— 494 — 



Ciypldia Dalman 1828. Uppstalln. etc. af Terebratuliter p. 

 41. * > Oken isis 1830. p. 59. 



Etym. yvip, vultur; eidog, facies. 

 Brachiopodum genus novum, 



Menke 1830. Syn. p. 96. — in familia Terebratula- 

 ceorum. 



Pariter Pot. et Mich. 1844. Gal. II. p. 28. 

 Bronn 1837. Leth. p. 75. — in Brachiopodis. 

 = Pentamerus Sow. (monent. Buch et Morris.) 

 Ciyiiidium Beyrich 1837. Beitr. z. Kenntn. d. Rhein. Ueber- 

 gangsgeb. * et Brown 1844. Foss. Conch. * 

 = Gypidia Dahii. 

 Cyraulus Agass. 1837. Nouv. Mem. Soc. Helv. I. * 

 Etym. yvQog, rotundus; avXogy tubus. 

 Subgenus Planorbis. 



Pariter IIartm. 1840. Syst. Uebers. et 1844. Erd- 

 und Siissw. Gast. I. p. 95. 

 Ciyrina SciiUM. 1817. Essai p. 253. 



Etym. yvQivog , rana juvenilis caudata. 

 Ad Ranellas referendum genus. Typus : Ranella reti- 

 cularis Linn. 

 Cyroceras De Komnck 1844. Terr. houill. p. 530. 



= Gyroceratites Meyer. 

 Ciyroceratites Meyer 1831. Nov. Act. Acad. Caes. Leop. 

 XV. 2. p. 72. * 

 Etym. yvQog, rotundus; xsQccg, cornu. 

 Novum genus Nautilaceorum. 



Bronn 18.37. Leth. p. 102. 1285.— Spirulae injungit. 

 Quenstedt 1840. Leonh. et Br. Jahrb. p. 280. — ad 



Lituitas refert. 

 Desh. 1845. Lamck. ed. 2a XI. p. 254. — Campy- 



litae injungit. 

 Synon. Orthocera (sp.) Sow. Keferst. Morris. 

 Spirula (sp.) Goldf, Bronn. Troost. 

 Inachus (sp.) Hisinger. 

 Lituites (sp.) Ouenst. 

 Cyrtoceras (sp.) Miinst. Philbps. Morris. 



