Landcare Research - Manaaki Whenua

Landcare-Research -Manaaki Whenua

Pinnularia chapmaniana Foged

Pinnularia chapmaniana; image by Cathy Kilroy (NIWA)

Type slide

Small stream near Lake Tuteneianga, North Island, New Zealand. Foged Collection, New Zealand No. 536/1966, Natural History Museum, Denmark.

Institution holding the type material


Known distribution

North Island, New Zealand.


Dedicated to the New Zealand biologist V. J. Chapman.


Linear-elliptical valves, 25-30 µm long and 8-10 µm broad. Straight raphe with terminal fissures and central nodules deflected in the same direction. Axial area lanceolate, central area a very broad transverse fascia. Transapical striae, 13-14 in 10 µm, radiate towards the middle of the valve, but convergent towards the apices.

Description reproduced with kind permission from Koeltz Scientific Books.


Images published online with kind permission of the Natural History Museum of Denmark.

Funding from TFBIS (Terrestrial and Freshwater Biodiversity Information System), administered by the New Zealand Department of Conservation, is gratefully acknowledged.


Foged N 1979. Diatoms in New Zealand, the North Island. A. R. Gantner Verlag KG, Vaduz. 130 p.