294, 142 
Nav. Scopulorwn Bréb. in craticular state = Climaconeis Lorenzi 
Grun. (Wien. Akad. 1862, tab. VIII, fig. 7) I have met with in a sample 
from TK. It has hitherto been found in Honduras, Adriatic, Java, Queens- 
land and New Caledonia. 
Seriantes. 
156. N. bipunetata Grun.? Tab. nostr. Il, fig. 30. Cnfr. V.H. Syn. 
tab. XII, fig. 7. 
L. 0,044 mm., b. 0,0072 mm. Strize very fine. 
Valve linear with sligthly undulate margins, attenuated towards 
the rounded apices. Strie at a right angle to sagittal axis, apical 
area narrow, in the middle a stauros by want of strie. Central 
pores very evident. 
Found only in a sample from LN. 
Owing to the very conspicuous central pores and the slightly undulate 
outline I have referred this form to NV. bipunctata Grun., which it resembles 
in its whole habit; however I have not been able to recognize the longi- 
tudinal striation of the figure quoted above. 
Area: no locality has been given. 
Lineares. 
157. N, (Caloneis) Liber W. Sm. var. linearis Grun. A. 5S. Atl. tab. L, 
figs. 38 & 40. 
KKm, KKt, KMn—CLt, LN (8 samples). 
Area: seems to be widely distributed. 
— — var. bieuneata Grun. A.S. l.c., figs. 22—24. 
KKt 2 (samples). 
Area: Colon, Porto Seguro, North Sea, Seychelles, Sumatra, Samoa. 
In a sample from LN I found a form agreeing with A.S. Atl. tab. L, 
fig. 36 (from Sorrento), which is referred by A.S. with doubt to Nav. 
maxima = Nav. (Calon.) Liber W. Sm. genuina Cleve. 
158. N. (Caloneis?) egena A.S. A.S. Atl. tab. CCXIL, fig. 1. 
Solitary in a sample without habitat. 
Area: Gampeachy Bay. 
Schizonema. 
159. N. (Schizonema) Smithii Ag. V.H. Syn. tab. XV, fig. 33. 
Kkt, LN (2 samples). 
Area: Europe, Black Sea, Caspian Sea, East Cape, Tasmania. 
