648 Bacillarieae, Trachysplieniaceae, Opephora. 



11. Sceptroneis ? kamtschatika Grun. \n V. H. Syn. t. 37, f. 6 (ao- 2574 

 •men). — Valvis ad 120 u.. longis. 



Hab. ad oras Kaintschatkae. 



12. Sceptroneis ?nitzschioides Grun. in V. H. Syn. t. 37, f. 4, Sf/n- 2575 

 edra '^. nitzschioides Grun. forma cuneata? 



liab. in California. 



OPEPHORA Petit [1888] Mission scient. Cap Horn V, p. 130 (Etyra. 

 ope foraraen et phoreo fero), Notarisia 1888, p. 623, De-Toni Os- 

 serv. tasson. Bacill. pag. 905. — Frustulia e facie connectivali visa 

 cuneiformia (an subinde linearia?), valv;e cuneiformes, costulis plus 

 rainus latis, in marginibus valvarura sitis instructae, area hj^^alina 

 centralis (pseudorhaphe) secus axin raajorem disposita. 



1. Opephora Schwartzii (Grun.) Petit in Pell. Diat. p. 88, Sceptro- ^m 

 neis Schwartzii Grun. in Cl. et Moell. Diat. n. 257, Fragilaria 

 Schwarizii Grun. in Wien. Verhandl. 1863, p. 143, t. 14, f. 7, 



V. H. Syn. t. 44, f. 24, Fragilaria Schioartziana Grun. Alg. No- 

 vara p. 7. — Valvis longe linearibus, apice rotundatis, ad 90 p. 

 longis, 8-10 [X. latis, striis validis, epunctatis, pseudorhaphe inter- 

 ruptis, parallelis, 4 in 10 a. 



Hab. inter varias Algas ad littora Brasilise lectas (Jelinek); 

 ad insulas cc Seyschellen )) (Grunow). 



2. Opephora marina (Greg.) Petit Diat. Cap Horn p. 131, Pell. Diat. 9577 

 p. 88, Meridion marinum Greg. Diat. of the Clyde p. 25, t. 2, 



f. 41, Rabeuh. Fl. Eur. Algar. I, p. 295, V.H. Syn. t. 45, f. 18-19, 

 Sceptroneis marina Grun. in V. H. Syu. t. 37, f. 2, Thalassio- 

 thrix marina Grun. in V. H. Syn. t. 37, f. 8? — Mediocris, val- 

 vis clavatis, ad 5 u.. latis, utroque fine obtusis, apice conico-atte- 

 nuatis, deorsura sensim cuneato-attenuatis, costis transversis 6 in 10 

 [x., abbreviatis, pseudorhaphe (area mediana) anguste obovato-lanceo- 

 lata; frustulis e facie connectivali visis late lineari-cuneatis, 32- 

 36::^ 8-10. 



Hab. ad oras Scotise (GreCxORy), insul. Balearicarum (Grunow). 



— Forte huc pertinet, ut varietas, species mihi omnino ignota 

 Scepironeis mulabilis Grun. in CI. et Moell. Diat. n. 255, 



3. Opephora pacifica (Grun.) Petit Diat. Cap Horn pag. 131, Fragi- 2578 

 laria pacifica Grun. in Wien. Verhandl, 1862, p. 373, t. V, f. 19! 



— Valvis lineari-oblongis, apicibus rotundatis, 30 u. longis, co- 

 stulis validis, in 10 u.., pseudorhaphe angusta. 



