Sia CLEVE, DIATOMS. 
P. elongatum var. fallax Grun. (Aret. Diat. pag. 50, Pl. NE 
fig. 36). "Transverse strize 22, oblique 20 in 0,01 mm. 
P. strigosum W. Sm. var. convexum Grun. (Arct. Diat. pag. 
50). ”PTransv. strie 20 oblique 18 in 001 mm. É 
Ampluprora (Plogiotrapis) elegans W. Sm. (Van Heurck 
Syn. P1. XXIII, fig. 1—2). 
ÅA. Lepidoptera Greg. 
Amphiprora rimosa O'Meara (M. J. XI, pag. 22, PI. III, fig. 
1). This curious form, found by O'Meara in gatherings from 
Seychells, can scarcely belong to Amphiprora or to any known 
genus of diatoms. 
Achnanthes danica (Flögel) Grun. (Arct. Diat. pag. 21, Stau- 
roneis cornuta Leuduger-Fortm. Ceyl. P1. III, fig. 36). 
Cocconeis? (Achmanthes?) producta Grun. 
Plagiogramma tesselatum Grev. (M. Journ. VII, pag. 208, Pl. 
Snus (NL 
P. nankoorense Grun. (P. constrictum v. nankoorensis Grun. 
Nov. pag. 95, P1. I A., fig. 8. P. ceylanense Leuduger-Fortm. 
Ceylfpag. 527 BULIVS He 59). This species cannot be a variety 
OMP KOR ner Grev., which has transverse coste at the ends. 
It occurs fossil in Nankoori and Monterey deposits, living near 
Madagascar. Rows of puncta 7 in 0,01 mm. In a sample from 
Port Jackson I have seen a small variety, only 0,035 mm. in 
length and with 12 rows of puncta in 0,01 mm., var. minuta Ol. 
Raphoneis? fluminensis Grun. (Van Heurck Syn. Pl. XXXVI, 
fig. 34). 
Niteschia marina Grun. (Aret. Diat. p. 70). 
N. Grindleri Grun. var. — Frustle slightly constriected in the 
middle. Length 0,11. Strix, composed of elongate puncta, 13 
in 0,01 mm. Carinal puneta elongate, 3 in 0,01 mm. 
N. distans Greg. var. quarnerensis Grun. (Verh. 1862, pag. 
580, .P1; XVII; fo:6! Aret Diat.lpag. 87). 
N. socialis Greg. var. seychellensis Grun. (Aret. Diat. pag. 
85). Length 0,24 mm. Breadth 0,008 mm. Carinal puncta 7, 
strie 16 in 0,01 mm. 
N. fluminensis Grun. (Verh. 1862, pag. 37, P1. XVIII, fig. 
35. Arct. Diat. pag 86). 
N. Sigma var. valida Cl. & Grun. (Van Heurck Syn. Pl. 
LXV; fig. 5), Bunetal 4;a5tr. 21 in:0jo4 mm. 
N. Sigma var. subrecta Grun. (Casp. Sea Alg. pag. 22). Ca- 
rinal puncta 8, strie 30 in 0,01 mm. 
N. Sigma var. Habirshawii Febiger (Cl. & Möll. Diat. No 
223) Puncta 6, strize 28 in 0;o1 mm. 
0 FSS NNE INNER EURO NN SUI 
