Achnanthes crosbyana Foged
Type slideLagoon on the Coromandel Peninsula, North Island, New Zealand. Foged Collection, New Zealand No. 487/1966, Natural History Museum, Denmark.
Institution holding the type material
Known distributionCoromandel, North Island, New Zealand.
EtymologyDedicated to the New Zealand biologist L. H. Crosby.
Valves broadly lanceolate with rostrate apices, 20-45 µm long and 8-14 µm broad. The raphe valve has a straight raphe, a narrow lanceolate axial area, and a fairly broad asymmetrical central area. 12-14 radiate transapical striae in 10 µm. The rapheless valve has a narrow lanceolate axial area, in the middle of the valve somewhat dilated in an asymmetrical central area. 10-14 radiate transapical striae in 10 µm.
Description reproduced with kind permission from Koeltz Scientific Books.
Images displayed online with kind permission of the Natural History Museum of Denmark.