Hyperolius spinosus Buchholz & Peters in Peters, 1875: 208, pl. 1, fig. 3.

Syntypes.

ZMB 8359 and ZMB 59353-59355 (formerly part of ZMB 8359), “Cameruns” [Douala, Region Littoral, Cameroon], coll. Georg Anton Eugen Reichenow, don. Reinhold Wilhelm Buchholz (Fig. 9).

Present name.

Acanthixalus spinosus (Buchholz & Peters, 1875).

Remarks.

Depicted in in Nieden (1910b: 58, fig. 124), copied by Ahl (1931b: 446, fig. 310).

Type locality corrected to “Douala” by Frétey et al. (2014); for further information see also remarks on Hyperolis guttatus . Herrmann (1989: 13) reported two additional syntypes without inventory numbers in the collection of the Zoologisches Museum Greifswald (ZMG) from “Bonjongo” [Southwest Region, Cameroon], coll. Buchholz. However, although the collector is identical, the locality of the two ZMG specimens does not correspond to the type locality “Cameruns” [= part of the present Douala, see above] given by Peters (1875: 209), and thus the ZMG specimens should not be regarded as syntypes.