Bivalvia | ... | Hyrioidea | Hyriidae | Hyriinae | Rhipidodontini | Diplodon rhombeus

nominal species Diplodon (Diplodon) besckeanus nordestinus Haas, 1938

image of type lot

Diplodon (Diplodon) besckeanus nordestinus Haas, 1938 = Diplodon rhombeus

(intro'd as intra-sp. of Unio besckeanus Dunker, 1849)
Haas, 1938. Arch. Moll. 70: 46, Abb. 1-3.
HOLOTYPE SMF_24362, Rio Sao Francisco, bei Jatoba, Staat Pernambuco, Bras.

Taxonomic Opinions

+ Diplodon rhombeus Spix, 1827 — Nagel, 2025: 208, fig. 226.

holotype SMF 24362/1 — Brazil, “Rio São Francisco bei Jatobá, Staat Pernambuco” [09°11’S 038°16’W] (coll. F. Haas ex Comissão Técnica de Piscicultura do Noroeste Brasil, leg. 1933)

paratype SMF 24363/1

paratypes SMF 370341/4 (ex SMF 24363)

paratypes SMF 24364/1, 5v — “Rio Tocantins, Amazons-Nebenfluß bei Cametá, Staat Para” [02°15’S 049°30’W]

+ Rhipidodonta rhombea (Wagner, 1827) — Simone, 2006: 270.

= Diplodon (s.s.) besckeanus nordestinus Haas — Haas, 1969: 517.

+ Diplodon rhombeus (Wagner in Spix, 1827) — Parodiz, 1968: 8.

= Diplodon (s.s.) besckeanus nordestinus F. Haas, 1938 — Morretes, 1949: 19.