scholarly journals Two New Species of Parastenocaris (Copepoda, Harpacticoida) from a Hyporheic Zone and Overview of the Present Knowledge on Stygobiotic Copepoda in Vietnam

Diversity ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 534
Author(s):  
Ngoc-Son Tran ◽  
Mau Trinh-Dang ◽  
Anton Brancelj
Keyword(s):  
New Species ◽  
Hyporheic Zone ◽  
Small Rivers ◽  
Freshwater Species ◽  
Apical Seta ◽  
Central Vietnam ◽  
The Family ◽  
Two New Species ◽  
Freshwater Habitats ◽  
Caudal Rami

The number of freshwater species belonging to the genus Parastenocaris reported from ten countries of Southeast Asia is quite limited. Only two species have been reported so far from freshwater habitats there, compared to over 290 described species of the family Parastenocarididae worldwide. During the first study of the hyporheic zone of two small rivers in central Vietnam, two new species of the family Parastenocarididae were collected, Parastenocaris sontraensis sp. nov. and Parastencaris vugiaensis sp. nov. Both were collected from the gravel bar along the rivers (Suoi Da and Vu Gia river) using the Karaman–Chappuis method. Both the new species belong to the brevipes group of the genus Parastenocaris Kessler, 1913 sensu Lang (1948), and Reid (1995). Parastenocaris sontraensis sp. nov. is similar to P. hinumaensis Kikuchi, 1970 and Parastenocaris jane Karanovic, 2006 in the brevipes-group. Parastenocaris sontraensis sp. nov. differs from both Parastenocaris species by (i) Exp P3 with three segments in the male, (ii) caudal rami with seven setae, and (iii) caudal rami about 2.4 times as long as wide. Parastencaris vugiaensis sp. nov. can be distinguished from its congeners by the unique combination of the following characters: (i) the elliptical shape of caudal rami, (ii) apical seta (V) with bulbous base, and (iii) anal operculum extends beyond the end of anal somite. Until now, 14 stygobiotic species of Copepoda have been recorded in Vietnam (including two new species in this paper), which is relatively few compared with nearby Thailand with 25 species. Short comments on other stygobiotic Copepoda from Vietnam are added.

scholarly journals Two New Hyporheic Amphipods, Bogidiella ( Bogidiella) Cyrnensis n. sp. and Bogidiella (Medigidiella?) Paolii n. sp., from Corsica

1983 ◽  
Vol 53 (1) ◽  
pp. 82-92 ◽  
Author(s):  
F. Hovenkamp ◽  
W. Hovenkamp ◽  
J.J. van der Heide
Keyword(s):  
New Species ◽  
Marine Species ◽  
Small Rivers ◽  
Amphipod Species ◽  
Freshwater Species ◽  
The Family ◽  
The Mediterranean

Two new amphipod species of the family Bogidiellidae were found in the hyporheal of two small rivers on Corsica. Both new species, Bogidiella (Bogidiella) cyrnensis n. sp. and B. paolii n. sp. (provisionally placed in the subgenus Medigidiella, but a definitive classification will have to wait till males are found), encountered at altitudes of 135 m and 750 m, respectively, show more affinities with certain freshwater species of Sardinia than with marine species of the Mediterranean.

Two new species of Apodopsyllus (Copepoda, Harpacticoida) from Jeju Island, Korea

Zootaxa ◽  
2012 ◽  
Vol 3368 (1) ◽  
pp. 128 ◽  
Author(s):  
JINWOOK BACK ◽  
WONCHOEL LEE
Keyword(s):  
New Species ◽  
Intertidal Zone ◽  
Jeju Island ◽  
Apical Seta ◽  
Harpacticoid Copepods ◽  
The Family ◽  
Two New Species ◽  
Unique Shape ◽  
South Sea ◽  
Body Segmentation

