Taxonomic morphology of the genus Adineta (Rotifera: Bdelloidea: Adinetidae) with a new species from a suburban garden

Zootaxa ◽  
2018 ◽  
Vol 4524 (2) ◽  
pp. 187 ◽  
Author(s):  
AYDIN ÖRSTAN

The morphological descriptions of the species of bdelloid rotifers and the associated taxonomic difficulties, primarily resulting from the inadequate original descriptions of many species, are discussed. The genus Adineta, whose members are relatively easy to study and frequently encountered, is proposed as a starting point for taxonomic revisions of the Bdelloidea. The taxonomically significant morphological traits in the genus Adineta are discussed. Some of these have rarely been used: the number of denticles on the rake organ and body proportions. These traits are used to describe Adineta beysunae sp. nov., which was found in a sample from a house garden. The new species is diagnosed by the morphology of its rump, foot and rake organ. The latter has up to 11 denticles, the highest number recorded in an Adineta species. 

Limnology ◽  
2021 ◽  
Author(s):  
Renata Manconi ◽  
Dirk Erpenbeck ◽  
Jane Fromont ◽  
Gert Wörheide ◽  
Roberto Pronzato

AbstractA recent discovery of freshwater sponges in an unexplored hydrographic basin in north-western Australia provided the opportunity to investigate the genus Corvospongilla Annandale (Spongillida: Spongillidae) using integrative systematics. Emendation of the genus diagnosis is provided. A comparative analysis of a Corvospongilla global dataset of morphological traits together with biogeographic patterns disclosed a new Australasian Corvospongilla species and along with molecular analyses provided the basis for a phylogenetic and phylogeographic tree for some Asian, Afrotropical and Australasian lineages.


Acarologia ◽  
2019 ◽  
Vol 59 (4) ◽  
pp. 456-474
Author(s):  
Sergey G. Ermilov ◽  
Stanislav Kalúz

This work includes taxonomic data on two species of oribatid mites of the family Otocepheidae from Malaysia. A new species of the genus Fissicepheus is described. Fissicepheus parastriganovae n. sp. differs from Fissicepheus striganovae Ermilov and Anichkin, 2014 by body ornamentation, length of interlamellar and notogastral setae and morphology of genital plates. The species Leptotocepheus murphyi (Mahunka, 1989) is recorded in Malaysia for the first time. A supplementary description of this species which was originally described from Singapore is given on the basis of the Malaysian specimens. The main morphological traits for L. murphyi are summarized.


2012 ◽  
Vol 88 (2) ◽  
pp. 139-151 ◽  
Author(s):  
A.P. Malan ◽  
R. Knoetze ◽  
L. Tiedt

AbstractA new entomopathogenic nematode in the genus Heterorhabditis is described from South Africa, from two singular isolates found 1000 km from each other, from beneath a fig tree and in a citrus orchard, respectively. Morphological and molecular studies indicate both isolates to be the same and a new undescribed Heterorhabditis species. Comparison of sequences of the internal transcribed spacer (ITS) rDNA and the D2D3 region of the 28S rDNA gene with available sequences of other described species within the genus, indicate the two isolates as a new species. Phylogenetic analysis of the sequence data concerned placed the new species, H. noenieputensis n. sp., closest to H. indica and H. gerrardi in the indica-group. The new species, H. noenieputensis n. sp., is distinguished from other species in the genus by a combination of several morphological traits of the males and the infective juveniles (IJs). The new species differs from all other species previously described, as regards the body length of the IJs, except for H. indica and H. taysearae, in which the IJ is smaller. The IJ also differs from that of H. indica in the length of the oesophagus, the body diameter, the length of the tail and the E%. In addition, males of H. noenieputensis n. sp. differ from their closest relative, H. indica, in the position of the excretory pore, SW% and D%; and from H. gerrardi in the length of the oesophagus and SW%. The seventh pair of genital papillae of H. noenieputensis n. sp. are normally developed, while for H. indica they are often branched or swollen at the base, while 8 and 9 are usually absent in both species.


Zootaxa ◽  
2020 ◽  
Vol 4772 (2) ◽  
pp. 253-276
Author(s):  
MIN OK SONG ◽  
CHANG-HO LEE

A taxonomic study on bdelloid rotifers collected from various terrestrial habitats at five different locations in Korea resulted in eight new Korean records and two new species-level taxa, Philodina clypeata  n. sp. and P. verrucosa  n. sp. Among the eight new Korean records, two species- and three subspecies-level taxa are new to Asia as well. These new Korean records also include seven rare species/subspecies-level taxa with poorly known distributions. Habrotrocha gracilis quadridens Schulte and Macrotrachela zickendrahti seda Donner were rediscovered in Korea 64 and 53 years, respectively, after the original descriptions. Habrotrocha ligula aligula Burger, Macrotrachela insulana Donner, M. petulans Milne, M. pinnigera (Murray), and Philodina parvicalcar De Koning have been reported from two to three countries only including their type localities before the present study. In addition, a partial sequence of mitochondrial cytochrome c oxidase subunit I gene (mtCOX1) for P. verrucosa  n. sp. as well as a taxonomic key for the Philodina species recorded from Korea to date are also provided here. 


