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Hippodonta hungarica differs from H. capitata by elliptical-lanceolate valves with rounded ends. It is somewhat similar in valve outline to H. capitata subsp. iberoamericana, which has more protracted valve ends and, on average, a higher stria density and more narrow striae.

LM scalebar = 10 µm
Hippodonta hungarica LM2 Hippodonta hungarica LM1 Gs134565 1 Hippodonta hungarica LM4 Hippodonta hungarica LM3 Hippodonta hungarica LM5 Gs134565 3
Length Range
10-25 µm
Width Range
4.2-6.5 µm
Striae in 10 µm
8-11

Hippodonta capitata

(Ehrenb.) Lange-Bert., Metzeltin and Witkowski 1996

Gs138229 1 Gs138229 4 Gs138229 2 Gs138229 6 Gs138229 3 Hippodonta capitata LM1 Gs138229 5A
Length Range
12-28 µm
Width Range
4.9-8.5 µm
Striae in 10 µm
8-11

Hippodonta capitata subsp. iberoamericana

Metzeltin, Lange-Bert. and García-Rodríguez 2005

Gs127032  Hiiber 4 Gs127032  Hiiber 7 Gs127032  Hiiber 1 Gs127032  Hiiber 8 Gs127032  Hiiber 3 Gs127032  Hiiber 5 Gs127032  Hiiber 6
Length Range
16-22 µm
Width Range
4.5-5.4 µm
Striae in 10 µm
10-11