234. A. turgida Greg. A. S. Atl. tab. XXV, figs. 24-25. 

 KKm, KKt, LN, s. 1. (9 samples). 



Area: Europe, Red Sea, Java, Madagascar, Macassar, Labuan, New Zealand. 



Epithemia Bréb. 



235. E. Musculus Ktz. Perag. Diat. de Fr. tab. LXXVII, fig. 6 — 10. 

 KKm. KKt, KMn — GLt, LN, s.l. (10 samples). 



— — var. gibberula Ktz. Perag. I.e. figs. 18 — 22. 

 Mixed with the main species. 



Area: the main species: Europe (de Toni), Rio Grande, Java, Samoa, 

 var. gibberula: America, Europe, Java. 



Nitzschieae. 

 Bacillaria Gm el. 



236. B. paradoxa Gmel. V. H. Syn. tab. LXI, fig. 6 = Nitzschia 

 paradoxa Gr un. 



KKt (2 samples). 



Area: Gape Horn, Europe, Madagascar, Java. 



Nitzschia Hassal. 

 Panduriformes Gr un. 



237. N. constricta (Greg.) Grun. var. bombiformis Grun. V. H. Syn. 

 tab. LVIII, fig. 9. 



L. 0,042 mm., b. 0,016 mm., at the constriction 0,012 mm. Striæ 

 11 in 0,oi mm. 



Solitary in a sample without habitat. 



The present form probably is identical with Gru now 's „kleine 

 etwas weniger eingeschnürte Form bei Yokohama" (Gl. & Grun. Are. Diat. 

 p. 71). 



238. N. panduriformis Greg. V. H. Syn. tab. LVIII, fig. 1. Perag. 

 Diat. de Fr. tab. LXX, flg. 5. 



KKm, KKt, KCn, KMn— GLt, LN (12 samples). 



— — var. minor Grun. V. H. 1. c. fig. 4. 



Mixed with the main species. 



Area: Gape Horn, Europe, East Indies, Malay Archipelago, Samoa, Tahiti, 

 Hawaii. 



% panduriformis Greg. var. interrupta Östr. n. var. Tab. nostr. II, fig. 29. 



L. 0,038 mm., b. 0,018 mm., at the constriction 0,014 mm. Garinal 

 puncta 11 in 0,oi mm. Striæ 22 in 0,01 mm. 



