scholarly journals Unexpected discovery of six new species of Aphyosemion (Cyprinodontiformes, Aplocheilidae) in the Wonga-Wongué Presidential Reserve in Gabon

Author(s):  
Jean-François Agnèse ◽  
Laurent Chirio ◽  
Olivier Legros ◽  
Richard Oslisly ◽  
Hervé Mvé Bhé

During a survey of the fishes in the region of the Wonga-Wongué Presidential Reserve, 14 new populations of the subgenus Chromaphyosemion Myers, 1924 were found. These observations extend the previously known distribution range of the subgenus 120 kilometres southward. None of these populations could be related to any described species. Based on the colouration of the males and females, together with a genetic marker (mitochondrial DNA cytochrome b sequences), the populations studied are grouped into six new species which are described in this article, all close to Aphyosemion alpha Huber, 1998 with which they share the presence of a black alpha-shaped mark on the pre- and post-opercular region. The group composed of A. alpha and the six new species is referred to here as the A. alpha species group. All the new species, A. aurantiacum Chirio, Legros & Agnèse sp. nov., A. barakoniense Chirio, Legros & Agnèse sp. nov., A. flammulatum Chirio, Legros & Agnèse sp. nov., A. flavocyaneum Chirio, Legros & Agnèse sp. nov., A. pusillum Chirio, Legros & Agnèse sp. nov. and A. rubrogaster Chirio, Legros & Agnèse sp. nov., are further unambiguously diagnosed by unique combinations of colour patterns, making it possible to generate an identification key for the A. alpha species group. It is likely that the coastal dunes of Wonga-Wongué that form a sandy relief, could have led to the fragmentation and then isolation of the hydrographical networks that flow into the Atlantic Ocean, making possible a significant number of allopatric speciations.

Zootaxa ◽  
2019 ◽  
Vol 4700 (2) ◽  
pp. 289-298 ◽  
Author(s):  
LEONARDO S. CARVALHO ◽  
RICARDO BOTERO-TRUJILLO

A new solifuge species in the genus Gaucha Mello-Leitão, 1924 and the ibirapemussu species-group is herein described based on males and females collected at Itacuruba, State of Pernambuco, and Jaicós, State of Piauí, both in Northeastern Brazil. Males of the new species can be readily recognized by having the movable finger MM and MSM teeth reduced and of similar size. The present finding raises to twelve the number of described species in the genus, five of which belong to the ibirapemussu species-group. Besides, a new locality record for the species Gaucha ibirapemussu (Carvalho et al., 2010) is here presented, along with an updated identification key for all Gaucha species. 


Zootaxa ◽  
2022 ◽  
Vol 5091 (4) ◽  
pp. 546-558
Author(s):  
ZHAOYANG CHEN ◽  
FENGXIANG LIU ◽  
DAIQIN LI ◽  
XIN XU

This paper reports four new species of the primitively segmented spider genus Songthela from Chongqing Municipality, China, based on morphological characters of both males and females: S. jinyun sp. nov., S. longbao sp. nov., S. serriformis sp. nov. and S. wangerbao sp. nov. We also provide the GenBank accession codes of mitochondrial DNA barcode gene, cytochrome c oxidase subunit I (COI), for the holotype of four new species for future identification.  


Zootaxa ◽  
2021 ◽  
Vol 4942 (2) ◽  
pp. 193-206
Author(s):  
WILLIAM CHAMORRO ◽  
ALEJANDRO LOPERA-TORO ◽  
MICHELE ROSSINI

Dichotomius (Dichotomius) quadrilobatus new species (Coleoptera: Scarabaeidae: Scarabaeinae: Dichotomiini), from western Amazonia (Brazil, Colombia, Ecuador and Peru) is described and its putative systematic position within the Dichotomius boreus species group is discussed. An updated identification key to the species of the Dichotomius boreus species group is provided. Additionally, Dichotomius (Selenocopris) fortepunctatus Luederwaldt, 1923 is recorded for the first time in Colombia. 


Zootaxa ◽  
2017 ◽  
Vol 4254 (5) ◽  
pp. 551
Author(s):  
VALERY M. LOKTIONOV ◽  
ARKADY S. LELEJ ◽  
ZAI-FU XU

Eight species in the Priocnemis hyalinata species-group are reviewed. The species-group is recorded from Oriental Region for the first time, and one new species, Priocnemis (Priocnemis) yunnanensis Loktionov, Lelej & Xu, sp. nov. (China: Yunnan) is described and illustrated. The lectotype of Salius (Priocnemis) unicolor Gussakovskij is designated. The distribution of P. (P.) hyalinata (Fabricius), P. (P.) fennica Haupt and P. (P.) unicolor (Gussakovskij) is clarified and enlarged within Russia. Keys to species for males and females are given.  


