Pinnularia opouraensis Foged
Type slideSwamp near Lake Opoura, North Island, New Zealand. Foged Collection, New Zealand No. 527/1966, Natural History Museum, Denmark.
Institution holding the type material
Known distributionNorth Island, New Zealand.
EtymologyFrom Lake Opoura.
The valves are elliptic-lanceolate with rather narrowly protracted rounded apices, 20-25 µm long and 7 µm broad. The axial area is broadly lanceolate towards the central area that is broad and dilated to the margins of the valve. The raphe is straight with dense central pores. The transapical striae, 12-14 in 10 µm, are 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.
1. Foged N 1979. Diatoms in New Zealand, the North Island. A. R. Gantner Verlag KG, Vaduz. 130 p.