scholarly journals Two New Species of the Genus Longipedia Claus, 1863 (Copepoda: Harpacticoida: Longipediidae) from Korea, with an Update and a Key to Species

Diversity ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 590
Author(s):  
Hyun Woo Bang ◽  
Heejin Moon ◽  
Jinwook Back
Keyword(s):  
New Species ◽  
18S Rrna ◽  
Morphological Characteristics ◽  
Distal Segment ◽  
Rrna Genes ◽  
Korean Waters ◽  
The Family ◽  
Two New Species ◽  
Specific Variation ◽  
18S Rrna Genes

Benthic harpacticoids were collected from Korean waters. Two species were identified as members of the genus Longipedia Claus, 1863, because they have an extremely elongated distal segment of the P2 endopod. Longipedia koreana sp. nov. is morphologically most closely related to L. nichollsi Wells, 1980 and L. scotti Sars, 1903, but it can clearly be distinguished from both species based on the following morphological characteristics: P1 coxa with strong spinules near the outer margin and the distal element being much bigger than the proximal elements, P2 coxa with a small inner seta on the anterior surface, P4 exopod first segment without an inner element, and the P5 with a rectangular exopod (more than 3.5 times as long as wide). L. ulleungensis sp. nov. is similar to L. brevispinosa Gurney, 1927, L. spinulosa Itô, 1981, and L. weberi Scott A., 1909. However, L. ulleungensis sp. nov. is characterized by the P2 coxa with a reduced inner seta, the P4 exopod second segment without an inner seta, and the anal operculum with a long median projection, a single spine, and a group of outer spines on each side. In a molecular analysis using the mitochondrial cytochrome c oxidase subunit I (COI) and 18S ribosomal RNA (18S rRNA) genes, the inter-specific variation was 22.525–23.102% and 1.325–1.382% of COI and 18S rRNA between the two new species, respectively. A key to the family Longipediidae is provided herein.

scholarly journals Two new species of Rohdendorfia (Diptera: Syrphidae) from Central Asia

2019 ◽  
Vol 59 (1) ◽  
pp. 325-335 ◽  
Author(s):  
Ximo Mengual ◽  
Anatolij V. Barkalov
Keyword(s):  
New Species ◽  
18S Rrna ◽  
First Record ◽  
Rrna Genes ◽  
Coi Gene ◽  
Full Description ◽  
Cytochrome C Oxidase I ◽  
Jammu And Kashmir ◽  
Two New Species ◽  
18S Rrna Genes

Abstract Two new species of the flower fly genus Rohdendorfia Smirnov, 1924 (Diptera: Syrphidae) are described, Rohdendorfia bella Mengual, sp. nov. and Rohdendorfia khakimovi Barkalov, sp. nov. A full description and images of both new species are given, as well as an identification key for the species of this genus. Molecular sequences from mitochondrial cytochrome c oxidase I (COI) gene and nuclear ribosomal 28S and 18S rRNA genes are also provided for the new species. The studied specimens of Rohdendorfia bella Mengual, sp. nov. are the first record of the genus Rohdendorfia from India and represent the first individuals collected in the state of Jammu and Kashmir.

Two new species of the genus Syngastes (Copepoda, Harpacticoida, Tegastidae) from South Korea

Crustaceana ◽  
2016 ◽  
Vol 89 (4) ◽  
pp. 431-458 ◽  
Author(s):  
Jong Guk Kim ◽  
Jong Guk Kim ◽  
Tae Won Jung ◽  
Jong Guk Kim ◽  
Tae Won Jung ◽  
...  
Keyword(s):  
New Species ◽  
South Korea ◽  
First Record ◽  
Exopodal Segment ◽  
Key To Species ◽  
Korean Waters ◽  
The Family ◽  
Two New Species ◽  
Almost All

Herein two new species of the genusSyngastesMonard, 1924 are described from South Korea, with detailed descriptions and illustrations. Both new copepods,Syngastesmulticavussp. nov. andS. pseudofoveatussp. nov., have two inner setae on the first exopodal segment of P2 and P3.Syngastesmulticavussp. nov. most closely resemblesS. gibbosusBartsch, 1999 reported from Australia, as they both have a five-segmented antennule in the female. However,Syngastesmulticavussp. nov. has a rounded body outline instead of the gibbose outline observed inS. gibbosus.Syngastespseudofoveatussp. nov. resemblesS. foveatusBartsch, 1994 in almost all aspects. However, they differ clearly in the number of setae on the first exopodal segment of P2 and P3. We also provide a key to species of the genusSyngastesworldwide. The present study is the first record of the family Tegastidae in Korean waters.

