80 Echin . xiv. echinoderma, [1904] 
(p. 14) ; Meissner (186). P. militaris ; Ludwig (164) p. 696 : 
Michailovskij (192) p. 168. P. pulvillus ; loc. cit. 
Pterasterinae , defined, with list of genera ; Delage (54) p. 99. 
Pycnopodia ; op. cit. p. 104. P. spuria ; Loeb (155, 158, 159). 
Pyrenaster ; Delage (54) p. 90. 
Pythonaster ; Delage (54) p. 99. 
Radiaster ; Delage (54) p. 100. 
Randasia ; Delage (54) p. 93. 
Retaster ; op. cit. p. 99. R. cribrosus ; Herdman (120) p. 145 : ? juv. ; 
Bell in op. cit. p. 150. R. gibber ; Meissner (186) p. 14. R. insignis ; 
Bell in Herdman (120) p. 150. R. verrucosus ; Meissner (186) 
p. 14. 
Rhegaster ; Delage (54) p. 94, fig. R. tumidus incl. R. murrayi \ 
Ostergren (202) : var. tuberculata ; Mighailovskij (192) p. 170. 
Rhipidaster ; Delage (54) p. 100. 
Rosaster ; Delage (54) p. 91. 
Rcaphaster ; Delage (54) p. 94. 
Rideriaster ; Delage (54) p. 88. 
Solaster ; op. cit. p. 100. R. ajjinis syn. of R. papposus ; Ostergren 
(202). R. endeca ; Michailovskij (192) p. 168 : descr., range ; Clark 
(38) p. 556, pis. iii, iv. R. glacialis is 7-rayed R. endeca ; Ostergren 
(202). R. papposus ; Mar. Biol. Ass. (184) p. 208) : var. squamata 
is distinct sp. ; Ostergren (202). . R. regularis ; Meissner (186) 
p. 17. R. syrtensis is valid sp. ; Ostergren (202). 
Rolasterinae, defined, as Fam. with list of genera, also as Subfam. ; 
Delage (54) p. 100. 
iRphaerastcr, history, R. molassicus n. sp., Helvetian, Suabia ; Sohuetze. 
(251) p. 155, pi. ii. R. punctatus ; Siemiradzki (255) p. 139. 
t Rphaerites vide Rphaeraster. 
Rtegnaster ; Delage (54) p. 96. 
Rtellaster ; op. cit. p. 91. R. incei ; Herdman (120) p. 143. 
fRtenaster salteri ; Ami (7) p. 61. 
Rtephanaster ; Delage (54) p. 90. 
Rtichaster, descr. ; op. cit. p. 102. R. albulus\ Michailovskij (192) 
p. 166. R. arcticus, syn. of R. roseus ; Ostergren (202). R. aurantiacus ; 
Meissner (186) p. 12. R. nutria ;; loc. cit. ; Ludwig (164) p. 696. R. 
roseus ; Kiaer (140). 
Rtichaster inae, defined, with list of genera ; Delage (54) p. 102. 
Rtyracaster ; Delage (54) p. 89. 
fTaeniaster (?) fournieri n. sp., Visean, Belgium, placed in Oph. y but i& 
perhaps Ast. [ Taeniaster is an Ordovician Asteroid] ; Fraipont (85) 
p. 7, pi. i. 
Tarsaster ; Delage (54) p. 103. 
Thoracaster ; Delage (54) p. 89. 
Tremaster ; Delage (54) p. 96. 
Tylaster ; Delage (54) p. 94. 
Uniophora ; Delage (54) p. 103. 
Valvaster\ Delage (54) p. 102. 
V alvasterinae ; Delage (54) p. 102. 
Zoroaster , descr. ; Delage (54) p. 102, fig. 
Zoroasterinae , defined, with list of genera ; loc. cit. 
(E.) — OPHIUROIDEA. 
Ophiuridia divided into Subclass 1. Palophiuridiae with Orders Lys- 
ophiurida & Rtreptophiurida , 2. Colophiuridiae with Orders Zyg- 
ophiurida & Cladophiurida ; Delage (54). 
Amphilepis ; op. cit. p. 153. A. mobilis n. sp., Timor & Java sea, 216- 
