— 600 - 



Trjgoiiocerat^ M'Coy 1844. Carl>. Foss. Irel. * 



Etym. TQlywvos, tnaugulus; xsQccg, cornu. 

 Genus Nautilidaruni. (xAgass. Nom.) 

 Trlgfouocoelia Nyst 1836. Rech. sur les coq. toss. de Houss. 

 p. 12. et Trigonocaelia Nyst 1846. Foss. 

 tert. Belg. p. 239. Cf. seq. 

 Etym. zQiyiovog, triangulus; xoiUay cavitas. 

 Genus Arcaceorum. Typus: Arca aurita Broc, 

 Pariter Sismonda 1842. Syn. anini. invert. p. 20. 

 — Trigonocelia. 

 PoT. et Micii. 1844. Gal. II. p. 117. 

 Gray 1842. Syn. Br. Mus. p. 92. — Trigonocae- 



lia — genus Arcadarum.. 

 Synon. Arca (sp.) Broc. 

 Pectunculus (sp.) Delr. 

 Limopsis Sasso. 



Limnopsis (et Lymnopsis) Gray. 

 Pectunculina D'Orb. 

 Trisonocoeliiis Nyst et Galeotti 1835. BuU. Acad. Brux. 

 II. p. 287. 348. * (Trigonoscoelius teste 

 Agass. Norn.) 

 Genus Arcaceorum, e Nuculis et Pectunculis elec- 

 tum, partim ad Nuculas rursus referendum, sic 

 bene monente Bronn. (1838. Leth. p. 934.) 

 = Trigonocoelia Nyst et Nucula spec. 

 TriKoiiofiiicoeliu» (? Nyst et Gal.) Acjass. 1846. Nom. vid. 



praec. 

 Tri{soiio!§emu«) Koimc; 1825. Icon. sect. * Cf. Sow. jun. 

 Conch. Man. p. 108. et ed. 2a p. 277. 

 Etym. tQiytovos, triangulus; atjfia, slgnum. 

 Genus Brachiopodum ex typo Terebratulae lyrae Sow. 

 = Lyra Cumb. 

 Trisouoiitoiiia Fitz. 1833. Syst. Verz. p. 97. 



Etym. TQiyijovog, triangulus; OTO/iia, os. '*) 



84) Trigoiiostoina Dejean (1H33.) gcnus Lepidopterorum. 

 Trigonostoma Mac Leay (1838.) genus Crustaceoriim. 