Two new species of amphipods (Crustacea: Amphipoda: Photidae) from Korean waters with a redescription of Gammaropsis longipropodi

Zootaxa ◽  
2017 ◽  
Vol 4300 (3) ◽  
pp. 380 ◽  
Author(s):  
TAE WON JUNG ◽  
HYUN KI CHOI ◽  
MIN-SEOP KIM ◽  
SEONG MYEONG YOON
Keyword(s):  
New Species ◽  
Posterior Margin ◽  
Posterior Lobe ◽  
Characteristic Shape ◽  
Korean Waters ◽  
Cephalic Lobe ◽  
The Family ◽  
Two New Species ◽  
First Time

Three amphipods of the family Photidae collected from Korean waters are reported here with detailed descriptions and illustrations. The Korean materials of Gammaropsis examined in this study are readily assigned to G. longipropodi by the characteristic shape of gnathopod 2 in males: not slenderly produced posterior margin of the carpus, uniform width of very elongate propodus, and the transverse palm. Among the species of genus Photis, P. fischmanni is only one species bearing stridulation ridges of the basis on gnathopod 2 and coxa 3 simultaneously in females, until now. However, Photis stridulus sp. nov. also show this characteristic but is clearly distinguishable from P. fischmanni by the weak setation of the appendages, smaller eye on the anterior cephalic lobe, and the slender carpus and propodus on gnathopod 1. The genus Podoceropsis is recorded from Korean waters for the first time with the discovery of P. clavapes sp. nov. This new species is characterized by its elongate propodus and dactylus on gnathopod 2 and the shape of the posterior lobe of the basis on pereopod 5 in mature males. 

scholarly journals Two new species of parasitic copepods from the genera Nothobomolochus and Unicolax (Cyclopoida: Bomolochidae) from Australian waters

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e6858
Author(s):  
James P. Bernot ◽  
Geoffrey A. Boxshall
Keyword(s):  
New Species ◽  
Distal Segment ◽  
The Other ◽  
Fish Parasites ◽  
Distal Margin ◽  
Commercial Fish ◽  
Parasitic Copepods ◽  
The Family ◽  
Two New Species ◽  
Gill Filaments

A 2016 collaborative survey of commercial fish parasites in Moreton Bay, Queensland, Australia led to the discovery of two new species of parasitic copepods belonging to the family Bomolochidae. Females of Nothobomolochus johndaveorum n. sp. were found attached to the gill filaments of Gerres subfasciatus and Gerres oyena. The new species most closely resembles N. leiognathicola and N. quadriceros. All 3 species possess 3 modified setae on the first antennulary segment that are approximately the same length and have a robust seta on the second antennulary segment adjacent to the 3 modified setae giving a superficial appearance of 4 modified setae on the antennule. The new species can be distinguished from these two species in its possession of longer inner setae on the first two endopodal segments of leg 4: the seta on endopodal segment 1 extends past the midline of the distal segment in the new species vs to the proximal margin of the distal segment in the other two species, and the seta on segment 2 extends well beyond the distal margin of the endopod in the new species vs just to the margin in the other two species. Females and males of Unicolax longicrus n. sp. were found in the nasal sinuses of Sillago maculata and Sillago ciliata. The new species differs from 6 of its 7 congeners in having a leg 4 exopod formula of II, I, 4 rather than II, I, 3 or II, I, 5. The new species resembles U. anonymous in this feature, but differs in its possession of a leg 5 that is relatively longer and less wide, and, whereas U. anonymous possesses inner and outer distal spines on leg 5 that are approximately the same length, those of the new species are relatively longer and asymmetrical. Unicolax longicrus n. sp. is unique among its congeners in its possession of a leg 4 with highly elongated endopodal segments 2 and 3, from which its name is derived. In addition to describing the two new species, host and locality reports for all species of Nothobomolochus and Unicolax are reviewed.

