ASTEROIDEA. tick. 79 
f Trematopygua, d’Orb., maintained; Lambert (146) p. 69. T. crucifer , 
Morton sp., rodescribed ; Clark (36) p. 63. 
-f • Triplacidia, Bittner, defined and discussed, p. 605 ; T.fraasi , Lor. sp., 
p. 609; T. lorioli, Cott. sp., p. 611; T. stachei , Bittner, p. 610 ; T. 
vcindenheckei, Agass. sp., redescribed, p. 606; T. veronensis, Bittner, 
p. 611; Cotteau (44). 
Tripneustes varicgatus , Agass.; Loriol (154) p. 373. 
^ \Tristomanthus , n. g., type Catopygus clegctns, Laube; Bittner, SB. Ak. 
Wien, ci, Abtli. i, p. 355 : should be Studeria ; Tate (257) p. 192. 
T. clegans , Laube sp., discussed, specimen with four ambulacra ; 
Bittner (21) p. 352. 
Tripylus fragilis, Dub. & Kor. ; Nordgaard (201) p. 10. 
f Tuberaster , defined and discussed, and T. tuberculatus, Per. & Gauth., 
redescribed; Cotteau (44) p. 658. 
fTylocidaris : — T.aspenda , F. A. Roem. sp., spines described and figured, 
p. 41; T. bowerbanlci , Forbes sp., p. 40; T. clavigcra , Konig sp., 
described, figured, and discussed, p. 45; T. strombeclci , Desor sp., 
spines described and figured, p. 43; T. vclifera, Bronn sp., described 
and discussed, p. 31 ; Sciilueter, Abh. Preuss. geol.Landesanst.Heft.5* 
T. goscc, Lower Senonian, N. Germany, founded on spines, p. 52; T. squa- 
mifera (apparently a new name applied to certain spines from Chalk 
of Sweden, figured by Hisinger, Leth. Suec., tab. xxvi, fig. 56), p. 52 ; 
T. vexillifera, Upper Senonian, Seeland, founded on spines, p. 54; 
Sciilueter, Abh. Preuss. geol. Landesanst. Heft 5 : n. spp. 
f Urcchinus, A. Agass.; Agassiz, (3) pp. 77, 81, & 83, Lambert (146) 
p. 98. 
\ Zcuglopleurus , Greg., discussed ; Sciilueter (236) p. 205. 
(D.)— ASTEROIDEA. 
Classification of the Class ; Perrier (213) pp. 847-854. 
Acanthaster echinites, Ellis & Sol., fifteen arms, of which three are not 
developed and the rest unequal, detailed description, separated from 
A. ellisi ; Loriol (154) p. 387. A. ellisi , Gr.; Studer (256) pp. 218 
& 256 : see also A. echinites. 
Anthenea pentagonula, Lam.; Studer (256) pp. 192 & 193. 
Anlhenoides sarissa , Andaman Sea, 130-250 fms. ; Alcock, Ann. Nat. 
Hist. (6) xi, p. 99, n. sp. 
Archaster tyjncus, M. & T. ; Martens (171) p. 184, Studer (256) pp.248 
& 256 : variations in pedicillaria and spines ; Loriol (154) p. 378. 
Aspidosoma tischbeinianum , F. Roem., marginals ; Halfar (111a) p. 195. 
•\A. petaloides , Simon., n. var. gostariensis , Lower Devonian, Haupt- 
Kahlebergsandstein of Goslar, Harz; Halfar, Jahrb. preuss. Lande- 
sanst. xiii, p. 186. 
Asteracanthion rubens , Linn.; Nordoaard (201) p. 9 : in Eastern Baltic; 
Kojevnikov (143) p. 141. 
Asterias, Norman ; Bell (16) p. 97. A. aniurcnsis, Liitk. ; Meissner 
