Bacillarieaa, Amphitropidacese, Amphiprora. 343 



Species mihi tantum nomine notse. 



59. Amphiprora antarctica Grun. iu Cleve et Moeller Diat. n. 125. 



60. Amphiprora semistriata Grun. in Cleve et Moeller Diat. n. 196. 



61. Amphiprora calumetica B. W. Thomas in List Chicago Diat. et 

 in Habirsh.-Chase Catal. of Diat. (exerapl. Debyanurn) p. 26. 



62. Amphiprora tenella Breb. in litt. ad H. L. Sm. Decemb. 1867 

 sec. Habirsh.-Chase Catal. of Diat. (exempl. Debyanum) p. 28. 



63. Amphiprora costata 0' Meara M. J. 1869, p. 151, t. 12, f. 6. 



64. Amphiprora Gregoriana Grev. T. M. S. 1857, t. I, f. 51, Fortm. 

 D. M. p. 16. 



Species a genere removendse. 



05. Amphiprora Ralfsii Arnott — Donkinia compacta, Amph. didyma. 

 (\C). Amphiprora nitzschioides Clevo. = Nitzschia Amphiprora Grunow. 



67. Amphiprora rugosa Petit z=z Nitzschia ocellata Cleve (?) 



68. Amphiprora rugosa (Pet.?) Gr. et St. = Nitzschia Grovei Grun. 

 (B. C. 1888). 



69. Amphiprora recta Greg. = Donkinia recta. 



70. Amphiprora didyma W. Sm. = Donkinise sp.? 



71. Amphiprora conserta Lewis ~ Aniphora? conserta Grun. 



72. Amphiprora lepida Grev. in Ann. Nat. Hist. 1865, p. 5, t. 5, 

 f. 10 videtur Nitzschiae sp. 



Species delenda. 



73. Amphiprora? COrnuta Chase in Walker et Chase, Notes on some 

 new and rare Diatoms, p. 2, t. 1, f. 6, Notarisia 1886, p. 146, Grov. 

 et Sturt Diat. Otago 1887, p. 73. — Ampla, 130 u. longa, medio 

 constricta, apicibus rotundatis, processibus eminentibus, latis, rotun- 

 datis, levibus instructis; striis subtilissimis, zonam numeri 8 ad 

 instar occupantibus, 22 in 10 u, 



Hab. in oceano pacifico ad u Tuscarora»; ad u Oamaru » Novae 

 Zelandise (Grove, Sturt). — Ex Grunow in Botanisches Centralblatt 

 1888, n. 15-16, p. 35, Spongolithum, ut videtur, sistit. 



PLAGIOTROPIS Pfitz. [1871] Unters. Bacill. p. 93 (Etym. plagios 

 obliquus et trepo verto), Van Heurck Syn. p. 121, De Toni 

 Osserv. tasson. Bacill. 1890, p. 898. — Valvre convexae, carinatae; 

 carina valvam in duas partes inaequimagnas dividens, recta, ala 



