Correction to ‘The role of climatic and geological events in generating diversity in Ethiopian grass frogs (genus Ptychadena)’

[This corrects the article DOI: 10.1098/rsos.170021.].


Introduction
This correction is to fulfil the requirements of the International Commission on Zoological Nomenclature (ICZN) code criterion for the online-only publication of a new species name. In order for the five described Ptychadena species to be valid, the ICZN requires that the publication containing the species description be registered on ZooBank at the time of publication and that the ZooBank number appear in the publication, along with the species description. Below, we give the ZooBank LSID number for the article and for each of the described species, along with the taxonomic section of the original article.

ZooBank LSIDs
Original publication (Smith et  Diagnosis: This species includes all populations and individuals that cluster with P.cf. sp. Gambela 1 used in this study with strong support in the coalescent species model. This species can be distinguished from all other similar or related taxa by the following characters in combination: P. baroensis is a moderately large Ptychadena with males known to reach an s.v.l. of 47.8 mm. The dorsum is brown to tannish red, may have spots and is covered by a series of longitudinal skin ridges that are often indistinct or broken. The triangular patch on the snout is less pronounced than that of P. anchieta sensu stricto, which in Ethiopia is only known from lowlands east of the GRV. Webbing on the hind feet is extensive with usually only two phalanges free on the longest toe. The back of the thigh is often marked with yellow and black longitudinal bands and the ventral side of the body is white to pale yellow.
Distribution: Ptychadena baroensis is known to occur in humid grasslands and marshes near permanent water, particularly tributaries of the White Nile, in lowlands west of the GRV in Ethiopia; but may be more widespread into neighbouring countries.
Etymology: This species is named after the Baro River, a tributary of the White Nile, on the banks of which the type specimen was collected.
Ptychadena nuerensis sp. nov. Diagnosis: This species includes all populations and individuals that cluster with P.sp. used in this study with strong support in the coalescent species model. This species can be distinguished from all other similar or related taxa by the following characters in combination: P. nuerensis is a moderately large Ptychadena with males known to reach an s.v.l. of 41.6 mm. The dorsum is brown to brick red, may have spots, usually possesses a cream or yellow vertebral band and is covered by a series of longitudinal skin ridges that are often indistinct or broken. Webbing on the hind feet is moderate with at least two to three phalanges free on the longest toe. The back of the thigh is mottled and marked with yellow and black longitudinal bands and the ventral side of the body is white to pale yellow. The dorsal side of the thighs is typically boldly marked with dark crossbars.

Holotype
Distribution: Ptychadena nuerensis is known to occupy lowland savannahs, particularly at the margins of permanent water, west of the GRV in Ethiopia; but may be more widespread into neighbouring countries.
Etymology: This species is named in honour of the Nuer Tribe of South Sudan and western Ethiopia, including the type locality of Telouse, Gambela, for their enthusiasm and support of TJC during his fieldwork in their lands.
(ii) Highland taxa-Ptychadena neumanni species complex. These taxa are a group of highly morphologically variable and similar species that can be identified in the field according to their distribution and ecology ([1], Diagnosis: This species includes all populations and individuals that cluster with P.cf. neumanni 3 used in this study with strong support in the coalescent species model. This species can be distinguished from all other similar or related taxa by the following characters in combination: P. levenorum is a mediumsized frog with males known to reach an s.v.l. of 31.9 mm. The dorsum is tan to olive greenish, often with a vertebral band or thin line that may be cream, yellow, green or tan. Several longitudinal ridges that