulf of Bengal to 40° S. (Boas), off the coasts of Africa, 
Natal, Zanzibar (Pfeffer), and as far as Australia, Swan River (British Museum). 
Pacific Ocean ; western portion, Japan, Gulf of Yedo (“ Galathea” Expedition), Yellow 
Sea (British Museum), China Sea (Boas), Malay Archipelago, Eastern Australia to 40° 
S. (Pfeffer) ; North-east Pacific, 44° N., 154° W. (Gould, as “ Cleodora exacuta ”) ; 
South-east Pacific, 27° 11' S., 88° 52' W. (“ Galathea” Expedition). 
Challenger Specimens. — I. Living. 
Station 62, June, 18, 1873 ; Bermuda to Azores ; lat. 35° 7' N., long. 52° 32' W. 
Station 63, June 19, 1873 ; Bermuda to Azores ; lat. 35° 29' N., long. 50° 53' W. 
Station 142, December 18, 1873 ; Cape of Good Hope to parallel of 46° S.; 
lat. 35° 4' S., long. 18° 37' E. 
Near Station 160, March 15, 1874 ; off Melbourne ; lat. 39° 45' S., long. 140° 40' E. 
Station 175, August 12, 1874 ; Fiji to Raine Island ; lat. 19° 2' S., long. 177° 10' E. 
Station 230, April 5, 1875 ; Admiralty Islands to Yokohama; lat. 26° 29' N., 
long. 137° 57' E. 
Station 251, July 10, 1875; Yokohama to Sandwich Islands; lat. 37° 37' N., 
long. 163° 26' W. 
Station 254, July 17, 1875 ; Yokohama to Sandwich Islands; lat. 35° 13' N., 
long. 154° 43' W. 
Station 256, July 21, 1875; Yokohama to Sandwich Islands; lat. 30° 22' N., 
long. 154° 56' W. 
Station 293, November 1, 1875 ; Tahiti to Valparaiso ; lat. 39° 4' S., long. 105° 5' W. 
Station 332, March 10, 1876 ; Rio de Janeiro to Tristan da Cunha; lat. 37° 29' S., 
long. 27° 31' W. 
Between Stations 332 and 333, April 28, 1876 ; off St. Vincent (Cape Verde) ; 
lat. 17° 47' N., long. 28° 28' W. 
On May 12, 1876 ; off the Azores ; lat. 42° 52' N., long. 28° 54' W. 
