204 BULLETIN 76, TJNITED STATES NATIONAL MUSEUM 



<istcrias dispar, 142 - L. camtschatica dispar forma dispar. 



obtecta. 111 - L. groenlandica forma groenlandica. 



Stenasterias macropora, 145 S. macropora. 



Stepha laslerias albula, 147 S. albula. 



i 'tenasierias cribraria, 148 Leplasterias groenlandica forma cribraria. 



Evasterias troschelii, 151 E. troschelii. 



troschelii var. rudis, 158 E. troschelii forma troschelii (part). 



- troschelii var. densa, 161 E. troschelii forma acanthostoma, young. 



— troschelii var. alvcolata, 162 £. troschelii forma alveolata (part). 



— troschelii var. sitbnodnsa, 163 #. troschelii forma troschelii (part). 



fceKt var. parvispina, 163 £. troschelii forma alveolata, young. 



— acanthostoma, 165 2?. troschelii forma acanthostoma. 



Orthasterias Columbiana, 168 O. koehleri. 



Inordinate, 173 0. koehleri forma biordinata. 



californica, 174 Astrometis californica. 



— korhlcri, 175 - 0. koehleri. 



— dawsoni, 175 Astrometis sertulifera (part). 



■nomi, 177 Leptasterias coei (part). 



Leplasterias polaris katheriuae (part). 



— forreri, 179 St ylaslerias forreri. 



forrtri forcipulata, 180 Do. 



leptolena, 182 Do. 



!/o o oli i,a, 184 Astrometis sertulifera (part). 



Distolasterias chelifera, 185 Lethasterias nanimensis chelifera. 



Parasterias albertensis, 187 Aslerias amurensis. 



Allasterias rathbuni, 189 Do. 



roDibuni nortonensis, 191 Do. 



.nala, 193 /ls/en'as amurensis forma anomala. 



Pycno podia hilianlhoides, 198 P. helianthoides . 



SUMMARY OF THE ASTERIINAE, NOTASTERIINAE, AND NEOMORPHASTERINAE 

 OF THE NORTHERN HEMISPHERE 55 



This summary, like that for the southern hemisphere, is not a revision but a 

 review. It will perhaps prove useful as a background for the foregoing detailed 

 account of the north Pacific fauna. To avoid repetition of matter, all genera and 

 species which have been treated in the main body of this work are followed by the 

 page on which fuller information may be found. 



Subfamily Asteriinae (Verrill, part) 



Genus APHANASTERIAS Fisher, p. 159 



I. APHANASTERIAS PYCNOPODIA Fisher, p. 160. 



Genus APHELASTERIAS Fisher 



Aphclasterias Fisher, Ann. and Mat;. Nat. Hist., ser. 9, vol. 12, p. 602. Type, Aslerias 

 japonica Bell. 



Diagnosis. — Diplacanlhid Asteriinae resembling 5-rayed Stephanasterias; abac- 

 tinal plates small, numerous, imbricated, with small papular areas, not longiserially 

 arranged but in somewhat irregular transverse series, on either side of a definite 

 carinal series; no actinal plates; abactinal spinelets small (surrounded by circlets of 



" UcDcra arrangol alphabetically; (or key, sec page 3. 



