26 5 Bacillariese, Naviculaceae, Scoliopleura. 



Truan Diat. Astur. p. 47, t. 2, f. 16, Navicula tumida Breb. in 

 Kuetz. Species p. 77, Scoliopleura Jenneri Grun. in Wien. Ver- 

 hand. 1860, p. 554, Navicula Jenneri W. Sm. Br. Diat. I, p. 49, 

 t. 16, f. 134. — Valvis lanceolato-oblongis, usque ad 160 u.. longis, 

 apicibus subacutis, rhaphe zona hyalina parva, circa nodulum cen- 

 tralem conspicue ampliata cincta; striis circiter 10 in 10 u.., me- 

 diis saepius inaequilongis, radiantibus, arcuatis, subtiliter punctatis. 

 Hab. in aquis marinis et submarinis ad oras Anglia? (W. Smith, 

 Jenner, Williamson) , Galliae (Brebisson), Daniae (Heiberg), 

 Sardiniae (Piccone), Hispaniae (Truan, y Luard), Lusitaniae (Ra- 

 benhorst), Neerlandiae et Belgii (Van Heurck); in mari Kariano 

 (Cleve). — Color valvae exsiccatae, teste W. Smith, pallide pur- 

 purascens. 



3. Scoliopleura Westii (W. Sm.) Grun. in Wien. Verhandl. 1860, p. 555, 1109 

 Rabenh. Fl. Eur. Algar. I, p. 229, Navicula Westii W. Sra. Br. 

 Diat. I, p. 49, t. 16, f. 135. — Mediocris ; frustulis e facie conne- 

 ctivali late linearibus, utroque fine subtruncatis, membrana con- 

 nectivali lata levi ; valvis elliptico-lanceolatis, 80-100 p. longis, 

 acutis; striis subtilibus, circiter 15 in 10 u.., rhaphen vix attingen- 

 tibus. 



Hab. ad oras Augliae (T. West, W. Smith), Galliae borealis (De 

 Brebisson) et australis ad « Cap de la Chappe, Cap Martin »; Da- 

 niae ad insulam (( Limfjord »; ad oras Hollandiae (Van d. Bosch). — 

 Color valvae exsiccatae obscure purpurascens. 



4. Scoliopleura Peisonis Grun. in Wien. Verhandl. 1860, p. 554, mo 

 t. III, f. 25, Rabenh. Fl. Eur. Algar. I, p. 229. — Valvis lineari- 

 oblongis, 35-75 ^ 10-15, obtusis, commissura obliqua, nodulo cen- 

 trali mediocri oblongo, sulcis duobus longitudinalibus comraissurae 

 approximatis ; striis transversalibus et longitudinalibus tenuibus, 

 13-16 in 10 u..; facie connectivali suborbiculari vel lineari-ob- 

 longa, 20-36 ^. lata, in speciminibus longioribus hinc inde cuneata, 

 apicibus rotundatis. 



Hab. ad litora meridionalia lacus Peisonis Hungariae, in aqua 

 stagnanti verisimiliter subsalsa (A. Grunow). 



5. Scoliopleura adriatica Grun. in Wien. Verhandl. 1860, p. 554, t. 3, mi 

 f. 24, Rabenh. Fl. Eur. Algar. 1, p. 229. — Parva; valvis oblongis, 



25 s 7-8,obtusis, rhaphe sigmoidea; striis transversis distinctis, 12-13 

 in 10 u.. 



Hab. inter algas prope Tergeste in mari Adriatico (Grunow). 

 — Scoliopleurce tumidce forte meram varietatem sistit. 



