ECH1N0IDEA. 
Ecti. 63 
f Corculum, Pomel, discussed ; Lambert (146) p. 97. 
f Cyclaster lycoperdon , Tertiary, Australia, Bittner, SB. Ak. Wien, 
ci, Abth. 1, p. 360 ; it is syn. of C. archeri , Ten.-Woods, Tate 
( 257) p. 193 : n.sp. 
t Cyphosoma : — C. amelicc, Cott., p. 25, 0. arnaudi , Cott., p. 29, Senonian 
of Angouleme ; Arnaud (9). C. atacicum , Cott., see Gagaria. C. 
aquitanicum , Cott. ; Aguilera (4) p. 26. C. blanggianum, Desor 
sp., see Coptosoma. C. cotteaui, p. 28, C. dcsmoidinsi , p. 29, Senonian 
of Aitgouleme ; Arnaud (9). C. engolismense , Arnaud, apical 
system described and compared ■with that of other Cyphosomata 
and of Gautliieria ; Cotteau (42) p. 731 : from Turonian of 
Angouleme compared with (7. archiaci , Cott. ; Arnaud (9) 
p. 18. C. macrostoma, Dune. & Slad., see Coptosoma. C. magni- 
ficum , Seuonian of Angouleme ; Arnaud (9) pp. 27 & 28. C. 
noguesi , Cott., referred to Gagaria atacica ; Cotteau (44) p. 525. 
(7. pellati , Cott., see Coptosoma. C. pellati , Bouill6, see Circopeliis 
bouillei. C. pulcliellum , referred to Orthechinus ; Cotteau (46) 
p. 351. C. radiatum, Sorignet, and C. sp.; Parent (207) p. 317. 
C. sacmanni , Danian of Angouleme ; Arnaud (9) p. 34. C. tertiarium , 
Lehon, see Coptosoma. C. texanum, Roem.; Aguilera (4) p. 26. C. 
undatum , Dune. & Slad., see Coptosoma. C. verncuili, Danian of 
Angouleme; Arnaud (9) pp. 34 & 41. 
C. rejaudryi [ascribed to Arnaud, but apparently] n. sp.. Lower Campanian 
of Floirac in Charente-Infdrieure ; Cotteau, Mem. Soc. zool. France, 
vi, p. 349. 
f Cystechinus, A. Agass. ; Agassiz (3) pp. 77, 79, 81, & 83, Lambert 
' (146) p. 98. 
f Diadema arenatum , d’Arch., see Arachniopleurus. t D. desori } Reuss ; 
Toula (265) p. 291. f“D., cf. desori , Reuss,” Futterer, is syno- 
nym of D.nanum ; Sandberger (234). D. setosum , Desm. ; Studer 
( 256) pp. 22, 248, & 256, Loriol (154) p. 363 : protection by spines ; 
Field (82) p. 83 : protection afforded by spines, respiratory bladder, 
blue eye-spots ; Kent (135) p. 42 : see also under Cidaris savignyi, 
f D. variolare , Agass., see Diplopodia renevieri. 
f Diademopsis, cf. globulus , Agass., Lower Lias, Calabria ; Greco (100) 
p. 79. 
f Diplocidaris : — D. desori , Wright ; Woodward (276) p. 370. D. 
gigantea, Agass. ; Greppin (104) p. 99. 
f Diplopodia : — D. hilli, Clark, originally referred to P seudodiadema , now 
redescribed and first figured ; Clark (36) p. 50. D. texanum [should 
be texana ], Roem. sp., previously referred to Cyphosoma and Pseudo- 
diadema } now first referred to this genus, also thought to include 
Echinus bolivar ii, d’Orb., redescribed ; Clark (36) p. 48. D. malbosi 
?, Desor ; Aguilera (4) p. 26. D. renevieri ) Cotteau sp., described 
with its varieties and young, and literary history discussed ; Lam- 
( BERT (145) p. 58. 
T Dipneustes, n. g., with type D. aturicus , n. sp., Danian of Rivieres, near 
Tercis (Landes) ; Cotteau, C.R. Ac. Sci. cxiv, p. 891. 
