Treron calva granviki Grote, 1924: 102

Frahnert, Sylke, Turner, Donald A. & Bracker, Cordula, 2023, Type specimens and type localities of birds (Aves) collected by Gustav Adolf Fischer (1848 - 1886) in East Africa, Zootaxa 5334 (1), pp. 1-84 : 12

Treron calva granviki Grote, 1924: 102 .

Now: Treron calvus gibberifrons ( Madarász, 1915) . See White (1965); but see also Peters (37: 21).

Holotype: ZMB 50.175 (Conrads no. 99), skin, male, collected by H.A. Conrads on Ukerewe Island, 27.06.[1908].

Paratype: ZMB 2000.13398 (Conrads no. 102), skin, female, collected by H.A. Conrads on Ukerewe Island, 30.06.[1908] .

Paratype: ZMB 2000.13392 (Conrads no. 101), skin, male, collected by H.A. Conrads on Ukerewe Island, 30.06.[1908] .

Paratype: ZMB 2002.369 (Conrads no. 72), skin, male, collected by H.A. Conrads on Ukerewe Island, 20.06.[1908] .

Paratype: ZMB 2002.370 (Conrads no. 69), skin, male, collected by H.A. Conrads on Ukerewe Island, 20.06.[1908] .

Paratype: ZMB 2002.371 (Conrads no. 71), skin, female, collected by H.A. Conrads on Ukerewe Island, 20.06.[1908] .

Paratype: ZMB 2002.372 (Conrads no. 86), skin, male, collected by H.A. Conrads on Ukerewe Island, 24.06.[1908] .

Paratype: ZMB 2002.373 , skin, collected by H.A. Conrads on Ukerewe Island, 1908 .

Paratype: ZMB 2002.374 skin, collected by H.A. Conrads on Ukerewe Island, 1908 .

Paratype: ZMB 2002.375 , skin, female, collected by W.L.H. von der Marwitz at Mkalama, 10.05.[1904] .

Paratype: ZMB 2002.376 , skin, female, collected by W.L.H. von der Marwitz on the “Wembere-Steppe” (Wembere Plain), [1903–1905] .

Paratype: ZMB 2002.377 (Fischer no. 187), skin, male, collected by G.A. Fischer at “Kagehi”, 06.12.[1885] .

Type locality: “ Ukerewe-Insel” [ Ukerewe Island , Mara Region, Tanzania] as the locality of the holotype .

Remarks: In the original description, a holotype was chosen and characterized by the collecting data. The paratypes were given with collecting dates. Among the paratypes is one Fischer specimen. One of the specimens collected by Conrads was determined as Treron calva brevicera Hartert & Goodson (“Strichvogel aus dem Osten”) by Grote (1924). As they all have the same locality and all are recognized as gibberifrons today it was not possible to identify that individual specimen. The name of the subspecies honors the Swedish collector Hugo Granvik (1889– 1965) for his research on the East African avifauna.