VEGA- EX FED I TIO S ENS V E TEXS E A I'L IG A A II L E TE S. 



501 



S. formosa Hantzsch (Ost. Ind. Arch. Diat. pag. 19, PL V, 



fig. 3). ^ 



Fragilaria? pacifica Grim. (Van Ilourck Syn. PI. XLIV, 

 fig. 21—22). 



Fr? Sclncarzli Grun. (Van Heurck. 1. c. fig. 24). 



Llcniophora Lijnghyd (Kutz) Grun. (Van Heurck Hyn. PI. 

 XLVII, tig. IG) Length of the valve 0,og5, breadth 0,oo8 mm. 

 Stria) at the base 12, in the summit 15 in 0,oi mm. 



Grammatophora oceanica Ebb. Several varieties were found 

 in the Labuan material, among them the var. intermedia Grun. 

 (Van Heurck Syn. PI. LIII, fig. 15) with 26 stride in 0,oi mm. 



Gr. maxima var. Trinitatls Grun. (Bot. Centr. Bl. 1881, Bd 

 VII, Beil. pag. 8) Length 0,075, breadth 0,oo8 mm. Stria; 30 

 in 0,01 mm. 



G. tindulata var. gihha Grun. (Van Heurck Syn. XIII B, 

 fig. 17). 



Striatella interrupta Ebb. (Van Heurck Syn. PI. LIV, fig. 8). 



BhaMonema adriaticum Kiitz. 



Climacosphenia elongata Bail (Smith's Contr. VII, fig. 10 — 11) 

 Striae 21 in 0,oi mm. 



Hantzschia ampltloxys var. horneensis CI. Length 0,i mm. 

 Stria? 9 in 0,oi mm., composed of distinct puncta; carinal 

 puncta 3 in 0,oi mm. 



H. virgata Roper. (Van Heurck Syn. PI. LVI, fig. 12). 



Nifzschia (punctata var.?) dihtviana CI. (Schr. der phys. 

 Oek. Ges. zu Konigsb. Bd XXII, pag. 139) Lanceolate (of the 

 same outline as Nitz. lanceola Grun.) one half of the valve 

 not on the same plane as the other. Striae, composed of dis- 

 tinct and separate puncta, 11 in 0,oi mm. carinal puncta in- 

 distinct. Length 0,o35 mm. Breadth 0,oo8 mm. PI. HI, fig. 67. 



I found this form first in diluvial clay from East Prussia. 



N. panduriformis Greg. (Grun. Arct. Diat. pag. 71). Length 

 0,075 mm. Breadth 0,o2 mm. Stria? 17 in 0,oi mm. 



N. Jelinechii Grun. (Arct. Diat. pag. 74). 



N. marginidata Grun. (Arct. Diat. pag. 72). Puncta 10 — 13 

 in 0,01 mm. Stria) 20 — 25 in 0,oi mm. Length 0,066 mm. 

 Breadth 0,oi6 mm. Sides of the valve almost parallel. 



N. (vivax var.?) fliiminensis Grun. (Arct. Diat. pag. 86. 

 Van Heurck Syn. PL LXII, fig. 3). 



N. (sigma var.?) valida CI. & Grun. (Van Heurck Syn. PL 

 LXV, fig. 5). 



N. lahuensis CI. N. Sp. — Valve elongate; keel eccentric 

 Avith large and distant puncta, 4 — 5 in 0,oi mm., of which the 



