Atyid shrimps of the genus Caridina (Decapoda, Caridea, Atyidae) of Taipa-Coloane Island, Macau, China, with description of a new species

Crustaceana ◽  
2021 ◽  
Vol 94 (9) ◽  
pp. 1103-1119
Author(s):  
Guofeng Zhou ◽  
Wangang Zhang ◽  
Kaichin Wong ◽  
Jianrong Huang

Abstract In this study, four species of atyid shrimps of the genus Caridina, viz., Caridina cantonensis Yü, 1938, C. breviata N. K. Ng & Cai, 2000, C. gracilipes De Man, 1892 and C. macauensis sp. nov., are documented from Macau, China for the first time. The new species, C. macauensis sp. nov., is identified using morphological and molecular data. According to its morphology, C. macauensis is distinguished from the closely related species C. trifasciata Yam & Cai, 2003, by a shorter rostrum, male second pereiopod and colouration. A diagnosis of the three known species and a full description of C. macauensis sp. nov. are presented. Furthermore, genetic data of C. macauensis sp. nov. derived from the mitochondrial cytochrome c oxidase subunit I (COI) support that this species has a sufficient interspecific divergence from its congeners.

Karstenia ◽  
2021 ◽  
pp. 46-54
Author(s):  
Ertugrul Sesli

<em>Cortinarius gueneri</em> (subgen. <em>Telamonia</em> sect. <em>Laeti</em>) is described as a new species from Turkey based on morphological and molecular data. It can be recognized by the somewhat irregular conical to campanulate, translucent-striate, rusty brown pileus; pale yellowish to cinnamon brown broadly attached lamellae; pale salmon to pinkish brown stipe; narrowly amygdaloid to ellipsoid basidiospores; and its putative association with <em>Carpinus orientalis</em>. Full description of the new species is given with field photos, microscopic illustrations, and a short discussion. Phylogenetic analysis of the internal transcribed spacer (ITS) region is also provided.


Phytotaxa ◽  
2021 ◽  
Vol 509 (1) ◽  
Author(s):  
WENQI HU ◽  
QINGHAI ZHANG ◽  
GUIZHEN CHEN ◽  
MENGJIA ZHU ◽  
XIA YU ◽  
...  

This study describes a new orchid species, Cymbidium motuoense, from Xizang, China based on morphological and molecular analyses. Several unique morphological features distinguish this new orchid from all other species of Cymbidium. Based on its morphology, this orchid is similar to C. tracyanum but differs in its yellow-green flower with dark purple-red spots on the veins, oblong-elliptic sepals, side lobes of the lip with reddish brown hairs along the veins and disc with three purple-red lamellae. Phylogenetic analyses based on plastid DNA (matK and rbcL) supported C. motuoense as a new species. However, the low support in nuclear ribosomal ITS tree provide the possibility that the new orchid may be a natural hybrid of C. tracyanum and C. iridioides or another closely related species.


Zootaxa ◽  
2021 ◽  
Vol 5005 (3) ◽  
pp. 291-303
Author(s):  
INGRID COSTA MARÇAL ◽  
FERNANDA POLLI PÁEZ ◽  
LENICE SOUZA-SHIBATTA ◽  
SILVIA HELENA SOFIA ◽  
GUSTAVO MONTEIRO TEIXEIRA

A new species of freshwater anomuran crab, Aegla buenoi n. sp., is described. The new taxon was collected from two streams within the Cinzas River basin, Paraná state, Brazil. We used morphological and molecular data (COI mtDNA) to distinguish the new species from its congeners. Aegla buenoi n. sp. is differentiated by morphological diagnostic features of the cephalothorax, chelipeds, second abdominal epimeron, and uropods. Molecular results confirm the separation of A. buenoi n. sp. from closely related species (A. castro Schmitt, 1942, A. lata Bond-Buckup & Buckup, 1994, and A. jacutinga Marçal & Teixeira, 2020). Hence, our study increases the known diversity of aeglids and reports the first species of Aegla from the Cinzas River basin.