ZooKeys ◽  
2021 ◽  
Vol 1048 ◽  
pp. 145-175
Author(s):  
Vladimir I. Lantsov ◽  
Valentin E. Pilipenko

The caucasica species group in the subgenus Lunatipula is redefined and now consists of five species native to the Caucasus. Tipula (L.) eleniyasp. nov. is described as new to science, and variations in the male terminalia in two populations are noted. Two subspecies (quadridentataquadridentata and quadridentatapaupera) are elevated to species rank. Detailed photo’s complement the descriptions of all five species (caucasica, eleniya, paupera, quadridentata, talyshensis), and data on ecology and distribution patterns are included as well as identification keys to males and females. Tipula caucasica is recorded from the West Caucasus and Tipula quadridentata is recorded from Dagestan (Russia) for the first time. Parallel evolution is traced in the male terminalia of the new species and in several non caucasica species group of Palaearctic Lunatipula.


ZooKeys ◽  
2019 ◽  
Vol 880 ◽  
pp. 113-133
Author(s):  
Rodrigo de Vilhena Perez Dios ◽  
Marcelo Domingos de Santis

The monotypic tachinid genus Opsozelia Townsend, 1919 (Diptera: Tachinidae) is synonymized with ZeliaRobineau-Desvoidy 1830, syn. nov. The single species of Opsozelia, O. discalis Townsend, 1919, is redescribed as Zelia discalis, comb. nov., based on examination of the holotype from Guyana and additional material from Suriname, Brazil and Paraguay. Three new species of Zelia similar to Z. discalis are described from Brazil: Z. magnasp. nov., Z. guimaraesisp. nov. and Z. formosasp. nov. These four species are treated informally as the Zelia discalis species group. An identification key to the species of this species group is provided based on male specimens. Descriptions and illustrations are provided for the male terminalia of all species and for the female terminalia of one species, Z. guimaraesi.


Zootaxa ◽  
2018 ◽  
Vol 4442 (1) ◽  
pp. 101-121
Author(s):  
EDGARD PALACIO ◽  
SANTIAGO BORDERA ◽  
ILARI E. SÄÄKSJÄRVI ◽  
FRANCISCO DÍAZ

The New World Clistopyga isayae species group is revised. Seven species are described as new: C. crassicaudata sp. nov., C. isayae sp. nov., C. kalima sp. nov., C. nigriventris sp. nov., C. panchei sp. nov., C. splendida sp. nov. and C. taironae sp. nov. An illustrated identification key to all species of the group is provided. The Clistopyga isayae species group is composed entirely of previously undescribed species mainly from Andean forests of tropical South America. 


Zootaxa ◽  
2007 ◽  
Vol 1602 (1) ◽  
pp. 1-89 ◽  
Author(s):  
RUBÉN RÍOS ◽  
J. EMMETT DUFFY

We review the taxonomy of sponge-dwelling shrimp in the “Gambarelloides species group” within the genus Synalpheus Bate 1888, an informal but widely recognized group that is largely endemic to the western Atlantic and contains the majority of Synalpheus species in that region. The validity of most species described from the western Atlantic is reevaluated based on extensive new material from Carrie Bow Cay, Belize, and on examination of types of most described species. Twenty-eight species, including all those historically considered as part of the Gambarelloides group, are herein removed from Synalpheus and transferred to Zuzalpheus, n. gen., which is diagnosed by two synapomorphies: the dense brush of curved setae on the minor first pereopod, and the mesial lamellae on the coxae of the 3 rd pereopods. Six new species are described (Zuzalpheus dardeaui, Z. elizabethae, Z. idios, Z. kensleyi, Z. ul, Z. yano) and Z. osburni (Schmitt 1933) n. comb. is removed from synonymy with Synalpheus goodei. An identification key to all 34 species of West Atlantic Zuzalpheus is presented, as are known host associations, and color plates of most species.


Zootaxa ◽  
2009 ◽  
Vol 2092 (1) ◽  
pp. 37-46 ◽  
Author(s):  
OSMAR J. LUIZ ◽  
CARLOS E. L. FERREIRA ◽  
LUIZ A. ROCHA

Halichoeres sazimai, n. sp. is described from the Western South Atlantic. During many years it was misidentified as H. bathyphilus from the Northwestern Atlantic, but it can be distinguished from the latter by striking color differences between the two species, with H. sazimai being characterized by a white body with a midline, zigzag patterned stripe on body, black and brownish in terminal males and yellow or golden in females and juveniles. Preserved specimens can also be distinguished by the visible mid-body stripe in H. sazimai, which disappears in H. bathyphilus. Diagnostic differences in the mitochondrial DNA cytochrome b gene separate H. sazimai from all other Western Atlantic labrids, with H. bathyphilus being its sister species. Individuals of H. sazimai were observed living on the deeper parts (20-40 m) of rocky reefs and sand bottoms, apparently associated with water temperatures lower than 18°C. This species is currently known from the southeastern and southern coasts of Brazil, from Espírito Santo to Santa Catarina States.


Zootaxa ◽  
2019 ◽  
Vol 4585 (2) ◽  
pp. 387
Author(s):  
GIORGIO SABELLA ◽  
FABIO MASSIMO VIGLIANISI ◽  
ROSTISLAV BEKCHIEV

Pselaphogenius chloe sp. n. belonging to the fiorii species group is described. The distribution of the 12 species belonging to this group is detailed and an identification key is provided. The hypothesis that the current distribution and the differentiation of the species of the Pselaphogenius of the fiorii group have been determined by the Pleistocenic glaciations is discussed. 


Sign in / Sign up

Export Citation Format

Share Document