scholarly journals Surveys of Afrotemperate forests yields two new freshwater crabs (Decapoda: Potamonautidae: Potamonautes MacLeay, 1838) from South Africa

2021 ◽  
Vol 782 ◽  
pp. 82-107
Author(s):  
Savel R Daniels ◽  
Aaron Barnes ◽  
Hannes Marais ◽  
Gavin Gouws
Keyword(s):  
South Africa ◽  
New Species ◽  
Novel Species ◽  
Sister Species ◽  
Freshwater Crab ◽  
Crab Species ◽  
Ecological Data ◽  
Mountainous Regions ◽  
Freshwater Crabs ◽  
Two New Species

Sampling of remote inland aquatic habitats in South Africa has constantly been yielding novel endemic freshwater crab species (Potamonautes MacLeay,1838). During the present study, we report on the discovery and description of two new freshwater crab species (Potamonautes baziya sp. nov., and P. mariepskoppie sp. nov.) from Afrotemperate forested mountain regions in the Eastern Cape and Mpumalanga provinces of South Africa, respectively. Phylogenetic evidence derived from DNA sequence data of three partial mitochondrial loci (12S rRNA, 16S rRNA and cytochrome oxidase subunit one, COI) corroborates the evolutionary distinction of the two novel species. In addition, morphological and ecological data for the two new species further delineate their evolutionary distinction from congeneric sister species. A comparison of the taxonomically important gonopods 1 and 2 and carapace features among the sister species and other known freshwater crabs of South Africa was further used to provide evidence for the distinction of the two novel species. The discovery of two new species suggest that remote mountainous areas or unsampled regions in South Africa likely harbor several novel species, reiterating a call to document aquatic inland biodiversity in forested and mountainous regions of the country.

Hidden in the highlands: the description and phylogenetic position of a novel endemic freshwater crab species (Potamonautidae : Potamonautes) from Zimbabwe

2013 ◽  
Vol 27 (5) ◽  
pp. 530 ◽  
Author(s):  
Ethel E. Phiri ◽  
Savel R. Daniels
Keyword(s):  
Southern Africa ◽  
Sequence Data ◽  
Phylogenetic Position ◽  
12S Rrna ◽  
Mountain Range ◽  
Freshwater Crab ◽  
Crab Species ◽  
Mountainous Regions ◽  
Freshwater Crabs ◽  
Mtdna Sequence

A recent sampling endeavour of freshwater crabs along the high-lying streams of the Nyanga mountain range in Mutare (Eastern Highlands, Zimbabwe) yielded a morphologically distinct, as yet undescribed species. The novel Zimbabwean species is compared to the 16 described species from southern Africa based on mtDNA sequence data derived from three partial gene sequences (12S rRNA, 16S rRNA and COI). The new Zimbabwean species was found to be a sister taxon to Potamonautes mulanjeensis. These two species are morphologically and genetically easily differentiated. The new species is described as Potamonautes mutareensis, sp. nov. and is compared morphologically to the known freshwater crab species of southern Africa. A dichotomous key to the four described freshwater crab species that occur in Zimbabwe is also provided. Our results suggest that species diversity and endemism of freshwater decapods and other habitat specialists is likely to be high in unsampled mountainous regions.

On two new species of the shrimp genus Salmoneus Holthuis, 1955 (Decapoda, Caridea, Alpheidae) from the tropical eastern Pacific

Zootaxa ◽  
2015 ◽  
Vol 3957 (5) ◽  
pp. 520 ◽  
Author(s):  
ARTHUR ANKER ◽  
JUAN FELIPE LAZARUS
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Morphological Characters ◽  
Sister Species ◽  
Eastern Pacific ◽  
Tropical Eastern Pacific ◽  
Ecological Data ◽  
Western Atlantic ◽  
Two New Species ◽  
Alpheid Shrimp

The present study deals two new alpheid shrimp species from the transisthmian Salmoneus ortmanni (Rankin, 1898) complex. Salmoneus alvarezi sp. nov. is described based on materials collected in Bahía Málaga, Colombia, and Punta Morales, Costa Rica, and is closely related to the western Atlantic S. ortmanni and S. wehrtmanni Anker, 2011. Salmoneus malagensis sp. nov. is described based on specimens from Bahía Málaga, Colombia, and beyond any doubts represents the eastern Pacific sister species of the western Atlantic S. carvachoi Anker, 2007. The two new species can be easily distinguished from each other by a number of morphological characters and colouration, and in addition appear to be ecologically separated. All previous records of S. ortmanni from the eastern Pacific are reassigned, some tentatively, to S. alvarezi sp. nov. based on description, illustrations or ecological data.

New combinations in Stenostelma (Apocynaceae—Asclepiadoideae) and two novel species from South Africa

Phytotaxa ◽  
2018 ◽  
Vol 361 (1) ◽  
pp. 41 ◽  
Author(s):  
STOFFEL P. BESTER ◽  
ASHLEY NICHOLAS
Keyword(s):  
South Africa ◽  
New Species ◽  
Novel Species ◽  
Red List ◽  
New Combinations ◽  
Two New Species ◽  
Conservation Assessments

Two new combinations are made for taxa that were previously attributed to the genus Schizoglossum and are now placed in the genus Stenostelma. Included is the typification of Stenostelma capense, S. carinatum, S. corniculatum, S. eustegioides and S. periglossoides. Two new species, Stenostelma ligulatum and S. urceolatum, both with restricted distributions, are described here. Preliminary conservation assessments (Red List status) for the newly described taxa are provided.

