TROPICAL PLANKTON. 287 
has reported it from between the Crozet Islands and the 
south of Africa, and from the Atlantic Ocean. It has also 
been reported from the Pacific, Mediterranean, &c. The 
Bay of Bengal and Red Sea habitats now reported are 
additions to its known range. 
Oncea mediterranea, Claus. 
1863. <Antaria mediterranea, Claus, Die. Freileb. Cop., p. 159, 
Pl. XXX, figs. 1—7. 
This species occurred in fair abundance at 8 Wyse and 
4 Herdman stations, in the Indian Ocean, Bay of Bengal, 
and Mediterranean. It has a wide range north and south, 
having been reported from Spitzbergen, British Isles, 
Mediterranean, and Atlantic and Pacific Oceans. The 
Indian Ocean and Bay of Bengal are additions to its 
known range. 
Oncea contfera, Giesbrecht. 
1891. Oncea conifera, Giesbrecht, Atti Acad. Lincei Roma, vol. 
NEES Sem: 
At only one station, No. 8, Wyse collection, was this 
species found, between Madagascar and the African main- 
land. The Mediterranean, Pacific Ocean, and Gulf of St. 
Lawrence appear to be the only previous recorded habitats. 
Oncea minuta, Giesbrecht. 
1892. Onceea minuta, Giesbrecht, F. and Fl. Neapel, vol. XIX., p. 590. 
As its name aptly denotes, this species is very small. 
lt occurs in both collections, Wyse, 9, 11, 12, 13, 14, 18, 
22, Herdman, 8, 14, the location being African east coast, 
Bay of Bengal, Red Sea, and Mediterranean, the last 
being Giesbrecht’s only previously recorded habitat. 
Sapphirina salpae, Claus. 
1859. Sapphirina saipae, Claus, Arch. Anat., Physiol., Wiss. Med., 
Jahrg., pp. 269—274. 
This species was found at 2 Wyse stations, 11 and 13 