Phytotaxa ◽  
2014 ◽  
Vol 186 (5) ◽  
pp. 241 ◽  
Author(s):  
Fang Wu ◽  
Yuan Yuan ◽  
VERA F. MALYSHEVA ◽  
Ping Du ◽  
Yu Cheng Dai

Phylogenetic analysis of the Auricularia auricula-judae complex was carried out using ITS and nLSU ribosomal RNA gene regions, and morphology of the A. auricula-judae complex and related species is examined based on 33 wild collections and 10 cultivated samples worldwide. The phylogenetic analysis presented here showed that the wild and cultivated samples previously identified as A. auricula-judae in China are different from those from Europe (the type locality). So far no exist name for the most important Chinese Auricularia species is available, and thus a new species, Auricularia heimuer, is described and illustrated. The new species is characterized by effused-reflexed or substipitate basidiomata with fawn to reddish brown color when fresh and vinaceous gray to dark gray when dry, pilose upper surface usually with a few folds when dry, short abhymenial hairs without branching and measured as 50–150 × 4–6.5 µm, usually presence of medulla, long clavate basidia with oil guttules and measured as 40–67 × 3.0–6.5 µm, and allantoid spores measured as 11–13 × 4–5 µm. A. auricula-judae is not found in China, and most probably has a distribution in Europe only. In addition, A. americana and A. villosula are the first time reported in China. Both A. heimuer and A. villosula grow on angiosperm wood, while A. americana is found on gymnosperm wood exclusively.


Author(s):  
Martina Pavlek ◽  
Carles Ribera

This paper describes and illustrates a new genus and a new species belonging to the family Nesticidae based on morphology and supported by molecular data. The new genus, Kryptonesticus gen. nov., groups eight species spread from Bulgaria and Turkey to Croatia, including Montenegro, Bosnia and Herzegovina and Crete. As a result, seven new combinations are proposed: K. eremita (Simon, 1879) comb. nov., K. arenstorffi (Kulczyński, 1914) comb. nov., K. fagei (Kratochvíl, 1933) comb. nov., K. beroni (Deltshev, 1977) comb. nov., K. beshkovi (Deltshev, 1979) comb. nov., K. henderickxi (Bosselaers, 1998) comb. nov. and K. dimensis (López-Pancorbo, Kunt & Ribera, 2013) comb. nov., all ex Nesticus. Kryptonesticus deelemanae gen. et sp. nov. is described on the basis of both sexes and its phylogenetic relationships with closely related species are discussed based on morphological and molecular data (the cox1, rrn and H3 genes). In addition, the species of this new genus (except for K. eremita) are clear candidates for protection: they have highly restricted ranges and some of them show a high degree of adaptation to the subterranean environment.


Zootaxa ◽  
2020 ◽  
Vol 4729 (2) ◽  
pp. 207-227
Author(s):  
ELSON MENESES-PELAYO ◽  
JUAN P. RAMÍREZ

We describe a new sphaerodactylid lizard of the genus Gonatodes from the western flank of the Cordillera Oriental, Santander Department, Colombia based on morphological and molecular data. The new species is distinguished from all congeners by having a medium body size, by the absence of both a supraciliary spine and of clusters of distinctly enlarged conical scales on the sides and by having a subcaudal scale pattern (1’1”) and a cryptic dorsal color pattern in both sexes. Additionally, we describe for the first time the hemipenial morphology for a species of the genus. The new species increases the number of Gonatodes known from Colombia to eight and is the only known species of the country, as well as the second known mainland species of the genus not exhibiting sexual dichromatism. 


2018 ◽  
Vol 32 (4) ◽  
pp. 827 ◽  
Author(s):  
Ana Riesgo ◽  
Fernanda F. Cavalcanti ◽  
Nathan J. Kenny ◽  
Pilar Ríos ◽  
Javier Cristobo ◽  
...  

