302 
PROCEEDINGS OF THE CALIFORNIA ACADEMY OF SCIENCES 
Series 4, Volume 65, Supplement II 
Taxonomic and distributional notes: Most authors considered the holotype of this taxon to 
be lost or unidentified (e.g., McDiarmid et al. 1999; Bauer et al. 2002), however, ZMB 21691, 
although not marked as a type in the ZMB catalogue, is fully consistent with the description. Adal- 
steinsson et al. (2009) found deep genetic divergence between Leptotyphlops occidentalis and other 
species of Leptotyphlops. On this basis and on evidence from shared morphology they designated 
a new genus, Namibiana for members of the Leptotyphlops rostrata (Bocage, 1866) group {sensu 
Broadley and Broadley 1999), to which L. occidentalis belongs. 
Namibiana latifrons (Sternfeld, 1908) Benguela Thread Snake 
Glaucoma latifrons Sternfeld 1908:93. Leetotype: BMNH 64.6.14.5 (eolleetor J.J. Monteiro) designated by 
Broadley and Watson (1976). Type loeality: “Benguela”, Benguela Provinee, Angola. 
Stenostoma nigricans (part): Boeage (1867b:224). 
Glaucoma scutifrons (part): Boulenger (1893:68). 
Stenostoma scutifrons (part): Peters (1865:262), Boeage (1895a:71). See notes below regarding Peters’ (1865) 
applieation of names. 
St{enostoma\ scutatum Peters (1865:262), unavailable name (see notes below). 
Glaucoma latifrons'. Monard (1937b: 106). 
Leptotyphlops seutifrons (part): Bauer et al. (1995:77, 2002:169), MeDiarmid et al. (1999:41). 
Leptotyphlops latifrons'. Broadley and Broadley (1999:14). 
Namibiana latifrons'. Adalsteinsson et al. (2009:13), Wallaeh et al. (2014:464). 
Peters (1854) described Stenostoma scutifrons 
from the type locality “Sena” in Mozambique. 
Boulenger (1893) later allocated two sped- 
mens from “Benguella” to this taxon. Sternfeld Distribution ^fNamihima lalifmns in Angola. 
(1908) recognized that the east and west African forms were distinctive from one another and pro¬ 
posed the name latifrons for the Angolan material. Boundy (2014) made the case that Peters him¬ 
self had validly proposed the name Stenostoma scutatum Peters (1865) for the same Benguela 
material examined by Boulenger (1893), despite the fact that Peters ultimately concluded that the 
Mozambiquan and Angolan specimens were conspecific and assignable to S. scutifrons. However, 
because Peters’ name had not been used subsequently and Glaucoma latifrons Sternfeld, 1908 had 
Global conservation status (lUCN): Not Evaluated. 
Global distribution: The species is known from western Angola and southwestern Demo¬ 
cratic Republic of Congo (Bas-Congo). 
Ocurrences in Angola (Map 262): The 
species occurs in western Angola. Kwanza 
Sul: “Novo Redondo” [-11.20000, 13.85000] 
(Bocage 1867b:224; 1895a:71; Monard 
1937b: 106). Benguela: “Lobito Bay” 
[-12.35000, 13.55000] (Broadley and 
Broadley 1999:14); “Catumbella” [-12.43333, 
13.55000] (Bocage 1867b:224; 1895a:71; 
Monard 1937b: 106; Broadley and Broadley 
1999:14); “Benguella” [-12.58333, 13.41667] 
(Peters 1865:621, Boulenger 1893:68; Bauer et 
al. 1995:77; Broadley and Broadley 1999:14; 
Wallaeh et al. 2014:464). 
Taxonomic and distributional notes: 
