CitINOIDKA. (IV, F.) 
Echiru 125 
\ Rhaphanocrinus, rediagnosed; Wachsmuth & Springer (336) p. 258. — 
11. sculptus (olim Glyptocrinus) S. A. Miller, redescr. (p. 260, pi. x); 
R. subnodosus , redescr. (p. 259, pi. xi) ; R. wachsmuthi Oehlert, “ ap- 
parently not a typical form ” (p. 259) ; Wachsmuth & Springer (336), 
\Rhipidocrinus\ FRech (88) p. 177: arms and branching (pp. 76, 86); 
Wachsmuth & Springer (336). 
Rhizocrinus , proximate (p. 39), stem (p. 40), its axial canals (p. 46), base 
(pp. 58, 62); Wachsmuth & Springer (336). — R. rawsoni ; Koehler 
( 164) p. 101 : root; Wachsmuth & Springer (336) p. 51. 
+ Rhodocrinidce, redefined, with analysis of genera, geological and geo- 
graphical distribution; Wachsmuth & Springer (336) p. 215: de- 
fined, includes Lyriocr ., Anthemocr ., Rhipidocr ., Thylacocr ., Ollacr. 
(' G oniasteroidocr .), Rhodocr. ( Acanthocr .); Zittel (356) p. 130: add 
Archceocr. and Diamenocr . ; Zittel-Eastman (357) p. 145. 
t/?/ioc?ocrm?<s, including Acanthocrinus , rediagnosed and discussed ; 
Wachsmuth & Springer (336) p. 218. — R. asperatus Bill., a doubtful 
A rchceocrinus (p. 254); R. barrisi , with var. nov. striatus , Upper Bur- 
lington, Burlington, la., var. divergens Hall is only a mature form 
(p. 230, pi. xii) ; R. benedicti , description translated from S. A. Miller 
(p. 224) ; R. ccelatus S. A. Miller, syn. of R. nanus (p. 228) ; R. coxanus , 
redescr. (p. 222, pi. xiii); Wachsmuth & Springer (336). — R. echina- 
tus Schloth., see Millericrinus. — R. qonatodes , ? = Diamenocr ., arms 
(p. 80), R. gracilis Hall, not recognised (p. 220) ; R, Jcirbyi , redescr., 
with note on colour of fossils (p. 226, pi. xii), cirri (p. 44) ; R. nanus , 
redescr. (p. 288, pis. xi & xii), cirri (p. 44); R. nodulosus , redescr. 
(p. 225, pi. xiii) ; R. parvus , redescr. (p. 229) ; R. rectus Hall, not 
recognised (p. 220) ; R. spinosus and R. varsoviensis of Hall, not recog- 
nised (p. 220); R. vesperalis White, referred to Diabolocr. (p. 251); 
R. wachsmuthi , redescr. (p. 222, pis. xiii, xv) ; 11. watersianus , redescr. 
(p. 221, pi. xii); R. whitei , including var. burlingtonensis as a large 
example, redescr. (p. 223, pi. xiii) ; R. wortheni , redescr. (p. 220, pis. xi 
& xii) ; R. wortheni , var. nov. urceolatus , Lower Burlington age, Lake 
Valley, New Mexico (p. 221, pi. xii); Wachsmuth & Springer (336). 
— R. (?) sp., cup-plates from Cornwall; Collins (54) p. 81, pi. e. 
R. blairi , Chouteau limestone, Sedalia, Mo. ; Miller & Gurley (233) Bull. 
Illinois Mils, ix, p. 37, pi. ii. — R. bozemanensis, Upper Burlington or 
Lower Keokuk Group, Bridger Mts., near Bozeman, Montana ; Miller 
& Gurley (235), Bull. Illinois Mus. xii, p. 40, pi. iii. — R. bridger- 
ensis, ibid . ; op. cit. p. 41, pi. in.-—/?, douglassi, ibid . ; op. cit. p. 39, 
pi. iii. — R. truncatus , Upper Burlington Limestone, Burlington, Iowa; 
Wachsmuth & Springer (336) p. 231, pi. xiii. — R. tuberculatus , Lower 
Burlington age, Lake Valley, New Mexico ; op. cit. p. 232, pi. xiii : n. spp. 
j-JSaccocoma, plankton; Walther (338) p. 212. 
■\-iSaccocomidce, defined, includes only Saccocoma\ Zittel (356) p. 144, 
and Zittel-Eastman (357) p. 172. 
+ Saccocrinus : — S. benedicti S. A. Miller = Periechocr. ornatus (p. 527); S. 
egani S. A. Miller = Periechocr. infelix (p. 525); Wachsmuth h 
Springer (336). 
iSagenocrinuS) base; Wachsmuth & Springer (336) p. 58. 
IScaphiocrinus , cirri (p. 44), arm- branching (p. 75), anus (p. 137); Wachs*- 
muth & Springer (336). 
S. notatus, Kinderhook Group, Le Grand, Iowa ; Miller & Gurley (233) 
Bull. Illinois Mus. ix, p. 36, pi. ii, n. sp. 
j-Schizocrinus, columns ; VVhiteaves (344) p. 159: arm-branching; Wachs- 
muth & Springer (336) p. 77. 
t Scytalocrinus, anus; Wachsmuth & Springer (336) p. 137. 
Semiarticulata J. S. Miller; Wachsmuth & Springer (336) p. 13. 
■\SiphonocrinitA, rediagnosed, has 5 not 3 IBB (p. 209), tegmen (p. 122); 
