Bacillariese, Naviculacea}, Scoliopleura. 263 



APPENDIX 



Pl. Scalpellum (Kuetz.) Ralfs in Pritch. Inf. p. 917, Namcula Scal- 

 pellum Kuetz. Sp. p. 85 et Bacill. t. 30, f. 13, p. p., Gyrosigma Scal 

 pellum Rabenh. Siissw. Diat. p. 47, t. 5, f. 10 videtur idem ac 

 Pleurosigma Spencerii W. Sm. 



SC0LI0PLEURA Grun. [1860] in Wien. Verhandl. X, p. 554, em. Pell. 

 [1889] Diat. p. 287 (Etym. scolios tortuosus, obliquus et pleura 

 latus), Rabenh. Fl. Eur. Algar. I, p. 228, V. H. Syn. p. 111, De- 

 Toni Osservaz. Tasson. Bacill. p. 896, Navicula? sp. auct., Alloio- 

 neis Schum. [1867] Diat. H. Tatr. p. 73, p. max. parte. — Fru- 

 stula libera, naviculacea, subinde plus minusve torta; valvae valde 

 convexae, rhaphibus valvarum in speciebus typicis generis arcuatis 

 vel subrectis dispositione valvarum obliqua, a fronte visis non sese 

 tegentibus sed sub angulo acuto secantibus; striae margaritatae, 

 transversas, nonnunquam decussatae, rhaphe plus minus flexuosa vel 

 sigmoidea, excentrica. Membrana connectivalis a latere visa obli- 

 quo-sigmoidea. 



Obs. Huc duco, suadente Pelletan Diat. p. 287, nonnullas species 

 Alloioneidis auctorum. 



1. Scoliopleura latestriata (Breb). Grun. in V. H. Syn. p. 111, t. 17, 1107 

 f. 12, Pell. Diat. p. 287, f. 229, Truan Diat. Astur. p. 47, t. 2, f. 45, 

 Amphiprora latestriala Breb. in Kuetz. Sp. p. 93, Grevillea 1872, 



p. 78. Scoliopleura convexa Grun. in W. Verhandl. 1860, p. 555, 

 Rabenh. Fl. Eur. Algar. I, p. 229, Lagerst. Bohiisl. Diat. p. 46, 

 Navicula convexa W. Sm. Br. Diat. I, p. 49, t. 16, f. 136. — Val- 

 vis linearibus, angustis, 100-150 s 25, apicibus cuneatis, rhaphe 

 zona hyalina evidenti, circa nodulum centralem paullulo dilatata 

 cincta ; costis validis, granulatis, circiter 7-8 in 10 u.., prope rha- 

 phen sulco longitudinali zonae hyalinae parallelo interruptis; mem- 

 brana connectivali latiuscula, longitudinaliter striato-plicata; se- 

 riebus binis granulorum subtilium, alternantium , aegre visibilium 

 inter costas praesentibus. 



Hab. in aquis marinis ad oras Anglise (W. Smith, Shadbolt) 

 Galliae (Brebisson), Hispaniae (L. Rabenhorst, Truan y Luard), 

 Bahusiae (Lagerstedt) ; ad aOstende» (Deby). — Color valvse 

 exsiccatae, teste W. Smith, nullus. 



2. Scoliopleura tumida (Breb.) Rabenh. Fl. Eur. Algar. I, p. 229, nos 

 V. H, Syn. p. 112, t. 17, f. 11-13, Pell. Diat. p. 287, f. 230, 232, 