Our study reports on the occurrence of a new species of Leucetta (Calcinea, Calcarea) from the Southern Ocean, Leucetta giribeti, sp. nov., collected in the shallow waters (15m depth) of Deception Island, South Shetland Islands. This new taxon is described based on a combination of morphological and molecular data, including the description of oocytes, embryos, larvae and sperm found in the choanosome. While female reproductive elements showed great similarities with those of other calcineans, sperm is reported here for the first time in the whole Calcinea subclass. Sperm cells are flagellated and possess a typical spermatic mid-piece, which is usually observed in cnidarians. In our phylogenetic analyses, we recovered Leucetta giribeti, sp. nov. as sister species of a clade formed by species of the genera Leucetta, Pericharax and Leucettusa. Although the clade in which Leucetta giribeti, sp. nov. is placed is supported by molecular and morphological features, we cannot propose a new genus due to uncertainties regarding the type species of the genus, Leucetta primigenia Haeckel, 1872. Our study reinforces the relevance of integrative approaches in the description of new taxa and contributes to resolving the poorly known reproductive patterns of Antarctic sponge species.


Mammalia ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Daniela Arenas-Viveros ◽  
Pamela Sánchez-Vendizú ◽  
Alan Giraldo ◽  
Jorge Salazar-Bravo

Abstract The systematics and taxonomy of the broadly distributed bats of the genus Cynomops has changed considerably in the last few years. Among the major changes, Cynomops abrasus was split into two species of large-bodied forms (Cynomops mastivus and C. abrasus) distributed east of the Andes. However, large Colombian specimens identified as C. abrasus from the western side of the Andes had yet to be included in any revisionary work. Phylogenetic analysis performed in this study, using mtDNA sequences (Cytochrome-b), revealed that these Colombian individuals are more closely related to Cynomops greenhalli. Morphological and molecular data allowed us to recognize populations from western Colombia, western Ecuador and northwestern Peru, as members of a new species of Cynomops. Characters that allow for its differentiation from C. greenhalli include a larger forearm, paler but more uniform ventral pelage, more globular braincase, and well-developed zygomatic processes of the maxilla (almost reaching the postorbital constriction). This study serves as another example of the importance of including multiple lines of evidence in the recognition of a new species. Given its rarity and the advanced transformation of its habitat, this new species is particularly important from a conservation perspective.


2021 ◽  
Vol 95 ◽  
Author(s):  
M.M. Montes ◽  
J. Barneche ◽  
Y. Croci ◽  
D. Balcazar ◽  
A. Almirón ◽  
...  

Abstract During a parasitological survey of fishes at Iguazu National Park, Argentina, specimens belonging to the allocreadiid genus Auriculostoma were collected from the intestine of Characidium heirmostigmata. The erection of the new species is based on a unique combination of morphological traits as well as on phylogenetic analysis. Auriculostoma guacurarii n. sp. resembles four congeneric species – Auriculostoma diagonale, Auriculostoma platense, Auriculostoma tica and Auriculostoma totonacapanensis – in having smooth and oblique testes, but can be distinguished by a combination of several morphological features, hosts association and geographic distribution. Morphologically, the new species can be distinguished from both A. diagonale and A. platense by the egg size (bigger in the first and smaller in the last); from A. tica by a shorter body length, the genital pore position and the extension of the caeca; and from A. totonacapanensis by the size of the oral and ventral sucker and the post-testicular space. Additionally, one specimen of Auriculostoma cf. stenopteri from the characid Charax stenopterus (Characiformes) from La Plata River, Argentina, was sampled and the partial 28S rRNA gene was sequenced. The phylogenetic analysis revealed that A. guacurarii n. sp. clustered with A. tica and these two as sister taxa to A. cf. stenopteri. The new species described herein is the tenth species in the genus and the first one parasitizing a member of the family Crenuchidae.


Mycologia ◽  
2002 ◽  
Vol 94 (4) ◽  
pp. 641 ◽  
Author(s):  
Zheng Wang ◽  
Manfred Binder ◽  
David S. Hibbett

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