| Catalogue of Diatom Names, On-Line Version, Updated 19 Sep 2011 |
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| Fragilaria ulna var. amphyrhynchus (Grunow) Herbst & Maidana 1989, p. 212 | |||
| Basionym | Synedra ulna var. amphyrhynchus Grunow | ||
| Published in | Herbst, N. and Maidana, N.I. 1989 [ref. 008341]. Diatoms of Chaco (Republica Argentina): 1. Nova Hedwigia 49(1-2):207-232. | ||
| Type | Click here to view INA card. Click here to check this name in the INA website. | ||
| Collector | Assessment of record accuracy | uncertain/not verified | |