OF THE KERGUELEN REGION OF THE GREAT SOUTHERN OCEAN. 373 



Holothuria thonisoni — Western North Pacific, 1875 and 2900 fathoms. 



Kolga nana — Western North Atlantic, 1250 fathoms. 



Lwtmogone wyville-tliomsoni — Eastern South Pacific, 1375 fathoms, and off Japan, 345 fathoms. 



Pelagonemertes rollestoni — Near Japan, 420 to 775 fathoms. 



Eurycope fragilis — Western North Pacific, 1875 fathoms. 



Boreomysis scyplwps — North Atlantic and Arctic, depth (?). 



Gnathophausia gigas — Mid North Atlantic, 2200 fathoms. 



Munidopsis antonii — Eastern South Pacific, 1375 fathoms; North-West Africa, 2187 fathoms. 



„ subsquamosa — Eastern South Pacific and Western North Pacific, 1450 and 1875 fathoms. 



Trochus (Margarita) infundibulum — Western North Atlantic (Bermuda), 1075 fathoms. 

 Idmonea marionensis — Near Marion and Heard Is., and off R. Plate, 50 to 600 fathoms ; Mediterranean and 



Australia. 

 Halosaurus macrochir — Eastern North Atlantic (Portugal), 1090 fathoms. 

 Stomias boa — Mediterranean and South Pacific, depth (?). 

 Synaphobranchus bathybius — Western North Pacific, 1875 and 2050 fathoms. 



LIST le. 



In the third place we give a list of the 12 species which are known to occur 

 in regions both south of and within the tropics, but which have not hitherto been 

 recorded from regions north of the tropic of Cancer. From the distributional notes 

 accompanying each species it will be observed that 5 of the species are true deep-sea 

 forms, being unknown from depths less than 1000 fathoms ; the other 7 species, though 

 found in depths over 1000 fathoms in the region represented by these eight Stations, 

 occur outside this region in depths less than 1000 fathoms, and 1 of these species is 

 recorded from shallow water under 150 fathoms. 



Corallimorphus rigidus — Eastern South Pacific and Western tropical Pacific, 2160 and 1425 fathoms. 



Atolla mjvillei — Western South Atlantic, 2040 fathoms ; Indian Ocean, 240 to 405 fathoms. 



Hyocrinus bethellianus — Mid tropical Atlantic and Western tropical Pacific, 1850 and 2325 fathoms. 



Hymenaster nobilis — Indian Ocean, 1748 fathoms. 



Ophiacantha cosmica — Mid South Atlantic and Eastern South Pacific, 1000 to 2225 fathoms; Western tropical 



Atlantic, 350 fathoms; Western tropical Pacific, 800 and 1070 fathoms. 

 Goniocidaris canaliculata — Near Heard, Kerguelen, and Falkland Islands ; Natal, Zanzibar, Australia, shore to 



1975 fathoms. 

 Macrocypris similis — Magellan Strait, 165 fathoms; tropical Atlantic near Brazil and Ascension, 675 and 



420 fathoms. 

 Serolis antardica — Western tropical Atlantic near Brazilian coast, 400 fathoms. 

 Benthewphausia amblyops — Mid South Atlantic and mid tropical Atlantic, 1000 and 1500 fathoms. 

 Salicornaria magnifica — Western South Atlantic and mid tropical Atlantic, 1 900 fathoms, and Western 



tropical Atlantic, 350 fathoms. 

 Culeolus recumbens — Indian Ocean, 1997 fathoms. 

 Melamphaes crassiceps — Mid tropical Atlantic and Western tropical Pacific, 1500 and 1100 fathoms, and 



Western tropical Atlantic, 675 fathoms. 



LIST If. 



In the fourth place we give a list of the 17 widely-distributed species which 

 are known to occur both in tropical and each of the extra-tropical regions. From 