Two new species of Phyllachora (Phyllachoraceae, Phyllachorales) on bamboo from China

Phytotaxa ◽  
2019 ◽  
Vol 425 (2) ◽  
pp. 78-86
Author(s):  
XIAO-LING LI ◽  
SU-RUI WU ◽  
CHUN-LI WANG ◽  
YUN-LI FENG ◽  
CHUN-YAN ZHAO ◽  
...  
Keyword(s):  
New Species ◽  
Yunnan Province ◽  
Phylogenetic Analyses ◽  
Morphological Characteristics ◽  
Field Surveys ◽  
The Family ◽  
Two New Species ◽  
Biotrophic Fungi ◽  
Dendrocalamus Membranaceus

The genus Phyllachora is the largest genus in the family Phyllachoraceae. Phyllachora species are obligate biotrophic fungi with a tropical distribution. During our field surveys in Yunnan province of China, fifteen graminicolous Phyllachora species were collected. Multi-locus phylogenetic analyses of ITS and LSU together with morphological characteristics, two new species, Phyllachora dendrocalami-membranacei sp. nov. on Dendrocalamus membranaceus and P. dendrocalami-hamiltonii sp. nov. on D. hamiltonii are described and illustrated. Phyllachora dendrocalami-membranacei is characterized by its dump-bell to ellipsoidal to ovoid ascospores (15–25 × 5–11 μm) while P. dendrocalami-hamiltoniicola is distinguished by its dump-bell to ellipsoidal ascospores (15–30 × 8–12 μm).

scholarly journals Phylogeny and taxonomy of two new Plectosphaerella (Plectosphaerellaceae, Glomerellales) species from China

MycoKeys ◽  
2019 ◽  
Vol 57 ◽  
pp. 47-60 ◽  
Author(s):  
Zhi-Yuan Zhang ◽  
Wan-Hao Chen ◽  
Xiao Zou ◽  
Yan-Feng Han ◽  
Jian-Zhong Huang ◽  
...  
Keyword(s):  
New Species ◽  
Related Species ◽  
Plant Pathogens ◽  
Morphological Characteristics ◽  
The Family ◽  
Two New Species

The genus Plectosphaerella is the largest genus in the family Plectosphaerellaceae. Some species are plant pathogens, whereas others are soil-borne. Seven Plectosphaerella isolates were collected from various locations in the southwest of China. Using multi-locus phylogenetic (LSU, ITS, EF1α, RPB2) analyses combined with morphological characteristics, two new species, Plectosphaerella guizhouensissp. nov. and Plectosphaerella nauculasporasp. nov. are described, illustrated and compared with related species.

Two new species of Scapheremaeus from Southern Japan (Acari: Oribatida: Cymbaeremaeidae), with genetic information

2018 ◽  
Vol 23 (8) ◽  
pp. 1545 ◽  
Author(s):  
Badamdorj Bayartogtokh ◽  
Shimpei F. Hiruta ◽  
Satoshi Shimano
Keyword(s):  
New Species ◽  
Eastern China ◽  
Oribatid Mites ◽  
Rrna Genes ◽  
28S Rrna ◽  
Sequence Database ◽  
Southern Japan ◽  
Two New Species ◽  
Database Comparison ◽  
18S Rrna Genes

The present paper deals with two new species of oribatid mites of the genus Scapheremaeus Berlese, 1910 from the subtropical islands in Southern Japan. Scapheremaeus nakanoshimensis sp. nov. and Scapheremaeus boninensis sp. nov. are proposed on the basis of adults. Furthermore, we present data on distribution, diversity and habitat ecology of all known species of Scapheremaeus in Japan, and a key is provided for identification of hitherto recorded species in this country. Majority of Scapheremaeus species found in Japan are known to be restricted to areas of Southern Japan and Eastern China. Only one of the species has a relatively broad distribution in South America and East Asia. Most species of Scapheremaeus in Japan are inhabitants of soil and litter of various forests, and mosses growing on rocks, but few of them are arboreal. The D3 fragments of the 28S rRNA (28S D3) and 18S rRNA genes of Scapheremaeus nakanoshimensis sp. nov. are sequenced and data are available in the sequence database. Comparison of the 28S D3 gene sequence of Scapheremaeus nakanoshimensis sp. nov. with other oribatid mites gene sequences identifies that the representatives of Scutoverticidae (Scutovertex, Provertex, Exochocepheus) and Eremaeozetidae (Eremaeozetes), Ameronothridae (Ameronothrus) and Phenopelopidae (Eupelops) are the closest relatives to Scapheremaeus with regard to the species included in this analysis. 

