290 138 
Elliptice. 
133. N. (Diploneis) advena A. S. var. parca. A.S. Atl. tab. VII, 
figs. 20 —29. 
Found only in a sample from K Kt. 
Area: Campeachy Bay, North Sea, Creswell, Samoa. 
134. N. (Dipl) aestiva Donk. forma a. Perag. Diat. de Fr. tab. XX, 
fig. 12. 
KKt (1 sample). 
Area: Normandie, Colon, Singapore, Manilla. 
— — — forma %. Perag. l.c. fig. 13. 
KKt (1 sample). 
Area: West coast of Sweden, Normandie, Sumatra. 
135. N, (Dip) Cynthia A.S. A.S. Atl tab. VII. fig. 41. 
LN (1 sample). 
Area: coasts of Ireland, West Indies, Red Sea. 
The present form is rather small (L. 0,036), but does not belong to. 
Cleve’s forma minuta (Cl. Syn. I, p. 82). 
136. N. (Dipl.) fusea Greg. Perag. Diat. de Fr. tab. XX. fig. 6. 
Found only in a sample from kKt. 
Area: North Sea; Balearic Islands, Sumatra, Java. 
137. N. (Dipl) literalis Donk. var. subtilis A.S. Perag. Diat. de Fr. 
tab. XX, fig. 11. 
Found only in a sample from K Kt. 
Area: Arctic Ocean, Arctic America, West Indies, Adriatic. Port Jackson, 
Java, Tahiti. 
138. N. (Dipl) major Cl. V.H. Syn. Suppl. B, fig. 23. 
K Kt (4 samples). 
Area: Colon, Europe, Madagascar, Macassar, Sumatra, China, Japan, 
Australia. 
139. N. (Dipl.) nitescens Greg. A.S. Atl. tab. VII, figs. 33 & 38 and 
tab. VIII, fig. 14. 
KKm, KKt, LN (6 samples). 
Area: Campeachy Bay, Colon, Europe. Seychelles, Madagascar, Java, 
Sumbava, Singapore, Australia, Sandwich Islands, Samoa, Tahiti. 
140. N. (Dipl) notabilis Grev. forma gennina. A.S. Atl. tab. VII, 
figs, 46 --47. 
— — — forma expleta. A. 5S. l.c. fig. 49. 