Zootaxa ◽  
2019 ◽  
Vol 4648 (3) ◽  
pp. 473-493 ◽  
Author(s):  
MARCUS THADEU TEIXEIRA SANTOS ◽  
SÍLVIA HELENA DE OLIVEIRA ◽  
THIAGO RIBEIRO DE CARVALHO ◽  
BÁRBARA FERNANDES ZAIDAN ◽  
NELSON RODRIGUES DA SILVA ◽  
...  

A new species of Paratelmatobius is described from the Brazilian Atlantic Forest in the state of Paraná in southern Brazil. Adults, tadpoles, and vocalizations are described. Morphological traits and phylogenetic analysis place the new species within the P. cardosoi group. The new species can be readily distinguished from its congeners by its advertisement call being composed of two note types and comprised of a series of 2–4 notes. The new species is classified as an explosive breeder, having reproductive activity strongly associated with heavy rainfall. This discovery highlights the importance of intensifying survey efforts in the Atlantic Forest, a domain with high levels of species richness and endemism. 


Zootaxa ◽  
2019 ◽  
Vol 4563 (3) ◽  
pp. 516 ◽  
Author(s):  
RAEHYUK JEONG ◽  
ALEXEI V. TCHESUNOV ◽  
WONCHOEL LEE

A new species of the genus Thalassironus de Man, 1889 was discovered during several surveys of the offshore marine ecosystem in Korea. This new species belonging to the family Ironidae, Thalassironus koreanus sp. nov., shares general morphological traits of the genus such as an optically smooth cuticle, buccal cavity consisting of two parts with three movable teeth and thick cuticularized walls, six rounded lips with ten cephalic setae, slit-like amphid and short conical tail with caudal glands present. The new species is most closely related to T. bohaiensis, first discovered in the Bohai Sea, in terms of body ratio (a, b, c, c’) and general morphology, but differs by its generally longer and larger body structures, cervical setae at the level of the buccal cavity, paired somatic setae distributed along the body, and longer/larger spicule. A description of Thalassironus koreanus sp. nov., diagnosis of the genus, emended pictorial key for the genus and discussion of important characteristics for the genus is provided. 


2017 ◽  
Vol 22 (7) ◽  
pp. 948
Author(s):  
Sergey G. Ermilov

The first data on the oribatid mites of Myanmar are presented and these belong to the family Otocepheidae. A new species of the genus Eurostocepheus (Oribatida, Otocepheidae) is described from litter of disturbed primary forest of Nat Ma Taung National Park in the Chin State. Eurostocepheus (Eurostocepheus) peterjaegeri sp. nov. is morphologically most similar to E. (E.) mahunkai Mondal & Kundu, 1999, but differs by the shorter notogastral setae c and la compared to the other notogastral setae, setae la pressed to notogastral surface, well-developed lateral prodorsal carinae, smooth genital plates and by the presence of diagonal ridges on the anal plates. A supplementary description of Otocepheus (Otocepheus) heterosetiger Aoki, 1965 which was originally described from Thailand, is given in detail on the basis of specimens from Myanmar. The main morphological traits for this species are summarized.


Phytotaxa ◽  
2020 ◽  
Vol 432 (3) ◽  
pp. 274-282
Author(s):  
DENG-FENG XIE ◽  
FU-MIN XIE ◽  
SHENG-BIN JIA ◽  
HAO LI ◽  
XIN YANG ◽  
...  

Allium xinlongense from western Sichuan Province, China, is described as a new species. Its diagnostic morphological characters were confirmed to be valid by comparing them to those of related species, such as A. maowenense, A. chrysanthum, A. rude, A. xichuanense, A. chrysocephalum, and A. herderianum. Molecular phylogenetic analysis (combining ITS and rpL32-trnL markers) indicated that this new species is a member of Allium sect. Daghestanica. A comprehensive description of this new species is provided, including habitat environment and detailed morphological traits.


Zootaxa ◽  
2016 ◽  
Vol 4208 (5) ◽  
pp. 474 ◽  
Author(s):  
ARTEM M. PROKOFIEV ◽  
OFER GON ◽  
PETER N. PSOMADAKIS

A new species of Neobathyclupea is described from two specimens collected off Myanmar and off Socotra Island. The new species is most similar to N. malayana, but differs from it and other congeners in having jet-black coloured fins, larger pseudobranch, dorsal-pterygiophore pattern and some body proportions. Neobathyclupea malayana is re-diagnosed. Individual variations in armament of the preopercle and in the dorsal-pterygiophore patterns within Bathyclupeidae are discussed. 


2020 ◽  
Vol 153 (1) ◽  
pp. 120-131
Author(s):  
Vadim Bakalin ◽  
Anna Vilnet

Background and aims – The xeric landscapes of the Tibetan floristic province are adverse habitats for leafy liverworts. Here we report on the occurrence of a population of a species of the genus Plagiochila from exposed high-elevation cliffs in the Sichuan Province, China. We assessed its taxonomic distinctiveness and affinities within a morphological and phylogenetic framework.Results and discussion – The population is accommodated in a new species, Plagiochila xerophila Bakalin & Vilnet – probably the most xerophilous taxon within the genus in Asia – and a new section (sect. Xerophilae Bakalin & Vilnet) based on integrative analyses of molecular and morphological traits. The species is characterized by a greenish colour, unexpected given the highly exposed habitat, rigid texture and stem paraphyllia. The closest morphological relatives from sect. Poeltiae are phylogenetically only distantly related, whereas members of its sister groups, namely of sect. Trabeculatae and sect. Fruticosae are morphologically conspicuously different.


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