Three new earthworm species of the tokioensis-group in the genus Amynthas (Oligochaeta: Megascolecidae) from Guangxi Province, China

Zootaxa ◽  
2018 ◽  
Vol 4496 (1) ◽  
pp. 269 ◽  
Author(s):  
JI-BAO JIANG ◽  
YAN DONG ◽  
ZHU YUAN ◽  
JIANG-PING QIU

Three new species of the genus Amynthas are described from Guangxi Province, China. They are named A. dissimilis sp. nov., A. anteporus sp. nov. and A. marsupiformis sp. nov. All of them have two pairs of spermathecal pores in 6/7–7/8, and belong to the tokioensis-group. Their morphological characteristics are compared to similar species in tokioensis-group from China and other Asian countries. In addition, the mitochondrial COI and 12S-tRNA-Val-16S sequence of three new species were determined, then pairwise distances between species were calculated. Both morphological and molecular evidences could easily distinguish the new species from earthworms previously reported in the tokioensis-group. 

ZooKeys ◽  
2019 ◽  
Vol 884 ◽  
pp. 23-42
Author(s):  
Yan Dong ◽  
Michelle Man Suet Law ◽  
JiBao Jiang ◽  
JiangPing Qiu

Three new species and one subspecies of the genus Amynthas are described from Guangxi Zhuang Autonomous Region, China: The new species are: Amynthas maximus Qiu & Dong, sp. nov. and Amynthas tortuosus Qiu & Dong, sp. nov., and Amynthas shengtangmontis Dong & Jiang, sp. nov., the subspecies is Amynthas shengtangmontis minusculussubsp. nov. All have four pairs of spermathecal pores in 5/6–8/9, which indicates that they should belong to the corticis-group. Their morphological characteristics are compared to other similar species in the corticis-group from China and other Asian countries, such as Amynthas pulvinus Sun & Jiang, 2013, Amynthas homosetus (Chen, 1938), Amynthas corticis (Kinberg, 1867), Amynthas dorsualis Sun & Qiu, 2013, and Amynthas carnosus (Goto & Hatai, 1899). In addition, the results presented are confirmed by the pairwise comparison of COI barcode sequences. The pairwise distances between each new species and the other eighteen corticis-group species are greater than 14.7% on average. Furthermore, the pairwise distance between A. shengtangmontis shengtangmontis and A. shengtangmontis minusculus is 10.7–11.4%.


Zootaxa ◽  
2012 ◽  
Vol 3458 (1) ◽  
pp. 120 ◽  
Author(s):  
RATMANEE CHANABUN ◽  
CHIRASAK SUTCHARIT ◽  
PIYOROS TONGKERD ◽  
SHAU-HWAI AILEEN TAN ◽  
SOMSAK PANHA

Three new species of semi-aquatic freshwater earthworms of the genus Glyphidrilus Horst, 1889 are described from Malaysia.Glyphidrilus bisegmentus sp. n. was collected from Air Banun Pandig, Perak, Glyphidrilus kotatinggi sp. n. from Kota Tinggiwaterfall, Johor, and Glyphidrilus peninsularis sp. n. from Sungei Bantang, Johor. For comparison, type and non-type materialof five morphologically similar species was reinvestigated. The descriptions of the new species include illustrations of the external and internal morphological characteristics.


2021 ◽  
Vol 733 ◽  
pp. 72-86
Author(s):  
Otávio Luis Marques Da Silva ◽  
Pierre Braun ◽  
Ricarda Riina ◽  
Inês Cordeiro

We describe and illustrate three new species of Euphorbia subgenus Chamaesyce from Brazil: E. blepharadena O.L.M.Silva & Cordeiro sp. nov., E. longipedunculata O.L.M.Silva & Riina sp. nov. and E. sobolifera O.L.M.Silva & P.J.Braun sp. nov. Based on morphological characteristics, E. blepharadena sp. nov. and E. longipedunculata sp. nov. are placed in the subcosmopolitan section Anisophyllum, whereas E. sobolifera sp. nov. is placed in the more geographically restricted section Crossadenia. The three new species are compared with their most similar species in each section, and accompanied by comments on habitat and distribution, illustrations, photographs, and proposed conservation status.


Zootaxa ◽  
2019 ◽  
Vol 4590 (5) ◽  
pp. 525
Author(s):  
JUAN MANUEL NIETO NAFRÍA ◽  
CAROL D. VON DOHLEN ◽  
PAUL A. BROWN ◽  
M. PILAR MIER DURANTE ◽  
JAIME ORTEGO ◽  
...  

Three new species of Neuquenaphis Blanchard are described from aphids collected in southernmost South America on several species of Nothofagus, southern beeches: Neuquenaphis blackmani Nieto Nafría and Brown, sp. n. from apterous and alate viviparous females and alatoid nymphs collected on Nothofagus dombeyi in Los Lagos and Los Ríos regions (Chile) and on Nothofagus nitida in Los Ríos region, Neuquenaphis aurata Mier Durante and von Dohlen, sp. n. from apterous and alate viviparous females collected on Nothofagus betuloides in Magallanes region (Chile) and Tierra del Fuego province (Argentina), and Neuquenaphis ramireziNieto Nafría and Ortego, sp. n. from apterous viviparous females collected on Nothofagus pumilio and N. antarctica in Tierra del Fuego province (Argentina) and La Araucanía, Aysén and Magallanes regions (Chile). Sequences of the mitochondrial COI “barcode” region and the tRNAleu-COII locus support the distinction of these new species from described Neuquenaphis species. Morphological characteristics that differentiate the new species from already described species of the genus are discussed. Partial identification keys for known apterous and alate viviparous females of Neuquenaphis species are presented on the basis of those established by Quednau (2010).