A study of harpacticoid copepods from the intertidal zone of Jeju Island in the South Sea of Korea resulted in the discovery of two new paramesochrid species. They are placed in the genus Apodopsyllus Huys, 2009 on account of the following combination of characters: the absence of P2–P4 endopods, the poorly defined body segmentation, the two-segmented P1 endopod and exopod, and the fusion of the P2-P4 coxae with the respective body somites. Apodopsyllus gwakjiensis sp. nov. is most closely related to A. bermudensis (Coull & Hogue, 1978), but clearly distinguishable from it by the following characters: the concave shape of the baseoendopod with two bare setae, P4 basis without endopodal seta, and certain detailed characteristics of the mouthparts. Apodopsyllus unisetosus sp. nov. is easily distinguished from its congeners by the antennary exopod, which is armed with a single apical seta. In addition, A. unisetosus has the baseoendopod of P5 fused with somite, the P1 armed with one inner and one outer basal seta, and the unique shape of the male P6. Keys to genera of the family Paramesochridae Lang, 1944, as well as to species of the genus Apodopsyllus Huys, 2009 are provided.

scholarly journals First record of the subfamily Oxytorinae (Insecta, Hymenoptera, Ichneumonidae) from the Oriental Region, with descriptions of two new species from Vietnam

2021 ◽  
Vol 9 ◽  
Author(s):  
Matthias Riedel ◽  
Lien Vu Van ◽  
Stefan Schmidt
Keyword(s):  
New Species ◽  
First Record ◽  
Oriental Region ◽  
Central Vietnam ◽  
The Family ◽  
Two New Species ◽  
Single Genus ◽  
First Time

The Oxytorinae is a small subfamily of the family Ichneumonidae (Insecta, Hymenoptera) with the single genus Oxytorus Förster and 23 described species. Species were previously known to occur in the Palaearctic, Nearctic and Neotropical Regions. The ichneumonid subfamily Oxytorinae is recorded for the first time from the Oriental Region. Two species, one from northern and one from central Vietnam, are described as new: Oxytorus carinatus Riedel, sp. n. and O. rufopropodealis Riedel, sp. n.

The oldest representatives of the family Coccinellidae (Coleoptera: Polyphaga) from the Lowermost Eocene Oise amber (France)

2012 ◽  
Vol 21 (1) ◽  
pp. 131-144 ◽  
Author(s):  
A.G. Kirejtshuk ◽  
A. Nel
Keyword(s):  
New Species ◽  
Short Review ◽  
The Family ◽  
Two New Species ◽  
Fossil Records ◽  
One New Species ◽  
Eocene Amber

In the paper two new species of the genus Rhyzobius Stephens, 1829 (R. antiquus sp. nov. and R. gratiosus sp. nov.) and one new species of the genus Nephus Mulsant 1846 (N. subcircularis sp. nov. without a certain subgeneric placement) from the Lowermost Eocene amber of Oise are described. A short review of known fossil records of the family Coccinellidae is given.

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 ofSyllis(Polychaeta: Syllidae) from South Africa, one of them viviparous, with remarks on larval development and vivipary

2014 ◽  
Vol 94 (4) ◽  
pp. 729-746 ◽  
Author(s):  
Carol Simon ◽  
Guillermo San Martín ◽  
Georgina Robinson
Keyword(s):  
South Africa ◽  
New Species ◽  
South African ◽  
The Other ◽  
Coralline Algae ◽  
Colour Pattern ◽  
The Family ◽  
Two New Species ◽  
Haliotis Midae ◽  
Characteristic Colour

