(Kützing) Round and Bukhtiyarova 1996 Category: Monoraphid
BASIONYM: Achnanthidium delicatulum
SEM scalebar = 5 µm
Site ID: ANSP NRSA0167
Site Name: Spring Creek, ND
Latitude: 47.2557
Longitude: -101.8082
Caption: External view of raphe valve
Contributor: Marina Potapova - December 2010