scholarly journals Morphology and phylogeny of three trachelocercids (Protozoa, Ciliophora, Karyorelictea), with description of two new species and insight into the evolution of the family Trachelocercidae

2016 ◽  
Vol 177 (2) ◽  
pp. 306-319 ◽  
Author(s):  
Ying Yan ◽  
Yuan Xu ◽  
Saleh A. Al-Farraj ◽  
Khaled A. S. Al-Rasheid ◽  
Weibo Song
Keyword(s):  
New Species ◽  
The Family ◽  
Two New Species ◽  
Protozoa Ciliophora ◽  
Insight Into

First amber fossils of the extinct family Protopsyllidiidae, and their phylogenetic significance among Hemiptera

2003 ◽  
Vol 34 (3) ◽  
pp. 329-344 ◽  
Author(s):  
David Grimaldi
Keyword(s):  
New Species ◽  
New Genus ◽  
Sister Group ◽  
First Record ◽  
Western Hemisphere ◽  
Late Permian ◽  
Phylogenetic Significance ◽  
The Family ◽  
Two New Species ◽  
Insight Into

AbstractTwo new species of a new genus, Postopsyllidium rebeccae and P. emilyae, are described, which are preserved in amber from northern Myanmar and central New Jersey, USA (100-90 myo), respectively. These are the first specimens of the hemipteran family Protopsyllidiidae found in amber and the latest occurrence of the family, some 50 my later than previous records; all others are compressions in rocks (many of them just wings) from the Late Permian to the Early Cretaceous. Postopsyllidium emilyae is also the first record of the group from the Western Hemisphere. A catalogue of Protopsyllidiidae is provided as well as an hypothesis of phylogenetic relationships among genera, though monophyly of the family is ambiguous. Postopsyllidium appears to be a recently derived genus, and four genera are removed from the family. Complete preservation in amber allows new insight into relationships, specifically that Postopsyllidium, and perhaps most or all Protopsyllidiidae, represent an extinct sister group to the Sternorrhyncha that retain features of some Auchenorrhyncha. Radiations of true Sternorrhyncha began in the Jurassic and Cretaceous, by which time the Protopsyllidiidae were apparently already relicts.

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. 

Two new species of stalked crinoids from the northeastern Pacific in the genera Gephyrocrinus and Ptilocrinus (Echinodermata, Crinoidea, Hyocrinidae). Effects of ontogeny and variability on hyocrinid taxonomy

Zootaxa ◽  
2011 ◽  
Vol 2825 (1) ◽  
pp. 1 ◽  
Author(s):  
MICHEL ROUX ◽  
PHILIP LAMBERT
Keyword(s):  
British Columbia ◽  
New Species ◽  
Single Species ◽  
Depth Range ◽  
Evolutionary Trend ◽  
Exceptional Collection ◽  
The Family ◽  
Two New Species ◽  
Northeastern Pacific ◽  
Stalked Crinoids

Two new species of deep-sea stalked crinoids belonging to the family Hyocrinidae were collected in the northeastern Pacific. The descriptions contain detailed information on character variations and ontogeny. The five specimens of Gephyrocrinus messingi n. sp. lived at depths ranging from 1,777 m to 2,110 m off British Columbia and California. This new species is the first record of the genus Gephyrocrinus in the Pacific Ocean, which was previously known from only a single species, G. grimaldii, from the northeastern Atlantic at the same depth range. The two species illustrate opposing phenotypes within the same genus. Fifty-eight specimens of the second new species, Ptilocrinus clarki n. sp., were dredged off British Columbia close to the type-locality of P. pinnatus, the type species of the genus Ptilocrinus, but at shallower depths ranging from 1,178 to 1,986 m. This exceptional collection provides significant data on intraspecific variation in the main morphological characters, especially arm pattern. The ontogeny of stalk articulations and the main traits of adoral plate differentiation are described in detail. A complementary investigation on P. pinnatus was conducted using specimens collected by the “Albatross” expedition at a depth of 2,906 m. Despite similarities in external morphology, tegmen and cover plates, the two ptilocrinid species display significant differences in pinnule architecture, aboral cup and stalk articulations. From comparison with Gephyrocrinus messingi n. sp. and Ptilocrinus clarki n. sp., G. grimaldii and P. pinnatus are interpreted as the result of heterochronic development by paedomorphy after ecological or geographic isolation. Pinnule architecture in the two new species suggests first steps in an evolutionary trend toward a rigid box which protects gonad inflation in the proximal part of the pinnule. These new data on Ptilocrinus and Gephyrocrinus create problems in the current taxonomy of the family Hyocrinidae. The main derived characters, especially in pinnule and arm pattern, are used to propose new hypotheses for hyocrinid phylogeny.

Sign in / Sign up

Export Citation Format

Share Document