REPORT ON THE ASTEROIDEA. 



603 



west of St. Thomas, Virgin Islands. Brisinga costata, off the east 

 coast of the United States of North America, between Cape Hatteras 

 and Nova Scotia. '-'Brisinga verticillata, off the coast of North 

 America, east of New Jersey. 



Southern Ocean : Two species between the parallels of 40° and 50° S. 



* Brisinga membranacea, between Marion Island and the Crozet 

 Islands, and west of the Crozet Islands. ^Brisinga discincta, south 

 of Australia. 



Pacific : One species between the parallels of 30° and 40° N. 



*Brisinga armillata, off the coast of Japan, south of Kawatsu. 



j3. Bathymetrical range: 100 to 2600 fathoms. 



Greatest range of one species: B rising a mediterranean 301 to 1454 fathoms 

 {fide Perrier). 



y. Nature of the Sea-bottom : Brisinga armillata and Brisinga verticillata on Blue 

 mud ; Brisinga coronata on Sandy clay ; Brisinga discincta on Red clay ; 

 Brisinga membranacea on Globigerina and Diatom ooze ; Brisinga cricophora 

 on Pteropod ooze. 



The species collected by the Challenger Expedition are indicated in the foregoing list 

 by an asterisk. 



Chorological Synopsis of the Species. 



1. Brisinga endecacnemos, Asbjornsen. 



Brisinga endecacnemos, Asbj0rnsen, 1856, Fauna Litt. Norvegiae, Andet Hefte, p. 95, tab. ix. figs. 1-15. 



Localities. — " Porcupine " Expedition : 

 *Off Valentia. Depth and conditions not stated. 



^Station 45, 1869. South-west of Cape Clear. Lat. 51° 1' 0" N., long. 11° 21' 0" \V. 

 Depth 458 fathoms. Bottom temperature 8°9 C. ; surface temperature 15° - 9 C. 



