PLATE V. 



"/. 



Cyrabella inelegans Cl. — Pitt River 



C. Stuxber^ii Cl. — .lenissey, i""*/, 

 4. C. Jordani Geun. — Otago, New Zealand, '""V, 



Navicula Lunula CL. — Java, i"""/, . 



7. Gomphonema Berggrenii Gl. — New Zealand, '•""'/, . 



G. validum Cl. var. elongata Cl. — Demerara, """/i 



G. validum Cl. — Demerara, •'""/i ■ ■ ■ ... 



G. oxycephalum Cl. — Demerara, °'*''/] . ... 



12. G. Salinarum PANT. — Kiigen, i""'/! . . . 



G. ventricosum var. maxima Cl. — Pitt River, lo""/, 



Navicula Bacillum Ehb. var. lepida Gkun. — Lojo Finland, """/j 



N. auklandica Grun. — Port Jackson, ^"'"'/^ 



N. inelegens GROVE & StuRT var. Oamaru, ^""/j 



N. gibbula Cl. — Spitsbergen, ^'">'>/\ 



N. Lundstroraii var. Frieseana GRUN. — Finmark, looo/j . 



N. Lambda Cl. — Demerara, i"""/, ... 



N. monmouthiana Grun. — Monmouth, '"""/i • ■ 



N. Kappa Cl. — Oamaru, '""V, . . 



N. lota Cl. — Madagascar, -'""/i ■ 



» » » (structure) i^^o^^ 



definita Grovb & Sturt var. intermedia Cl 



N. 



N. obliqua Greg. — Windermere, '"•"•/, . . . 



N. fallax Cl. — Oamaru, ^o"/, 



Stenoneis inconspicua GREG. — Balearic Islands, wooy^ 

 Frustulia vulgaris var. asyrametrica Cl. — Newark, ^""/j 



Navicula Beta Cl. — Japan, ""'Vj 



Dietyoneis snbconstricta Cl. — Madagascar, """/, . . . 

 D. jamaicensis Grev. — Alexandria . . . . 

 D. Thumii Cl. — China, ^oo/^ ... 



D. naviculacea Cl. — Pensacola, "'"/, 



D. jamaicensis var. gigantea Cl. — Oamaru, ^""/i • • ■ 

 » » » » (structure) '•wy^ 



Oamaru, ^oo/^ . 

 (structure) i"""/, 



Page, 

 168. 

 173. 

 169. 

 Part II. 

 185. 

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 187. 

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 187. 

 137. 

 156. 

 155. 

 140. 

 140. 

 136. 

 134. 

 134. 

 134. 



135. 



130. 

 135. 

 124. 

 122. 

 135. 



31. 



30. 



31. 



30. 



30. 



