PLATE III - PENNATE DIATOMS
Fig. 1: Pleurosigma naviculaceum Brebisson; Hauraki Gulf. Fig. 2: Asterionella japonica Cleve; Lyttelton. Fig. 3: Pleurosigma formosum W. Smith; Hauraki Gulf. Fig. 4: Grammatophora marina (Lyngbye) Kutzing; Port Chalmers. Fig. 5: Achnanthes longipes Agardh; Cape Campbell. Fig. 6; Amphora chinensis A. Schmidt: Hauraki Gulf. Fig. 7: Nitzschia seriata Cleve; Castle Point. Fig. 8: Nitzschia closterium (Ehrenberg) W. Smith; Hauraki Gulf. Fig. 9: Thalassiothrix nitzschoides Grunow; Hauraki Gulf. Fig. 10; Surirella gemma Ehrenberg; Hauraki Gulf.