ECHINOIDEA. IV, C. Ech. 45 
M. loi'ioli, maintained (p. 234); M. marginalia, discussed (p.228); 
M. matheroni , Desor, discussed and defined, includes Epiaster miclialeti , 
Coquand (p. 188) ; M. michelini , defined and discussed (p. 192) ; 
M. normannice , probably var. of M. breviporus (p. 221) ; M. peini , dis- 
cussed (p. 247); M. regularise discussed (p. 224); M. renati , Gauthier, 
olim Epiaster , discussed (p. 226); M. rostratus , defined and discussed 
(p. 173); Af. sanctce-maurce (p. 225); M. sublacunosus (p. 211) ; M. ter- 
censis, defined and discussed (p. 203); M. tropidotus, discussed (p. 191); 
M. turonensis , maintained and fully discussed, with varying details 
figured (p. 212) : Lambert (83). 
M. carentonensis , Senonian of Charentes and elsewhere, hitherto referred 
to M. laxoporus (p. 240) ; M. corbaricus , Lower Senonian, Pyrenees 
and elsewhere, hitherto confused with M. brevis (p. 237) ; M. icaun- 
ensis , Lower Senonian, l’Yonne, l’Aube, la Marne, et l’Aisne, hitherto 
considered a var. of M. decipiens (p. 235) ; M. provincialis, Mornasien 
(= Santonien inferieur) de Ceyreste, pres-la Ciotat (Bouches-du- 
lthone), (p. 219, no figure) ; M. senonensis , Lower Senonian of 
l’Yonne and elsewhere, hitherto confused with M. gibbus (p. 239) : 
Lambert (83), n. spp. 
\Monostychia australis , see Arachnoides conica. 
Neolampas rostellata ; Koehler (79) p. 230. 
iNucleolites : — N. papillosus ; Tate (157) p. 123. N. pyramidalis; Maz- 
zetti (108) p. 437. 
\ Off aster pomelie Mun. Chaim., maintained ; Lambert (83) p. 265. 
f Oligoporus : — 0. dance , refigured (p. 126), 0. parvus (p. 127); Keyes 
(70). 
0. mutatus , Keokuk Limestone, Keokuk, la. ; Keyes (70), Bull. Geol. 
Surv. Missouri, v, p. 126, n. sp. 
iOpissaster : — 0. bleicheri, referred to Schizaster ; Cotteau & Gauthier 
( 27) p. 45. 
O.centrosus , Senonian of Derre-i-Chahr, Louristan; Cotteau & Gauthier 
( 27) Ech. foss. Perse, p. 45. 0. lovisatoi f Miocene, “Calcaire argileux 
du Mt. S. Michele,” “ Marues pres de la Cantoniera de Cadreas,” 
Sardinia ; Cotteau (26) Mem. Soc. geol. France, Pal. v, fasc. ii, 
Mem. No. 13, p. 48. 0. marice [ascribed to “ Lovisato, 1893,” but 
apparently n. sp.], Miocene, “ Calcaire compact (tramezzario) des 
environs de Cagliari,” Sardinia ; op.cit. p. 49. 0. morgani , Senonian 
of Awasa, Louristan; Cotteau & Gauthier (27) Ech. foss. Perse, 
p. 43 : n. spp. 
\ Or nith aster e rediagnosed; 0. douvillei y Senonian; “Couches a grand 
Cdrites” of Derre-i-Chahr, Louristan ; op. cit. p. 48, n. sp. 
t Orthechinus cretaceus, Senonian of Derre-i-Chahr, Louristan ; op. cit. 
p. 100, n. sp. 
iOrthopsis : — O. globosa , Aftab, Derre-i-Chahr, and Kouh-Mapeul (p. 89), 
O. morgani , Derre-i-Chahr (p. 87), Senonian of Louristan ; op. cit. 
n. spp. 
Palceostoma mirabilis ; Sluiter (151) p. 74. 
