Diversity of the southern Africa Lacustricola Myers, 1924 and redescription of Lacustricola johnstoni (Günther, 1894) and Lacustricola myaposae (Boulenger, 1908) (Cyprinodontiformes, Procatopodidae)

By

Bragança, Pedro H. N.
Van Zeeventer, Ryan
Bills, Ian
Tweddle, Denis
Chakona, Albert

Type

Article

Date of Publication

2020

Original Publication

ZooKeys

Volume

923

Pages

91--113

Subjects

African lampeyes , diversity , DNA barcoding , Fish , freshwater , taxonomy , topminnows

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.923.48420

 

Abstract

Through the analysis of a comprehensive database of COI sequences, with the sequencing of 48 specimens, a first insight into the genetic diversity, distribution and relationships between the southern Africa “Lacustricola” species is presented. Species from “Lacustricola” occur mainly in freshwater systems within the arid savanna, and are considered to be widely distributed in southern Africa, but most of them are data deficient taxa. Two species are redescribed, “Lacustricola”johnstoni(Günther, 1894) and “Lacustricola”myaposae(Boulenger, 1908), based on specimens collected at their respective type localities. Detailed osteological and life colouration information is presented for the first time. “Lacustricola”johnstoniwas described from the Upper Shire River in Mangochi, Lake Malawi but is herein considered as widespread in the Okavango, Zambezi, southern Africa east coastal drainages and the Bangweulu in the Congo System. A sympatric similar species occurring in the Okavango is also identified. “Lacustricola”myaposae(Boulenger, 1908), was described from the Nseleni River in KwaZulu-Natal Province, South Africa and is herein considered to be endemic to the small coastal river drainages within this region. Lectotypes for both “L.”johnstoniand “L.”myaposaeare designated. A new species from the Lualaba River in the Congo System, sister to “L.”macrurusis identified, and the deep bodied “L.”jubbiis considered sister taxon to a clade including “L.”johnstoniand “L.”myaposae.