MARQUES ET AL.; AMPHIBIANS AND TERRESTRIAL REPTILES OF ANGOLA 
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[-9.33333,14.90000] (Ferreira 1906:162; Perret I976b:27; Laurent 1982:24; Frost 1985:222,2016; 
Ceriaco et al. 20I4a:22; Frost 2016). 
Taxonomic and distributional notes: Ferreira (1906) described Rappia osorioi based on 
three specimens, from “Quilombo” collected by Francisco Newton. Laurent (1982) discussed pat¬ 
terns of morphological variation in A. osorioi and the minor phenotypic differences from two other 
Congo Basin species, Afrixalus equatorialis (Laurent, 1941) Afrixalus leucostictus (Laurent, 
1950). In his discussion of the variation in color and pattern of A. osorioi, Laurent noted that “la 
phenotype represente par I’holotype” has an elongate rectangular and dark scapular spot. Howev¬ 
er, the citation provided in this discussion, as well as the list of specimens examined, indicates Lau¬ 
rent was, in fact, referring to the holotype of Megalixalus fornasinii congicus Laurent, 1941 and 
not the type material described by Ferreira (1906). Perret (1976b) listed three type specimens in 
Museu do Porto lacking catalog numbers (one holotype and two paratypes) and followed Laurent 
in recognizing this taxon as conspecific withM / congicus (Ceriaco et al. 2014a). Channing (2001) 
provided two records without specific information that are probably based on museum specimens. 
Afrixalus quadrivittatus (Werner, 1908) Four-Lined Spiny Reed Frog 
Hyperolius leptosomus Peters 1877a:619, pi., figs. 5-5a. Holotype: ZMB 9175 (eolleetor Afrieanisehe 
Gesellsehaft) fide Bauer et al. (1995:44). Type loeality: “Chinehoxo (Westafrika)” (Peters 1877a:611), 
[= Chinehoxo] Cabinda Provinee, Angola. Synonymy with A. fulvovittatus (Werner, 1908) by Sehiotz 
(1975:78) and assigned by implieation to A. ''quadrivittatus'" by Piekersgill (2007b:23). 
Megalixus leptosomus quadrivittatus Werner 1908 “1907”: 1900, pi. 4, fig. 13. Syntypes: NHMW 3723 (eol¬ 
leetor F. Werner) fide Haupl et al. (1994:29). Type loeality: “On the Nile near Khor Attar, Sudan” (Wern¬ 
er 1908 “1907”: 1900), Sudan. 
Megalixus leptosomus: Boulenger (1882:129). 
Hyperolius leptosomus quadrivittatus: Werner (1908 “1907”: 1900). 
Afrixalus fiuvovittatus leptosomus: Loveridge (1957:322). 
Afrixalus dorsalis leptosomus: Perret (1976b:19), Laurent (1982:31), Amiet (2012:71). 
Afrixalus quadrivittatus: Largen (2001:357), Kolher et al. (2005:131), Frost (2016). 
Afrixalus “quadrivittatus”: Piekersgill (2007b:23), Frost (2016). 
Global conservation status (lUCN): 
Least Concern. 
Global distribution: The species is 
known from eastern Nigeria to western 
Ethiopia, southwards through western Tanzania 
and into northern Angola. 
Ocurrences in Angola (Map 30): The 
species occurs in “Chinehoxo” in the Cabinda 
enclave, but it is also presumed to occur in 
northern Angola. Cabinda: “Chinehoxo” 
[-5.10000, 12.10000] (Peters 1877a:619; 
Boulenger 1882:129; Loveridge 1957:322; 
Perret 1976b:19; Laurent 1982:31; Kolher et 
al. 2005:132; Amiet 2012:71). 
Taxonomic and distributional notes: 
The taxonomy and distribution of^. quadrivit¬ 
tatus remains controversial. It was removed 
from synonymy of Afrixalus fulvovittatus 
(Cope, 1861) by Sehiotz (1975) and Kolher et 
12°E I6'E 20°E :4'>E 
Map 30. Distribution of Afrixalus quadrivittatus in 
Angola. 