Two new species of South African Syllidae of the genusSyllisLamarck, 1818 are described.Syllis unzimasp. nov. is characterized by having unidentate compound chaetae with long spines on margin, a characteristic colour pattern and its reproduction by vivipary. Vivipary is not common among the polychaetes, but most representatives occur in the family Syllidae Grube, 1850 (in five otherSyllisspecies, two species ofDentatisyllisPerkins, 1981 and two species ofParexogoneMesnil & Caullery, 1818).Syllis unzimasp. nov. differs from the other viviparous species in having large broods (>44 juveniles) which develop synchronously. Development of the juveniles is similar to that of free-spawningSyllisspecies, but the appearance of the first pair of eyespots and the differentiation of the pharynx and proventricle occur later inS. unzima.Syllis amicarmillarissp. nov., is characterized by having an elongated body with relatively short, fusiform dorsal cirri and the presence of one or two pseudosimple chaeta on midbody parapodia by loss of blade and enlargement of shaft.Syllis unzimasp. nov. was found in high densities on culturedHolothuria scabraJaeger, 1833 with single specimens found on a culturedCrassostrea gigasThunberg, 1793 and on coralline algae, respectively, whileS. amicarmillariswas found mainly in sediment outside an abalone farm and less frequently on culturedHaliotis midaeLinnaeus, 1758. We discuss the possible benefits of the association withH. scabratoS. unzimasp. nov.

Descriptions of Two New Species of the Family Oribotritiidae (Acari: Oribatida: Euphthiracaroidea)

2011 ◽  
Vol 61 (4) ◽  
pp. 811-816
Author(s):  
Dong Liu ◽  
Wojciech Niedbała ◽  
Josef Starý
Keyword(s):  
New Species ◽  
The Family ◽  
Two New Species

New species of the genus Plonaphacarus (Oribatida, Steganacaridae) from China

2021 ◽  
Author(s):  
Dong Liu ◽  
Min Huang
Keyword(s):  
New Species ◽  
Congeneric Species ◽  
Anterior Border ◽  
The Family ◽  
Two New Species

Two new species belonging to the family Steganacaridae are described from Oriental part of China: Plonaphacarus luxiensis sp. nov. differs from Plonaphacarus concavus Liu, Wu & Chen, 2011 by the long and stout interlamellar and lamellar setae, lateral prodorsal carinae absent, exobothridial setae vestigial, anterodorsal part of notogaster not concave dorsally, notogastral setae c1 and anal setae short and spiniform, setae c1 positioned close to anterior border of notogaster and setae d on femora I distanced to distal end of segment; Plonaphacarus hailingensis sp. nov. differs from congeneric species by the presence of heterotrichy of notogastral setae, in which setae c1, c2 and c3 long and flagellate distally, prodorsum with median crista and posterior furrows, sensilli long and setiform, and rostral setae short, spiniform and semi-erect. A key to all known species of Plonaphacarus from China are provided to facilitate identification of this group.

Comments on “Is Copytus Skogsberg, 1939 (Crustacea: Ostracoda) a neocytherideid? With description of a new family and two new species” by Coimbra, Bergue & Ramos (2020)

Zootaxa ◽  
2021 ◽  
Vol 4950 (2) ◽  
pp. 398-400
Author(s):  
OKAN KÜLKÖYLÜOĞLU
Keyword(s):  
New Species ◽  
Integrated Approach ◽  
Taxonomic Position ◽  
New Family ◽  
As Species ◽  
Diagnostic Characteristics ◽  
The Family ◽  
Two New Species

Most recently, Coimbra et al. (2020) published an article in this journal (Zootaxa, 4729 (2): 177–194) questioning the taxonomic position of the genus Copytus Skogsberg, 1939 (Crustacea, Ostracoda) along with proposing it as the type genus of their new family (Copytidae Coimbra et al., 2020), and erecting two new species that were listed by previous authors as Copytus sp. 1 and Copytus sp. 2. The main diagnostic characteristics of their new proposed family (and the genus Copytus) are the hinge type and muscle scars on the carapace and/or valves (see lines 6–8 from the bottom, p. 179 in Coimbra et al. 2020). They also underlined that (p. 179) “...this study is based exclusively on the morphology of the animals’ hard parts”. While the authors considered another genus (Neocopytus) proposed by Külköylüoğlu, Colin & Kılıç (2007) of the family Neocytherididae as invalid, they interestingly transferred some species of Neocopytus to Copytus as species of their new family (Coimbra et al. 2020). Herein, my point with the comments listed below is to clarify that, when possible, both soft and hard parts should be considered in taxonomy, and such an integrated approach clearly indicates that Neocopytus is a valid and taxonomically useful genus. 

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