790 Bacillariese, Euaotiaceae, fiunotia. 



34. Cystopleura? cingulata (Ehr.) Kuetz. Baclll. p. 36, t. 29, f. 66, 

 Sp. p. 4 (sub Epithemia), Eunolia? cingulata Ehr. Araer. p. 126, 

 t. 2, VI, f. 34 (ex ins. Cuba et America boreali), observante Gru- 

 now (1862) fuite sistit Pyxidiculce speciem. 



35. Cystopleura Cocconema (Ehr.) Kunze Revis, gen. plantar. II, 

 p. 891, Epithemia Cocconema Ualfs in Pritch. Inf. p. 762, Eu- 

 notia Cocconema Ehr. Mikrog. t. 34, VII, f. I (e Canton). 



36. Cystopleura Cistula (Ehr.) Kunze Revis. gen. plantar. II, p. 891, 

 Epithemia Cistula Ralfs in Pritch. Inf. p. 762, Eunoiia Cistula 

 Ehr. Mikrogeol. t. 8, I, f. 5 (ex Asia). — Var. lunaris Grun. in 

 Mois. u. Neum. Beitr. Palseont. CEst. Ung. u. des Orients 1882. 

 Fossilis in Hungaria. 



EUNOTIA Ehr. [1837] Ber. Berl. Akad. 1837, pag. 45, Infus. 1838, 

 pag. 189 em. (Etym. eunotos, dorso forti prteditus), Grun. in Wien. 

 Verhandl. 1862, "pag- 331, V. H. Syn. p. 141, De Toni Osserv. 

 tasson. Bacill. p. 910, Himantidium Ehr. [1840] Ber. Berl. Akad. 

 1840, pag. 17, Kuetz. Sp. pag. 8, Brun Diat. Alp. pag. 47, Grun. 

 in Wien. Verhandl. 1862, pag. 337, Climacidium Ehr. [1869] in 

 Abh. Berl. Akad. 1869, p. 47, quod genus confer. — Valv?e ar- 

 cuatae, ecostatse, transverse striatae, pseudorhaphe noduloque cen- 

 trali destitutse, pseudonodulis apice prseditae. Frustula libera vel 

 in fascias conjunctas vel epiphytica, e facie connectivali visa rectan- 

 gularia. 



Pha^ophora sublaminaeformia. Auxosporje singulse e frustulis 

 binis exorientes. 



Subgen. I. Himantidium (Ehr.) Rabenh. Fl. Eur. Algar. I, p. 71 : Frustula in 



fascias arcte conjuncta. 

 A. Fasciae plerumque breves; apices producti valvarum plerumque extror- 



sum revoluti. 



1. Eunotia Arcus Ehr. Inf. p. 191, t. XXI, f. 22, Mikrogeol. t. 16, I, 314S 

 f. 24, II, f. 33, t. 17, II, f. 24, Abh. 1869, t. 2, I, f. 9, A. J. S. 1842, 

 p. 100, t. 2, f. 26, Hass. Freshw. Alg. p. 416, t. 97, f. 5, V. H. 

 Syn. p. 141, t. 34, f. 2, W. Sm. Diat. II, t. XXXIH, f. 283?, Ra- 

 benh. Sussw. Diat. t. 1 f. 6, {Him.) Wigand in Hedwigia II, p. 43, 

 t. VII, f. 13 et 14, Himantidium attenuatum Rabenh. Siissw. Diat. 

 p. 19, t. 1, f. 10, Eunotia curta Cl. et Moell. Diat. n. IbSI, Hi- 

 manlidium Arcus Ehr. in Ber. 1840, p. 17, Kuetz. Bac. t. 5, f. 22 

 et 23, t. 15, f. III et t. 20, f. 43, Bruu Diat. alp. p. 48, t. 2, f . 20. 

 — Valvis arcuatis, 30-90 p. longis, apicibus valde capitatis, latere 



