ECHINOIDEA. (iV, B, C.) 
Echin. 51 
Agassiz (3) passim. Crenulation of tubercles, slight value ; de 
Meijere (57) p. 24. Radioles, in Clypeastroida ; op. cit. p. 104. 
Fascicles, not safe ; Bather (18) p. 298: doubtful; de Meijere (57) 
p. 165, 241 : Subanal, in Spatangoids ; Agassiz (3) p. 179. 
Ahatus cavernosus, specimen r6 mm. long descr. ; Agassiz (3) p. 211, 
pi. xcix. 
Acanthocidaris ; Delage (54) p. 227. 
Aceste diagnosis ; Melssner in Hamann (112) p. 1393 : descr. ; Delage 
(54) p. 271, fig. A. hellidifera, radicles ; de Meijere (57) p. 196, 
pi. xxiii. 
'\Acrocidaris granulosa^ not this genus ; Lambert in Review of Lissajous 
(153). 
iAcrosalenia; Dei-age (54) p. 231. A. chartroni n. sp., Hettangian of 
Vendee ; Lambert (148) p. 538, pi. xviii. A. decorata ; Strangways 
(266) p. 40, 49. A. koenighi [sic] ; Glangeaud (101) p. 33. A. 
spinosa ; Clerc (42) p. 99 : apical system, ambulacrals ; Agassiz (3) 
p. 37, 41, & fig. 
Aerope ; Delage (54) p. 272 : diagnosis ; Meissner in Hamann (112) 
p. 1393 : retained among Brissina, but with ananchytid affinities ; 
Agassiz (3) p. 197. A. fulva descr. and compared with A. rostrata ; 
op. cit. p. 194, pis. Iv, Ixi, Ixii : radicles, pedicellariae ; de Meijere 
(57) p. 195, pi. xxiii. 
Aeropidae discussed ; de Meijere (57) p. 243. 
Agassizia ; Delage (54) p. 271 : diagnosis ; Meissner in Hamann (112) 
p. 1392 : apical system (p. 173, f. 287, pi. cviii), A. excentrica compared 
with Spatagoderma (p. 198, figg., pi. cviii) ; Agassiz (3). 
Alexandria discussed ; de Meijere (57) p. 136 : diagnosis ; Meissner in 
Hamann (112) p. 1383. 
Amhlypneustes ; Delage (54) p. 241 : distinguished from Microcyphus 
& Holopneustes (p. 102), A. formosus^ pedicellariae, radicles, &c. 
(p. 103, pi. ii, vi, vii) ; Mortensen (195). A. griseus; op. cit. p. 105 : 
great variation, probably inch A. formosiis, pallidus^ & omim ; Hall 
(111) p. 72. A. grossularia, holotype examined, pedicellariae &c. 
(p. 105, pi. vi, vii), A. ovum^ pedicellariae &c., distinguished from 
A. formosus and from various spp. wrongly referred here by Bell, 
Ramsay, et al. (p. 103, pi. vii) ; Mortensen (195) : vide etiam sub 
Microcyphus zigzag. A. pallidus ] pedicellariae, radicles, &c. (p. 104, 
pi. ii, vi, vii). A. vegae, syn. of Mespilia globulus (p. 106) ; op. cit. 
•\Amhlypygus dilatatus ; Gourdon (102) p. 221. 
Amphidetus cordatus ; tBELLiNi (23) p. 5 : Kiaer (140) : Malard (179) 
p. 194. 
^Amphiope : — A. sp. ind. fragments (p. 175, pi. iv), A. hioculata, specimen 
figd. Quenstedt, 1875, descr. incl. A. hisperforata Parkinson non Leske, 
distrib. (p. 173) ; Sohuetze (251). 
Amphipneustes ; Delage (54) p. 273 : discussed ; Agassiz (3) p. 178 : 
DE Meijere (57) p. 240: diagnosis; Meissner in Hamann (112)p. 1388. 
'\ Ananchites (vel Ananchytes)., vide Echinocorys. 
Ananchytinae ; Delage (54) p. 266. 
Anochaiius diagnosis ; Meissner in Hamann (112) p. 1386. A. sinensis ; 
LuDWiG (164) p. 691. 
Anomalanthus diagnosis ; Meissner in Hamann (112) p. 1382. 
Anthechinus roseus ; Mortensen (195) p. 98. 
Anthocidaris ; Delage (54) p. 245 : diagnosis ; Meissner in Hamann 
(112) p. 1374. 
Aphanopora ; Delage (54) p. 264 : diagnosis ; Meissner in Hamann 
(112) p. 1386: ditto, & A. echinohrissoides descr. ; de Meijere (57) 
p. 142, pis. vi, xix. 
i Aplodiadema validity questioned; Lissajous (153) p. 114. 
