133 285 
104. €. Seutellam Ehb. var. parva Grun. Perag. Diat. de Fr. tab. IV, 
fig. 3. 
KKt, LN, s.1. (15 samples), 
Area: the main species: ubiquitous. var. parva: Baltic, East Cape, 
Adriatic (Cleve), North Sea, Belgium, North coast of France, Gulf of Gascony, 
Rousillon. 
105. ©. (Orthoneis) aspera Perag. Perag. Diat. d. Fr. p. 29, tab. V, 
fig. 13. 
K Km, KKt (5 samples). 
The striz along the raphe mentioned and figured by Peragallo l.c. 
are not so conspicuous in my specimens as in the figure by Peragallo 
quoted above; but otherwise, i. e. as to the strie and the character of 
raphe, they agree well with this figure. 
Area: Villefranche (,trés rare“ Perag.), Madagascar, Samoa. 
106. ¢€. (Orthon.) binotata Grun. Perag. Diat. de Fr. tab. V, fig. 2. 
KKm, KKt, KMn—CLt, KCg—KKm, LN, s.1. (22 samples). 
Area: the coasts of Europe, West Indies, Madeira, Red Sea, Nicobar Islands, 
Island of Rhea, Madagascar, Cape of good Hope, Malay Archipelago, Australia, 
Tahiti. 
107. €. (Orthon.) Clevei Grun. V.H. Syn. tab. XXVIII, fig. 4. 
Found only in a sample from K Kt. 
Area: Barbadoes, Seychelles, Mauritius. Madagascar, Indian Ocean, Samoa. 
108. €.(Orthon.) fimbriata Btw. Perag. Diat. de Fr., tab. V, figs. 3—4. 
KKm, KKt, KM—CLt, LN (15 samples). 
Area: Honduras, Brezil, Mediterranean, Adriatic, Madagascar, Sumbava, 
Japan, China, Australia, Samoa, Tahiti, Hawaii. 
109. €. (Orthon.) Horwathiana Grun. A. S. Atlas tab. CLXXXVIII, 
fig. 41. 
K Kt (2 samples). 
Area: Honduras, Villefranche, Red Sea, Madagascar, Java, Bali Sound, 
Samoa, Tahiti. 
Naviculoideae. 
Navicula Bory. 
Pinnularice. 
‘110. N. (Pinnularia) bistriata Leud.-Fortm. Perag. Diat. de Fr. 
tab. XI, fig. 14. 
Solitary in a sample from KKt. 
Area: Mediterranean, Ceylon, Labuan. 
