— 142 — 



Nav. Scopulorum Bréb. in craticular state = Climaconeis Lorenzii 

 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. 



Sériantes. 



156. \ bipunctata Grun.? Tab. nostr. II, fig. 30. Gnfr. V. H. Syn. 

 tab. XIII, fig. 7. 



L. 0,044 mm., b. 0,0072 mm. Striæ very fine. 



Valve linear with sligthly undulate margins, attenuated towards 

 the rounded apices. Striæ at a right angle to sagittal axis, apical 

 area narrow, in the middle a stauros by want of striæ. 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 N. 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. S. Atl. tab. L, 



figs. 38 & 40. 



KKm, KKt, KMn — GLt, LN (8 samples). 

 Area: seems to be widely distributed. 



— — var. bicuneata Grun. A. S. I.e., 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 Gleve. 



158. \ (Caloneis?) egena A. S. A. S. Atl. tab. CCXII, fig. 1. 



Solitary in a sample without habitat. 

 Area: Gampeachy Bay. 



Schizonema. 



159. \ (Schizonema) Smithii Ag. V. H. Syn. tab. XV, fig. 33. 

 KKt, LN (2 samples). 



Area: Europe, Black Sea, Caspian Sea, East Gape, Tasmania. 



