IMAGE OF

Ulnaria acus

(Kützing) Aboal 2003      Category: Araphid
BASIONYM: Synedra acus
SYNONYM(S): Synedra affinis var. arcus (Kützing) Grunow in Van Heurck 1881 | Synedra goulardi var. acus (Kützing) Frenguelli 1925 | Fragilaria ulna var. acus (Kützing) Lange-Bertalot 1980 

Tryblionella hungarica

 

Ulnaria contracta

LM scalebar = 10 µm

Slide Number: ILL 2015 Class Collection 2015-54

Site ID: ILL 2015 Class Collection 2015-54

Site Name: Missouri River, Yankton, Yankton County, South Dakota, USA

Latitude: 42.866025

Longitude: -97.394263

Caption: Girdle view

Contributor: David R.L. Burge | Irene Tunno | Mark Edlund - November 2016