Zootaxa ◽  
2017 ◽  
Vol 4341 (2) ◽  
pp. 151
Author(s):  
DAVID A. BOYD ◽  
PATCHARA NITHIROJPAKDEE ◽  
GRIDSADA DEEIN ◽  
CHAVALIT VIDTHAYANON ◽  
CHAIWUT GRUDPAN ◽  
...  

Acantopsis (Cobitidae) is revised based on analysis of morphological and molecular data. Four of the six available names, A. dialuzona, A. spectabilis, A. octoactinotos, and A. thiemmedhi, are valid, and three new species, A. rungthipae, A. dinema, and A. ioa, are described. All species are described morphologically, distributions are mapped, and relationships are discussed for those for which molecular data (CO1, RAG1) are available. Labial barbels, color pattern, and meristic counts are the most diagnostic features. Although the long snout of Acantopsis is perhaps the most emblematic attribute of the genus, its relative length increases with growth, reducing its taxonomic value. Species can be difficult to identify on the basis of color pattern alone, as habitat and preservation methods appear to strongly influence the color pattern. Despite interspecific overlap of some highly variable traits, each species has a unique set of morphological characteristics that remain observable even when the color pattern is obscured, and some species are restricted to single drainages, greatly simplifying identification. The phylogenetic analyses revealed high molecular divergence between even the most morphologically similar species, with mean uncorrected CO1 p-distances between species ranging from 12.1-15.4%. Species of Acantopsis exhibit significant genetic structuring consistent with recognized freshwater ecoregions. Acanthopsis lachnostoma Rutter 1897, from Swatow, China, is not assignable to Acantopsis. 


Zootaxa ◽  
2021 ◽  
Vol 5032 (3) ◽  
pp. 411-422
Author(s):  
ANTON V. VOLYNKIN

Three new species of the genus Barsine Walker, 1854 are described from the island of Taiwan: B. geometroides sp. n., B. wui sp. n. and B. witti sp. n. The diagnostic comparison is made with B. ponlai Wu, Fu & Chang, 2013, B. mactans Butler, 1877 and B. callorufa Wu, Fu & Chang, 2013. Adults together with the male and the female genitalia of the new and the similar species are illustrated.  


2018 ◽  
Vol 118 (1) ◽  
pp. 97-109 ◽  
Author(s):  
Eliakunda Mafie ◽  
Atsuko Saito-Ito ◽  
Masatoshi Kasai ◽  
Mochammad Hatta ◽  
Pilarita T. Rivera ◽  
...  

Forests ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1531
Author(s):  
Xu Lu ◽  
Haisheng Yuan

Species in the genus Tomentella are distributed throughout the temperate and tropical regions worldwide, but few studies associated with the taxonomy and phylogeny of this genus had been reported from Northwest China. In this paper, molecular phylogenetic analyses of the nuclear ribosomal ITS (internal transcribed spacer: ITS1-5.8S-ITS2) and LSU (large subunit: 28S) sequences combined with morphological characteristics identified three new species from Xinjiang Autonomous Region in Northwest China, which were named T. aurantispora, T. kanasensis, and T. schrenkiana. Similar macromorphological and anatomical characteristics are shared by these new species: arachnoid basidiocarps; byssoid sterile margins; utriform basidia with a clamp connection at the base; the absence of rhizomorphs and cystidia; and slightly thick-walled, subglobose to globose basidiospores. Among these new species, the color of the hymenophoral surface, the size of the basidiospores, and some other features can be used for species delimitation. The new species and closely related species in the phylogenetic tree were discussed, and a key to the identified species of Tomentella from China was provided.


Phytotaxa ◽  
2021 ◽  
Vol 479 (3) ◽  
pp. 257-274
Author(s):  
Q.M. YOU ◽  
K. ZHAO ◽  
Y.L. WANG ◽  
P. YU ◽  
J.P. KOCIOLEK ◽  
...  

Four new monoraphid diatoms are examined and described from a high-altitude (> 3000 m) region of western Sichuan, China.  The descriptions are based on light and scanning electron microscopy observations, and the four new species are compared with similar taxa worldwide.  Achnanthidium sichuanense sp. nov. has small, lanceolate-elliptical valves, with rounded apices. The outline and central area differentiate it from similar species.  The unique characteristic of Eucocconeis undulatum sp. nov. is that it has valves that are undulate along the apical axis, forming an “H”-shaped area on both raphe and rapheless valves as seen in light microscope (LM).  Platessa mugecuonesis sp. nov. and Platessa lanceolata sp. nov. are two small species, whose valve outlines and central areas make them different from other species in this genus.  A. sichuanense sp. nov. and E. undulatum sp. nov. are discussed in terms of the relationship between “Achnanthidium & Psammothidium” and “Eucocconeis & Psammothidium”, as these genera are difficult to separate according to morphological characteristics.


Phytotaxa ◽  
2021 ◽  
Vol 500 (1) ◽  
pp. 1-10
Author(s):  
MENG-LE XIE ◽  
TIE-ZHENG WEI ◽  
BÁLINT DIMA ◽  
YONG-PING FU ◽  
RUI-QING JI ◽  
...  

This study presents one telamonioid species new to science based on morphological characteristics and molecular phylogenetic analyses. Cortinarius khinganensis was collected from the Greater Khingan Mountains, Northeast China and it is characterized by hygrophanous, vivid brownish red and striate pileus, white universal veil, and subglobose spores. According to phylogenetic analyses results, C. khinganensis belongs to the section Illumini, which is a lineage distantly related from subgenus Telamonia sensu stricto. Detailed descriptions of the new species and the comparisons with morphologically similar species are provided. The phylogenetic relationships within the section Illumini are also discussed.


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