crinoidea. (iv, f.) Echin . 99 
Holopocrinacea , group of Cryptocyclica , comprises Eugeniacrinidae and 
llolopodidae ; Steinmann (299) p. 185. 
Rolopus rangi, habitat ; Ravn (265) pp. 422, 442. 
\Rydreionocrinus depressus , arms; Grabau (109) p. 299 & fig. 
Ryocrinacea , group of Monocydica , comprising Raplocr ., Triacr., Heterocr ., 
Calceocr., Costata Jaekel, and allies; Steinmann (299) p. 172. 
t Ichthyocrinacea, group of j Dicyclica, = Flexibilia impinnata Bather; 
Steinmann (299) p. 179. 
Mchthyocrinus magnaradialis n. sp., Lower Devonian, New Jersey; 
Weller (320) pp. 86, 299, pi. xxxiii. 
\Idiocrinus tennesseensis ; Foerste (84) p. 712. 
Isocrinus (v. et. sub Pentacr .): — +/. australis , redescr. ; Etheridge (74) 
p. 10, pi. iv. 
+ Lampterocrinus tennesseensis ; Foerste (84) p. 712. 
\ Larviformia defined as Order (p. 135) comprises Haplo -, Allage-, Tria-, 
Symbatho -, Cupresso-crinidae ; Zittel (339). 
+ Lecanocrinus : — 7/. pisiformis ( Poteriocrinus ) (p. 712), /X. pusillus (pp. 708, 
712); Foerste (84). 
t Macrostylocrinus striatus ; Foerste (84) p. 708. 
\ Mariacrinus, v. sub Melocrinus. 
+ Marsupiocrinus [i.e. Marsipocr .] : — Jf. striatus , J/. ( Platycrinus ) tennesse- 
ensis; Foerste (84). p. 712. 
t Marsupites :—M. ornatus ; Fritel (96a) p. 48, text-fig. : Wollemann 
( 326) p. 16. M. testudinarius ; Jukes-Browne (161) p. 94 : Reid 
( 268) pp. 52, 58 : Reid (268a) p. 28 & fig. : Rowe (276) p. 3. 
t Megistocrinus : — M. corniger (117) p. 145, pi. xlii : M. expansus (119) 
p. 160, pi. xlvii: ornament discussed (119) p. 166, pi. xlviii : n. var. 
magniventrus , Upper Devonian, Charlestown, Ind. (114) p. i03, 
pi. xxxii & ? (117) p. 141, pi. xli. M . hemisphericus 1 , slight differences 
(117) p. 145, pi. xlii. M. oppelti n. sp., Mid. Devonian, Falls of Ohio 
(116) p. 135, p. xxxix. M. rugosus, variations in ornament (116) p. 131, 
pi. xxxviii : n. var. spinuliferus , Upper Devonian, Charlestown, Inc|. 
(114) p. 102, pi. xxxii. All entries refer to Rowley in Greene. 
Melocrinoidea, subdivision of Actinocrinacea (q. v.), comprising Melocr 
Eucalyptocr., and Uintacr. ; Steinmann (299) p. 175. 
\ Melocrinus ( Mariacr .) nobillisimus [sic], f M. ( Cytocr .) roemeri (— laevis), 
may be f Actinocr. verneuili Troost ; Foerste (84) p. 712. 
+ Mespilocrinus (v. et. Acrochordocr.) : — M. caryophyllatus (p. 336), M. 
macrocephali (p. 329) ; Siemiradzki (293). 
t Millericr. cf. adneticus ; de Alessandri (45) pp. 248, 253. 
Monocydica , as Order, vide supra p. 95 ; Steinmann (299). 
t Myelodactylus (v. et. Brachiocr .), B. gorbyi ; Foerste (84) p. 712. 
Pentacrinacea , group of Cryptocyclica , = Pentacrinidae sensu Bather ; 
Steinmann (299) p. 183. 
\Pentacrinus (including Balanocr. q. v., Extracr. [i.e. Pentacr. s. str.] and 
Isocr. q. v. [i.e. Pentacr. neontologorum] syn. Cainocr.) P. sp. ; 
Wollemann (326) p. 19 : columnals of 2 spp. ; Quaas (262) p. 163, 
pis. xx, xxxi : change in size with zones ; Rowe (276) pp. 34, 38, 42, 
49 : nondescr., columnals ; Vinassa de Regny (315) p. 462, pi. i. P. 
{Balanocr.) africanus ; Oppenheim (240) p. 450, pi. vii. P. alternans\ 
Siemiradzki (293) p. 415. P. amblyscalaris ; Rollier (275) : Siemi- 
radzki (293) p. 383. P. angulatus\ Bistram (14). P. basaltiformis ; 
Fritel (96a) p. 51, text-fig. : Peach (249) p. 168 : Siemiradzki (293) 
p. 436. P. bicoronatus ; Wollemann (326) p. 18. P. bollensis ; Fritel 
(96a) p. 50, text-fig. P. carinatus ; Wollemann (326) p. 17. P. cingu- 
latus ; Siemiradzki (293) pp. 336, 433, 435. P. dentato-granulatus 
n. sp., Middle Gault, Algermissen, Braunschweig, holotype in coll. 
Schrammen, columnals ; Wollemann (329) p. 24, pi. iv. P. desori ; 