Phylogenetic analysis using rDNA reveals polyphyly of Oplophoridae (Decapoda:Caridea)

2010 ◽  
Vol 24 (2) ◽  
pp. 172 ◽  
Author(s):  
Tin-Yam Chan ◽  
Ho Chee Lei ◽  
Chi Pang Li ◽  
Ka Hou Chu
Keyword(s):  
Phylogenetic Analysis ◽  
18S Rrna ◽  
Morphological Characters ◽  
The Other ◽  
Rrna Genes ◽  
Deep Channel ◽  
The Family ◽  
Molecular Phylogenetic ◽  
18S Rrna Genes ◽  
Molar Process

Molecular phylogenetic analysis on nine of the ten genera in the caridean family Oplophoridae Dana, 1852, as well as 14 other caridean families using mitochondrial 16S and nuclear 18S rRNA genes, does not support the monophyletic status of Oplophoridae. Two disparate groups of oplophorids are revealed, with different morphological characters and ecology. It is proposed that the family Oplophoridae is restricted to the three genera Oplophorus, Systellaspis and Janicella. These three genera tend to be distributed in shallower water than the other oplophorid genera, and can also be distinguished from them by certain morphological characters. They have a thicker integument, superficial cuticular photophores and larger eyes, and the molar process of their mandibles is greatly reduced or bears a deep channel. The family Acanthephyridae Bate, 1888 is resurrected for the other seven genera, which are generally distributed in deeper water and are characterised by red soft integument, no cuticular photophores, smaller eyes and well-developed molar process of the mandibles without a deep channel. The relationships between these two families and other caridean families could not be clearly resolved in this study.

scholarly journals A new species of the genus Sarsamphiascus Huys, 2009 (Copepoda: Harpacticoida: Miraciidae) from a sublittoral zone of Hawaii

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e8506
Author(s):  
Jisu Yeom ◽  
Wonchoel Lee
Keyword(s):  
New Species ◽  
Ribosomal Rna ◽  
Morphological Characteristics ◽  
Distinct Species ◽  
Rrna Genes ◽  
Sublittoral Zone ◽  
Species Type ◽  
18S Rrna Genes ◽  
Sandy Sediments ◽  
A New Species

A new species of Sarsamphiascus Huys, 2009 was collected from sandy sediments of Hawaii at 12 –18 m depth. While the new species, Sarsamphiascus hawaiiensis sp. nov., is morphologically most closely related to S. kawamurai (Ueda & Nagai, 2005), the two species can be distinguished by the combination of the following morphological characteristics: elongated segments of the antennule in the new species, type of outer setae of the P5 exopod (bare in S. kawamurai), position of the inner seta of the P5 exopod in both sexes (more proximal in S. kawamurai), length and type of the setae of female P6 (shorter and bare in S. kawamurai). This is the first species of Sarsamphiascus from Hawaii to be discovered. Molecular analyses of mitochondrial cytochrome c oxidase subunit I (mtCOI) and nuclear 18S ribosomal RNA (18S rRNA) genes confirmed that S. hawaiiensis and S. kawamurai are distinct species.

scholarly journals Molecular taxonomy of some sponges (Demospongiae) using ribosomal (18s rrna) and partial mitochondrial (coi) genes

2018 ◽  
Vol 40 (4) ◽  
Author(s):  
Ton That Huu Dat ◽  
Nguyen Thi Kim Cuc ◽  
Pham Viet Cuong
Keyword(s):  
18S Rrna ◽  
Molecular Taxonomy ◽  
Morphological Characteristics ◽  
Molecular Data ◽  
Rrna Genes ◽  
Mitochondrial Coi ◽  
Rrna Tree ◽  
The Individual ◽  
18S Rrna Genes ◽  
Relationship Of

Sponges, the most ancient multicellular metazoan, were widely distributed across habitats. Vietnam is known to possess a high biodiversity of sponges, however, they are mostly identified based on morphological characteristics and lack the molecular data. In the current study, the phylogenetic relationship of some sponges (Demospongiae) in Vietnam was constructed using two independent markers (COI and 18S rRNA). In this paper the individual markers (COI and 18S rRNA) were successfully used to identify some sponge taxa at the species level. The obtained results showed the congruence of molecular taxonomy using two independent markers. However, our study showed that a combination of the two markers provided more information and supported better for sponge identification. At order level, the COI tree and 18S rRNA tree also recovered the same clades, indicating the congruence of COI and 18S rRNA genes in sponge classification. However, branching order of the clades in COI tree was weakly supported and slightly different from those in 18S rRNA tree. 

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