14 ECHiarODERHATA. 



TetrapygliS Agass. Monogr. Echin. 2 de livr. 1841. rerpdg, quatuor; nvyr), anus. Cifftiriflea. 

 ThttlassemaceW Forb, Hist. of Brit. Starf 1840. &dlaaaa, mare. MMotothurideu. 

 Thalassemata Cuv. Begn. anim. 2 de ed. 1830. &dkaaaa, mare. MMolothurideh. 

 TlialassiailtllllS Cuv. Regn. anim. 1830. &dlaaaiog, marinus; dv&og, flos. MMolothuridea. 

 TlieleiiOta Brandt Act. Ac. Pet. 1835. ■d-rjlr), mamilla ; vcorog, dorsum. MMotothuridea. 

 Tliyone Oken Lehrb. d. Naturg. 1815. Nom. propr. MMotothurittea. 

 Tht/OUes Forb. Hist. of Brit. Starf. 1840. Thyone. MMotothuridett. 



Tieilemaiiuia Leuck. Isis, 1831. Dic. Tiedemann. MMolothuridea. 



Toiiia Gray Ann. of Nat. Hist. 1840. Vox euphon. A.Sferiffj tf. 



Tosia Gray Ann. of Nat. Hist. 1840. Vox euphon. Asferitfetf. 



Toxaster Agass. Catal. syst. Echin. 1840. rot-ov, arcus; dgr)p, stella. Spatangoittea. 



Toxopneustes Agass. Monogr. Echin. 4° livr. 1840. ro^ov, arcus; nvsvco, spiro. Citlarittett. 



Trepailg Jceg. De Holothur. 1833. Vox barbar. MMolothuridea. 



TriacriiillS Miinst. Beitr. z. Petref. i, 1839. rpelg, tres ; xpivog, lilium. Criltoiflett. 



Triauisites Rafm Crinoittea. 



Teicliaster Agass. Prodr. Echin. 1834. rpixcc, triplex; dgr)p, stella. Ophiurittea. 

 Tripiicustes Agass. Monogr. Echin. 4 e livr. 1841. rpc, ter; nveva, spiro. Citttiritfefl. 

 Trisactis Link De Slell. marin. 1733. rpelg, tres; dxrig, radius. Asferiffetf. 

 Triskaillecactis Link De Stell. marin. 1733. rpcaxaiSsxa, tredecim; dxxig, radius. Asferittetl. 



Trocllites Auct. veter rpoxeog, rotans. Crinoiftetl. 



Uliiopliora Gray Ann. of Nat. Hist. 1840. vvig, vomer; cpopem, fero. Asterittea. 

 Craster Agass. Prodr. Echin. 1834. spd, cauda ; dgr)o, stella. Asteritlefl. 

 MJrasteritB Gray Ann. of Nat. Hist. 1840. Uraster. Asleriflea. 

 Vermigrada Forb. Hist. of Brit. Starf. 1840. Vermis; gradus. MMolothltriflea. 



ERRATA. 



Astropyga Gray lege anno 1825 et non 1827. 

 Post Camarosoma adde: 



Campaiia V. Phels. Brief over Zee-Egel, 1774. Nom. propr. Spatangoittea. 



Cidaridea Gray Iege anno 1825 et non 1827. 

 Post Chirodota adde : 



Cidarella Desmoul. Etud. Echin. 1835. Cidaris. Cidarideu. 

 Diadema Gr. lege anno 1825 et non 1835. 

 Discoidea Gray lege anno 1825 et non 1885. 

 Glenotremites Goldf. lege 1826 pro 18. 



