86 
PROCEEDINGS OF THE CALIFORNIA ACADEMY OF SCIENCES 
Series 4, Volume 65, Supplement II 
Global conservation status (lUCN): 
Least Concern. 
Global distribution: The species is 
known from Guinea to western Ivory Coast, 
south to north-central Cameroon, Republic of 
Congo and northern Angola. 
Ocurrences in Angola (Map 28): The 
species occurs in northern Angola. Bengo: 
“Cabiri” [-8.91667, 13.66667] (Ferreira 
1904:112). Malanje: “Duque de Braganga” 
[-9.10000, 15.95000] (Boulenger 1882:121). 
Undetermined Locality: “plateaus regions” 
(Cei 1977:17). 
Taxonomic and distributional notes: 
The taxonomy of Afrixalus fulvovittatus (Cope, 
1861) is still unresolved. Some authors, includ¬ 
ing Fretey et al. (2011), consider it a synonym 
of the broadly distributed Afrixalus quadrivit- Distribution Afrimlus fulvovittatus in Angola. 
tatus Werner, 1908, whereas others, such as Schiotz et al. (2013) and Frost (2016), consider this 
species to have a limited distribution in western Africa, including eastern Sierra Leone, southern 
Guinea, northern Liberia, and western Ivory Coast. This confusion, as well as the existence of other 
available names such as Afrixalus leptosomus (Peters, 1877), makes unclear the taxonomic status 
of specimens from Angola. A thorough taxonomic review incorporating genetic data from many 
populations across Central Africa is sorely needed. 
Afrixalus osorioi (Ferreira, 1906) 
Osorio’s Spiny Reed Frog 
Global conservation status (lUCN): 
Least Concern. 
Global distribution: The species is dis¬ 
tributed from west-central Angola northwards 
across much of the Congo Basin, western 
Kenya, and eastern Uganda. 
Ocurrences in Angola (Map 29): The 
species has only been recorded from its type 
locality “Quilombo” in Kwanza Norte 
Province, although is expected to be more 
widespread in the west-central plateaus of the 
country. Kwanza Norte: “Quilombo” 
Rappia osorioi Ferreira 1906:162, pi. 1. Syntypes: MHNFCP 017307 [3 speeimens] Ceriaeo et al. 
(2014a:22) (eolleetor F. Newton). Type loeality: “Quilombo” (Ferreira 1906:162) Kwanza Norte Provinee, 
Angola. 
Hyperolius osorioi: Noble (1924:153). 
Afrixalus osorioi: Perret (1976b:27), Cei (1977:17), 
Laurent (1982:24), Frost (1985:222, 2016), 
Sehiotz (1999:49), Channing (2001:140), Kohler 
et al. (2005:130), Fretey et al. (2011:28), Ceriaeo 
et al. (2014a:22). 
10 '^ 
IS'-S 
Map 29. Distribution of Afrixalus osorioi in Angola. 