Two novel species of Sisyranthus (Apocynaceae—Ceropegieae) from South Africa

Phytotaxa ◽  
2020 ◽  
Vol 438 (1) ◽  
pp. 6-14
Author(s):  
KHANYISILE SHABANGU ◽  
STOFFEL P. BESTER ◽  
MICHELLE VAN DER BANK
Keyword(s):  
South Africa ◽  
New Species ◽  
New Taxa ◽  
Southern Africa ◽  
Novel Species ◽  
Conservation Status ◽  
Distribution Maps ◽  
Line Drawings ◽  
Two New Species ◽  
In The Wild

Sisyranthus species are cryptic in both their habit and small size of their flowers making them difficult to find in the wild. The genus was last revised in Flora Capensis (1908) and since then, two new species have been described. Currently it comprises 13 recognised species endemic to southern Africa. Many of these are range-restricted and poorly known. In this contribution the genus is further expanded by describing two novel species. Full descriptions, assessment of conservation status, distribution maps and line drawings of the new taxa are presented.

scholarly journals Two new species of Chaetocnema Stephens from South Africa (Coleoptera: Chrysomelidae, Galerucinae, Alticini)

2018 ◽  
pp. 11-18
Author(s):  
Maurizio Biondi ◽  
Paola D'Alessandro
Keyword(s):  
South Africa ◽  
New Species ◽  
Host Plant ◽  
Habitat Preference ◽  
Female Genitalia ◽  
Western Cape ◽  
Ecological Data ◽  
Western Cape Province ◽  
Male And Female ◽  
Two New Species

In this paper Chaetocnema adamastori sp. nov. and C. saldanhai sp. nov., both from Western Cape Province (Republic of South Africa), are described. The two new species are closely related with C. audisiana Biondi and C. capensis Bryant, respectively. Micrographs of diagnostic characters, including male and female genitalia, are supplied. Ecological data for each species, including habitat preference, host plant and phenology, are also reported.

scholarly journals The freshwater crabs of Ethiopia, northeastern Africa, with the description of a new Potamonautes cave species (Brachyura: Potamonautidae)

2012 ◽  
Vol 81 (4) ◽  
pp. 235-251 ◽  
Author(s):  
Neil Cumberlidge ◽  
Paul F. Clark
Keyword(s):  
New Species ◽  
Taxonomic Status ◽  
Valid Species ◽  
Freshwater Crab ◽  
Crab Species ◽  
Freshwater Crabs ◽  
Morphological Adaptations ◽  
Recent Collection ◽  
A New Species

A recent collection of freshwater potamonautid crabs from a newly-explored cave in Ethiopia included a new species of Potamonautes MacLeay, 1838, which is described. The new species is associated with caves but is not troglobitic because it has no special morphological adaptations for life in caves typical of other species of cave-dwelling freshwater crabs. The taxonomic status and biogeographic affinities of other Ethiopian freshwater crab species are discussed. Potamonautes antheus (Colosi, 1920) and P. ignestii (Parisi, 1923) are recognized as valid species, and a key to the species of the country is included. The addition of P. kundudo sp. nov. and the recognition of two previously suppressed taxa raises to six the number of freshwater crab taxa known to occur in Ethiopia.

Two new species of freshwater crabs of the genus Potamonautes MacLeay, 1838 (Decapoda: Brachyura: Potamonautidae) from the forests of KwaZulu-Natal, South Africa

2019 ◽  
Vol 39 (4) ◽  
pp. 426-435 ◽  
Author(s):  
Savel R Daniels ◽  
Theo Busschau ◽  
Neil Cumberlidge
Keyword(s):  
South Africa ◽  
New Species ◽  
Divergence Time ◽  
Time Estimation ◽  
12S Rrna ◽  
Divergence Time Estimation ◽  
Freshwater Crabs ◽  
Kwazulu Natal ◽  
Two New Species ◽  
Indigenous Forest

ABSTRACTRecent taxonomic studies of forest habitats in South Africa have revealed the presence of three new species of freshwater crabs, suggesting that decapod diversity within the indigenous forest biome remain poorly documented. Surveys of the freshwater crabs of north eastern KwaZulu-Natal province produced a number of specimens from Ntendeka Wilderness Area (Ngome forest) and Nkandla and Ngoye forests that proved to belong to two new species following morphological and molecular analysis (mtDNA sequencing of three loci, 12S rRNA, 16S rRNA and COI). Two undescribed species, P. ntendekaensis sp. nov. and P. ngoyensis sp. nov. are described. The divergence time estimation of the new phylogeny for eastern and southern African freshwater crabs is discussed to illuminate biogeographic patterning and to understand factors responsible for cladogenesis.

A new genus and four new species of Isometopinae (Hemiptera: Miridae) from South Africa

Zootaxa ◽  
2004 ◽  
Vol 728 (1) ◽  
pp. 1
Author(s):  
E. Akingbohungbe
Keyword(s):  
South Africa ◽  
New Species ◽  
New Genus ◽  
Two New Species

Namaquaropus niger gen nov. & sp.nov. is described from South Africa. In addition, two new species of the subgenus Jehania Distant of Isometopus Fieber (I. mirus sp. nov. and I. maculipennis sp. nov.), and Paloniella flavicolor sp. nov. are described. With these, the known species of Isometopinae in South Africa now number sixteen.

Two new species of Campanulaceae from South Africa

Taxon ◽  
2002 ◽  
Vol 51 (4) ◽  
pp. 731-735 ◽  
Author(s):  
De-Yuan Hong
Keyword(s):  
South Africa ◽  
New Species ◽  
Two New Species
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