Neidium affine (affinis) f. pygmaea (Mayer) F.W. Mills 1934, p. 1185
as Neidium affine (affinis) var. genuina f. pygmaea
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| Basionym | Neidium affine (affinis) var. amphirhynchus f. pygmaea Mayer |
| Published in | Mills, F.W. 1934 [ref. 006148]. An index to the genera and species of the diatomaceae and their synonyms. 1816-1932. Part 16 (Na-Ni). Wheldon & Wesley, Limited. London. pp. 1162-1240. |
| Type | | INA card not found. Click here to check this name in the INA website. |
| Collector | | Assessment of record accuracy | uncertain/not verified |