60 Echin. 
XIV. ECHIXO DERMA. 
is to be called D. icaunensis , Rauracian of l’Yonne; Valette (237) 
p. 139, pi. i. 
t Diplopodia-. — T). sinaica and D. variolaris ; Fourtau (96) p. 619. 
\Discoidea seu Discoides , general scheme of periproctal plates (p. 21); D. 
forgemolli, periproctal plates (p. 22); D. inferus preserving plates of 
periproct which are descr. and figd. and shown to resemble those of 
I). minimus of which this sp. may therefore be a syn.; I), minimus 
of Michelin coll, cited by Agassiz Catal. systemat. p. 7, comes from 
Orcher in Gonfreville-FOrcher (Seine-Inf.) and not from Dept. Orne 
(p. 21), the periproctal plates of the species (p. 22): Lambert in 
Fortin (91). B. pulvinatci ; Fourtau (96) p. 626. D. svhuculus , 
periproctal plates; Lambert in Fortin (91) p. 22. 
t Bitremaster nux , vide sub Hemiaster pellati. D. schweinfurthi vide sub 
Hemiaster. 
Borocidaris ; Uexkull (235). D. canaliculata , from Zanzibar, fide A. 
Agassiz MS. label; Ludwig (158) p. 550. B. papillate ,; f Airaghi 
( 2) p. 362, pl.-f. 1 : breeding period, habitat, commensals, varieties 
according to depth ; Lo Bianco (147) p. 473. 
t Echinanthus: — E. camerinensis ; Ugolini (236). E. libycus ; Fourtau 
( 96) p. 652. E. oosteri ; Airaghi (4) p. 156. E. zitteli ; Fourtau 
( 96) p. 651. 
Echinarachnius :— \E. brewerianus , vide sub Clypeaster . E. excentricus , 
Quaternary of California (p. 170, pi. xxii); + E. gibbsi Remond as 
Scutella , redescr. (p. 169, pi. xxii): Merriam (175). E. parma, 
breeding period ; Bumpus (49) : effect of salt-solutions on ova; 
Morgan (178) p. 496. 
t Echinobrissus: — E. pseudominimus ; Fourtau (96) p. 626. E. vincen- 
tianus\ Hall & Pritchard (117) p. 49. 
Echinocardium :—vide etiam A mphidetus. The genotype should be Spatan- 
gus atrops Lam., which is also genotype of Moera Michelin; Schlueter 
( 209) p. 110. iE. sp. nondescr., Pliocene, Egypt; Fourtau (96) p. 723, 
& (98) p. 201. E. cordatum, distribution, habitat, habits ; Allen (8) 
p. 476: breeding period, habitat; Lo Bianco (147) p. 474. E. 
Jlavescens , redescr. in detail, from specimens of various sizes, and 
compared esp. with E. pennatijidum ; Koehler (141) p. 180, pi. iv. 
E. mediterranean ; Condorelli (61) p. 36: breeding period, habitat ; 
Lo Bianco (147) p. 474: redescr. in detail and compared with E. 
cordatum , E. jlavescens and E. pennatijidum ; Koehler (141) p. 175, 
pi. iv. 
f Echinoconus :— E. aegyptiacus , Upper Cenomanian or Turonian of Attaka 
or Abou Darague, Egypt; Fourtau (96) p. 626. E. conicus , a small 
rounded var.; Dibley (75). E. globulus ; Anthula (18) p. 59. E. 
magnificus , from Gaillon, measured ; Fortin (90) p. 386. 
t Echinocorys :—vide etiam Ananchytes. E. ovatus , cited by Zittel, from 
Garumnian of the Oases, but doubtful; Fourtau (96) p. 632. E. 
vulgaris , crystallography of plates ; Cesaro (54) p. 99. 
Echinocyamus pusillus; Haeckel (115) pi. xxx: breeding period; Auri- 
villius (21) p. 15: distribution, habitat, food; Allen (8) p. 474. 
t E. pyriformis , very small specimens approaching E. ajinis ; Airaghi 
( 4) p. 148. iE. thuilei , n. sp., Helvetian ii, Gebel Geneffe, Egypt; 
Gauthier in Fourtau (96) p. 696, pi. ii. 
t Echinocystis, vide etiam sub Protocidaris. E. pomum , jaws discussed, 
ambulacra described and figd.; Sole as (216) p. 707. 
Echinodiscus biforis , from Lamu and Madagascar; Ludwig (158) p. 556. 
t Echin lampas: — E. sp. non-descr. Fuchs, allied to E. hemisphaericus and 
E. pyramidalis ; Fourtau (96) p. 712, and (98) p. 201. \E. sp., 
Pliocene, Egypt; Fourtau (96) p. 723. E. ajfi/nis, measurements 
and variations; Airaghi (4) p. 158. E. ajricanus; Fourtau (96) 
