ECHINOIDEA. (iV, C, D.) 
Echin. 85 
Boveri (41): ovum and larva; Boveri (43): see n, f, iii, iv, viii ; 
Delage (90), Rawitz (255 & 256), & Viguier (312 & 313) vide etiam 
sub Toxopneustes. S. purpuratus , colour, measurements, pores, one 
small specimen may be S. franciscanus ; Clark (63) p. 331: see II, F, 
viii ; Gies (133). 
f Thylechinus discussed and maintained; Gauthier in Fourtau (119) 
p. 45; syn. of Micropsidia ; Lambert in Review. T. aublini , see 
Phymosoma. 
\Tiarella Pomel, v. Trochotiara ; Lambert in Petitclerc (240). 
f Tiaridia bcitnensis juv., 8 mm. diam. ; Fourtau (119) p. 8. 
f Tiaromma, distinguished from Trochotiara ; Lambert in Petitclerc 
(240) p. 236. 
t Tiarotropus Pom., syn. of Psephechinus ; Lambert in Petitclerc (240) 
p. 238. 
t Toxaster :—-T. cf. collegnoi; Pellat (237). T. complanatus and var.; 
Boehm (34). T. elegans , T. texanus ; Boese (36) p. 11. 
t Toxopatagus italicus ; Airaghi (1) p. 213. 
Toxopneustes lividus, vide sub Strongylocentrotus. T. (?) semituberculatus , 
resembling T. variegatus, measurements; Clark (63) p. 332. T. 
variegatus; Clark (64) p. 344, & (66) p. 253: ovum; Boveri (43) 
pp. 638, 642: see ii, f, viii; Morgan (212) & Wilson (326). 
t Trachyaster discussed; Oppenheim (229) p. 167. 
t Trematopygus oblongus; Grossouyre (145) p. 9. 
iTripylus frag ills ; Br^gger (46) pp. 157, 641. 
Trochodiadema , distinguished fr. Trochotiara ; Lambert in Petitclerc 
(240) p. 237. 
f Trochotiara nom. nov. pro Tiarella Pomel non Swains, nec Schulze, 
redefined with genotype Diadema priscum Ag. [used as neuter word 
by author, but must be feminine] (p. 236), t T. depressum [sic] (Ag. as 
Diadema ), the species fixed, probably excludes English specimens fr. 
Inf. Ool. and Batlionian, and certainly that fr. Cornbrash (p. 233); 
Lambert in Petitclerc (240). 
(D.)—ASTEROIDEA. 
Arcliaster tenuispinus \ Knipovitsch (171). 
Asteracanthion , vide Asterias. 
Asterias (inch Asteracanthion):—A. enopla ; Whiteaves ,320) p. 55. 
A. forbesi ; Mead (207): ’Whiteaves (320) p. 54: see n, f, viii; 
Mathews (204). A. glacialis; Newbigin (221) p. 127: Todd (302) 
p. 364 : eye ; Pfeffer (242): (?), Bipinnaria ; Mortensen (214) 
p. 12 & fig. : absorbent and lacunar systems; Cuenot (78): osmosis; 
Bottazzi (38) p. 63: see n, f, iii, iv d, viii; Delage (88, 89, 90). 
A. groenlandica ; A. gunneri, differences fr. type in Greenland specimen, 
colour in life and spirit: Rankin (252) p. 172. A. (?) hexactis , variations 
in size of rays; Clark (63) p. 329. A. hispida\ Todd (302) p. 364. 
A. mulleri , eye ; Pfeffer (242). A . ochracea ; Clark (63) p. 329. 
A. panopla\ Knipovitsch (171): Ostergren (231): arms 25 cm.; 
Kolthoff (174) p. 79. A . polaris-, Rankin (252) p. 171 : Whiteaves 
(320) p. 55. A. rubens ; Fauvel (108) p. 103: popular account; 
Newbigin (221) p. 127: dissection; Shipley & MacBride (280) 
p. 239, text-fig.: general anatomy; Masterman (203) p. 156 : absorbent 
and lacunar systems; CcIcnot (78) esp. p. 237 : eye; Pfeffer (242): 
see ii b ii d. 1; Chevrel (59): pigment; Griffiths & Warren 
(144) as Uraster: regeneration; Entz (104) p. 10, fig. 6: feeding; 
Buerkel (48) p. 26, & Rauschenplat (254) pp. 91, 108: Bipinnaria ; 
Mortensen (214) p. 12 & fig.: and var. molacea ; Todd (302) p. 364. 
A. stellionura ; Knipovitsch (171): Whiteaves (320) p. 55. A. 
