ECHINOIDEA, ASTEROIDEA. (IV, C, D.) Echin. 91 
T. esculentus y T. deprcssus, and T. gratilla (pp. 113, ll4), diagnosis as 
member of Schizechininae (p. 136), T. depressus , differences fr. T. escu- 
lentus (p. 113), T. esculentus (Leske), descr., pedicellariae and spicuies 
figd. (p. 112, pi. xxi) ; Mortensen (229). T. gratilla ; Bell (11) 
p. 247 : incl. liipponoe variegata\ DoederRein (62) p. 688. t T. varie- 
gatus (Leske), descr., syn. of Echinus qratilla Linn. ; MoRtensen 
( 229) p. 113. 
+ Trochotiara, diagnosis (p. 194), T. priscum and T. superbunt (p. 195) ; 
Savin (283). 
Tromikosotna n. g. of Echinothuridae, with genotype T. koehleri n. sp., 
Davis Str. (pp. 62, 65) pedicellariae (p. 45, pi. xiv) complete description, 
p. 78, pis. xi-xiv; Mortensen (229): genus diagnosed; Meissner in 
Hamann (125) p. 1354. 
\Tylocidaris\ — T. clavigera , radioles; AiRAGhi (3) p. 319. Tylocidaris 
vexilifera [sic] ; Ravn (265) p. 423. 
t Typocidaris diagnosed as s.-g. [of Cidaris ?] (p. 227), T. cf. farringdonensis 
(p. 230), T. marginata, discussed by Lambert, radioles descr. (p. 228) ; 
Savin (283). 
Urechinidae n. fam.= Urechininae Duncan ; Meissner in Hamann (125) 
p. 1344. 
Urechinus ndresi , possible specific difference between fasciolate and 
adete individuals figd. Agassiz, Challenger Rep. ; Lambert (176) 
p. 29. 
(D.)-ASTEkOIDEA. 
Acanthaster echinites ; DoRderlein (62) p. 687 v 
Anasterias , the genotype A. minuta (cum Syn. A. nuda) is Syii. of 
Asterias antarctica , but the genus is maintained and rediagnosed, 
apparently with A. perrieri Stud, as genotype (p. 42), A. belgicae 
70° S., 84° W., 560 tn., detailed descr. 6f adult and young (p. 51, pis. vi, 
vii), A. chirophora , circa 70°-71° S., 82°-89° W., 450-560 m., detailed 
descr. of adult and young (p. 43, pis. v, vi, vii), A. laded 71° S., 89° W., 
450 m. (p. 50) n. spp. ; Ludwig (204). 
Archaster agassizi , A. robustusl Howe (150). A. tenuispinus; Norman 
( 239) p. 407 : Petersen (259). 
\Arthraster dixoni ; Rowe (276) p. 49. 
\Aspidosoma arnoldi , arm-structure; Jaekel (154) p. 112. 
Asterias glacialis ; Nichols (236) p. 252 : Norman (239) p. 409 : PeteRsen 
(259): Schuecking (290): Simpson (294) p. 40: Viguier (313). A. 
groenlandica , notes; Michailovskij (223) pp. 474, 525. A. hispida; 
NichoLs (236) p. 253. A. hyperbored , incl. A. norntani &s young, 
measurements and notes ; Michailovskij (223) pp. 473, 525. \A. 
jurensis ; Siemiradzki (293) p. 421. A. tincki, incl. A. guhneri , a 
regenerate ray; Michailovskij (223) pp. 473, 524: incl. A. guitneri 
and A. stellionura; Norman (239) p. 409: Var. guMieri, pedicellariae; 
Mortensen (227) p. 71, pi. ii. A. mitelleri; LonnbRRg (197) p. 27: 
Norman (239) p. 409: incl. A. groenlandicd as var. ; MorteRsen (227) 
£ . 68, pi. ii. A. murrayi ; Nichols (236) p. 253. A. ochraced ; 
oeb (192), (193) & (194): ventral view; Jordan & Heath (160) 
p. 141, fig. 87. A. panopla\ Michailovskij (223) pp. 474; 524: 
Norman (239) p. 409: pedicellariae; MorteRsen (227) p. 70, pi. ii. 
A. rubens ; Johansen &Levinsen (158) p. 284: Nichols (236) p.252: 
Norman (239) p. 409: PRtersen (259): Simpson (294) p. 40: Thom- 
son & Rennie (304) p. 55 : dissection and good diagrams ; KuRkeRthal 
( 173) p. 126: food; Lonnberg (197) p. 26: (v. et. sub tlrak&r) i var. 
atienuata ; Simpson (294) p. 41. A. vulgaris , dissectioii ; Pratt (26l). 
Asterina cepheus', BelR (11) p. 245. A. gibbosa; Nichols (236) p. 249. 
1903. [Vol. XL.] e 30 
