— 395 — 



Discorbes (les Discorbes) Feruss. 1821. Ttibl. syst. p. XXI. 

 Etym. Discorbis. 



Faniilia Decapodum tertiae sectionis. Gcnera : Cris- 

 tellaria, Discorbis, Rotalia. 



DiscorbU (Lamck.) Fkrussac 1821. Tabl. syst. p. XXI. 

 Etym. Discus; orbis. '^) 



Genus Discorbium, cujus sectio prior, costis s^m- 

 metricis, in tres subdivisiones discedit: Planuli- 

 tes, Elbpsobtes, Amaltheus; altera nonnisi Rhizo- 

 poda complectitur. 



Synon. Planulites Lamck. teste Fer. 



Disciis FiTzixGER 1833. Syst. Verzeiehn. p. 99. 

 Etym. Nom. appell. ^*). 



Genus Helicoideorum, ex typis llelicis rotundatae, 

 ruderatae , crystallinae. 

 = Euryomphala Beck et Helicella Beck sp. 



DiiisciiJS Haldeman 1840. Mono2,r. Limn. I. * teste Asrass. 

 Nom. 

 Genus Limniadarum. 



Disciis KiNG 1844. Ann. and Mag. Nat. Hist. * teste Agass. 

 Nom. 

 Genus Nautileorum. 



Dispotaea Say 1824, Journ. of the Acad. of Nat. Hist. of 



Philad. IV. p. 131. 

 Etym. dlg, bisj jioiog sive noTtlg, potus. {nec dvauo- 



Tog, ut vult Agass. Nom.) 

 A Calyptraeis segregatum genus, praecedente Mont- 



fort. (vid. Calyptrus.) 

 Synon. Calyptrus Montf. 



Calypeopsis Lesson. 



Bicatillus Swainson. 



94) Discorbis Lamck. geiius Khizopodum. 



95) Discus Lessoii (1837.) genus Acalepharum. 



