192 BULLETIN 76, UNITED STATES NATIONAL MUSEUM 



Subfamily Priamasterinae Fisher 



GEPHYREASTEB SWIFTI (Fisher), pt. 1. p. 175. 



From the end of the Aleutian Chain to Washington; 34 to 188 fathoms; rocks. 

 Family GONIASTERIDAE Forbes 

 Subfamily Pseudarchasterinae Sladen 



PSEUDARCHASTER PARELH (DUben and Koren). pt. 1, p. 180. 



Bering Sea to Kodiak Island and Sea of Japan; 70 to 351 fathoms; sand, mud, 

 gravel. Also North Atlantic. 



PSEUDARCHASTER PAR EMI ALASCENSIS Fisher, pt. 1, p. 185. 



Oregon to southern Alaska, 68 to 1,064 fathoms; rocks, sand, mud. 



PSEUDARCHASTER PUSILLUS Fisher, pt. I, p. 187. 



North of Monterey Bay, Calif., to San Cristobal Bay, Lower California; 54 to 

 382 fathoms; mud, sand, sand and pebbles. 



PSEUDARCHASTER DISSONUS Fisher, pt. 1. p. 192. 



Bering Sea to Oregon; 784 to 1,064 fathoms; green mud. 

 Subfamily Goniasterinae Verrill 



MEDIASTER AEQUAMS Stimpson, pt. 1, p. 198. 



Alaska Peninsula (Chignik Bay) south to northern Lower California; 9 to 

 160 fathoms; rocks and shells, hard sand, gravel, clay, pebbles, green mud. 



MEDIASTER TENELLUS Fisher, pt. 1, p. 202. 



Southern California, 291 to 510 fathoms; mud, rocks. 

 M. transfuga Ludwig is probably a form of this species. 



CERAMASTER PATAGONICUS (Sladen), pt. 1, p. 214. 



Ceramaster granulans (Retzius), Verrill, 1914; p. 290. 



Southern Alaska to the southern part of Bering Sea; 41 to 134 fathoms; sand, 

 gravel. Also vicinity of Cape Horn; a specimen from Carmen Island, Gulf of Cali- 

 fornia; one from off Cape San Lucas, 491 fathoms (Clark, 1913, p. 193). 



Verrill's citation of granularis is based on the record of Whiteaves, Straits of 

 Georgia, 40 fathoms. Whatever west coast material he may have seen was too 

 imperfect to figure and hence not suitable for critical study. A record by Ives from 

 Marmot Island, Alaska, is equally open to question, since the same author reported 

 granularis from Monterey, Calif., where it certainly does not occur (probably 

 Mediaster aequalis). 



Verrill's figures are all from Atlantic material. 



CERAMASTER JAPONICUS (Sladen), pt. 1, p. 206. 



Japan to southern Bering Sea, thence south along the American coast to Oregon; 

 106 to 786 fathoms; green mud, gray sand. 



CERAMASTER I.EPTOCERAMUS (Fisher), pt. I, p. 210. 



From Point Conception, Calif., to San Cristobal Bay, Lower California; 284 to 

 594 fathoms; green mud, sand. 



CERAMASTER CLARKI Fisher, pt. I. p. 217. 



Southern Bering Sea to southern California; 334 to 600 fathoms; greenish brown 

 sand. 



