374 Bacillarieae, Cymbellacese, Encyonema. 



pag. 190. — Minutum, gracile, sublineare, 10-15 a. long., medio 

 arcuatum, apicibus obtuso-truncatis; striis obsoletis. 



Hab. in paludosis, in consortio Algarura variarum ad cc Salz- 

 burg » (D. r , Sauter), etiam in Galicia (Gutwinski) et montibus 

 tatricis (Raciborski sec. Gutwinski). — Frustula intra tubulos an 

 gustos, mox evanesceutes inclusa. Huc pro parte pertinet, prae- 

 eunte Van Heurck, Cymbella scotica W. Sm. Br. Diat. I, p. 18. 

 Cocconema gracile Ehr. videtur plane diversum, genuina vere 

 Cymbella. 



6. Encyonema Gerstenbergeri Grunow Diat. ins. Banka p. 9, t 1, 1494 

 f. 11, Schum. Diat. H. Tatra p. 65, t. 2, f. 30. — Valvis lineari- 

 lanceolatis, 70-12, apicibus rotundatis, rhaphe recta, nodulis ter- 

 minalibus ab apice remotis; striis transversis obsolete radiantibus, 

 12-13 in 10 u. 



Hab. in aqua dulci in insula u Banka » (Grunow); in montibus 

 tatricis (Schumann). 



7. Encyonema Triangulum (Ehrb.) Kuetz. Spec. Alg. p. 62, Gloeonema u% 

 Triangulum Ehr. Abh. 1845, p. 77, Mikrog. t. XXXV, A, 7, 



f. 10, A. Schm. Atlas t. 10, f. 54, t. 71, f. 10. — Valvis navicu- 

 laceis, 34 [j.. diam., utrinque acutis, dorsi gibbere altiore inaequa- 

 libus et in formam a latere conspicuam triangularem abeuntibus. 

 Hab. in flumine cc Niagara » (Ehrenberg); ad cc New York » 

 et «Pensacola» (A. Schmidt). — Tubuli continui ab Ehrenberg 

 non visi. 



Species ulterius scrutandae. 



8. Encyonema sinense (Ehrb.) Ralfs in Pritch. Inf. p. 879, Olae.one- \m 

 ma sinense Ehr. Abh. 1847, p. 484. 



Hab. in insula Ja\ r a (Ehrenberg). 



9. Encyonema globiferum (Ehr.) Ralfs. in Pritch. Inf. p. 880, Glwo- ^ 

 nema globiferum Ehr. 



Hab. locus mihi desideratur. 



10. Encyonema? yarrense A. Schra. Atlas t. 71, f. 16. 1498 



Ilab. ad cc Yarra-Yarra » (Gruendler). 



11. Encyonema hebridiceum Greg. in Cl. et Moell. Diat. n. 37. i498* 



Species a genere removendfe. 



12. Encyonema sigmoides (Ehr.) Kuetz. Sp. p. 62 est Pleurosigma 

 (Endosigma) ewimium (Thw.) Gr. et Cl. 



13. Encyonema Ungeri Grun. in A. Schm. Atlas t. 10, f. 63 est Col- 

 letonema lacustre (Ag.) Kuetz. 



