ECHINOIDEA. (iV, C.) 
Echin. 57 
MoRTENSEN (195) p. 38 : descr. ; de Meijere (57) p. 46, pis. iii, xiv. 
D. molle; Mortensen (195) p. 38. 
fBesorella discussed (?incl. Pachydypeus ; Lambert in Review) &Z). elata 
descr. & figd. ; Woods (293). 
Diadema descr.; Delage (54) p. 231 : diagnosis; Fourtau (83) p. 411. 
D. antillarum, descr. (p. 14, pi. iii, v) [v. et. sub Dermatodiadema]. 
D. glohulosum [ditto], distinguished from D. saxatile, but probably 
syn. of D. savignyi (p. 17, pi. iii), D. lamarchi Rouss., syn. of D. 
saxatile (p. 17), D. mexicanum descr. (p. 15), D. paucispinum^ perhaps 
syn. of D. savignyi (p. 17), D. savignyi, descr. (p. 16, pi. iii-v) ; 
Mortensen (195). D. saxatile ; Bell (22a) : Herdman (120) p. 139 : 
Martens (185): { = setosum), radioles, pedicellariae ; de Meijere (57) 
p. 49, pi. xiv : incl. B. setosum, distinguished from B. antillarum & B. 
savignyi, descr., esp. pedicellariae, spicules, & radioles ; Mortensen 
(195) p. 9, pi. iii-v. B. setosum, incl. B. savignyi ; Fourtau (83) 
p. 412. fB. texanum ; Udden (273) p. 37. 
Biadematidae, brief systematic account ; Fritel (87) : classification of 
genera, value of various characters, Fam. should include Biadema^ 
Echinothrix, Astropyga, Chaetodiadema, Centrostephanus,Lissodiadema, 
Placodiadema, Helikodiadema ; Mortensen (195) p. 40. 
Biademida defined (p. 216) descr. with Tribes Biadem-, Salen-, Cyphosom-, 
Echin-ina (p. 229) ; Delage (54). 
Biademina defined with Famm. Aspidodiadem-, Biadem-^ Micropyg-, 
Pedin-, & Hemicidaris-inae ; Delage (54) p. 230. 
Biademinae defined with list of genera ; loc. cit. 
i Biademopsis : — B. buccalis Dumortier non Ag. is syn. of B. serialis, & 
B. nuda Dum. is syn. of Palaeopedina globulus ; Lambert (148) p. 544. 
B. serialis; Lissajous (153) p. 165. 
Bialithocidaris ; Delage (54) p. 237 : diagnosis (p. 55), B. gemmifera 
descr. (p. 56, pis. xv, xxiii) ; Agassiz (3). 
■\Bictyopleurus ; Mortensen (195) p. 112. 
fBiplocidaris; Delage (54) p. 229. B. gigantea; Maire (178). 
iBiplopodia; Delage (54) p. 235. B. aequale (p. 165), B. areolatum 
(p. 163); Lissajous (153). B. aroviense; op. cit. p. 165: Maire (178), 
B. bipunctatum ; Lissajous (153) p. 165: probably not this sp. ; 
Lambert in Review. B. calloviense (p. 162), B. langi (p. 164); 
Lissajous (153): cannot be Desor's sp., wh. is a Polydiadema ; 
Lambert in Review. B. martini n. sp. Lr. Callovian, Mancey nr. 
Tournus, cotypes Mus. Tournus, Lissajous; Lissajous (153) p. 162, 
pi. ii. B. oppeli; Walther (281) p. 167. B. tajfi, descr. ; Loriol (162) 
p. 56, pi. iv. B. texanum ; Richardson (227) p. 48. 
Biplopodidae rejected ; Mortensen (195) p. 44. 
Biploporus Trosch., rejected (p. 75) but might be used for Salmacis 
dussumieri (p. 76) ; Mortensen (195). 
Biplothecanthus diagnosis; Meissner in Hamann (112) p. 1382. 
Biscocidaris (vide etiam sub Cidaris) ; Delage (54) p. 227. 
fBiscocystis ; Klem (142) p. 73. 
fBiscoidea : — B. cylindrica ; Strangways (266) p. 80 : Wollemann (290). 
B. infera, B. minima, B. pentagonalis ; Collet (44) p. 76. 
■^Bitremaster nux; Gourdon (102) p. 220. 
Borocidaris (vide etiam sub Cidaris) ; Delage (54) p. 228, fig. B. brac- 
teata (p. 23), B. panamensis, descr. & discussed (p. 20, pis. i-v) shape 
of test (p. 1, f. 3) size of actinal system (p. 3, f. 12) anal plates in 
young (p. 7, f. 22, 24) growth of coronal plates (p. 9, f. 26-29 & 43-45) ; 
Agassiz (3). B. papillata; de Meijere (57) p. 204: juv., anal 
system (p. 3, f. 14), pedicellariae (p. 22) ; Agassiz (3). 
\Bysaster : — B. gramdosus; Welsch (283) p. 27 : Lissajous (153) p. 180. 
B. moeschi; loc. cit. B. siliceus; Siemiradzki (255) p. 142. 
