REPORT ON THE ASTKEOIDEA.' 



541 



Pacific : Seven species between the parallels of 55" N. and 55° S. 



* Cribrella ornata, off New Zealand and Campbell Island, and 

 extending to the Cape of Good Hope. *Cribrella compacta, off 

 New Zealand. *Cribrella sufflata, north of the Kermadec Islands. 

 Cribrella densispina from the Corean Strait, off the west coast of 

 Niphon. Cribrella l&viuscula from Puget Sound and off the coast 

 of Oregon. Cribrella minuta, off the coast of Ecuador. * Cribrella 

 obesa, off the entrance to Smyth Channel in the Strait of Magellan, 

 and extending to the Falkland Islands. 

 /3. Bathymetrical range: Shallow water to 1350 fathoms. 



Greatest range of one species : Cribrella oculata, shallow water to 1350 fathoms. 

 y. Nature of the Sea-bottom : Cribrella oculata is found on hard ground, on clay 

 (sandy, Blue, and Biloculina), and Blue mud ; Cribrella antillarum on hard 

 ground, fine sand, and mud ; Cribrella sexradiata on broken shells and corals ; 

 Cribrella obesa on sand, gravel, and Blue mud ; Cribrella prsestans and Cri- 

 brella simjolex on hard ground (gravel, shells), the latter also on Volcanic sand. 

 Cribrella simplex, var. granulosa, and Cribrella sufflata, on Volcanic mud. 

 The species collected by the Challenger Expedition are indicated by an asterisk in the 



foregoing list. 



Chorologieal Synopsis of the Species. 



1 In the list of stations of the "Blake" Expedition given by Perrier (Nouv. Archives Mus. Hist. Nat., 

 2e Serie, 1884, t. vi. pp. 173, 180), the depths are given as 120 and 321 fathoms ; on p. 209 (op. cit.) the same 

 two stations are given as 150 and 101 fathoms. 



