scholarly journals Morphological disparity and systematic revision of the eocrinoid genusRhopalocystis(Echinodermata, Blastozoa) from the Lower Ordovician of the central Anti-Atlas (Morocco)

2017 ◽  
Vol 91 (4) ◽  
pp. 685-714 ◽  
Author(s):  
Ninon Allaire ◽  
Bertrand Lefebvre ◽  
Elise Nardin ◽  
Emmanuel L.O. Martin ◽  
Romain Vaucher ◽  
...  
Keyword(s):  
Type Species ◽  
Strong Support ◽  
Original Description ◽  
Detailed Examination ◽  
Additional Species ◽  
Systematic Revision ◽  
Morphological Disparity ◽  
Historical Material ◽  
Lower Ordovician ◽  
Cladistic Analyses

AbstractThe genusRhopalocystis(Eocrinoidea, Blastozoa) is characterized by both a short stratigraphic range (Fezouata Shale, middle Tremadocian to middle Floian, Lower Ordovician) and a reduced geographic extension (Agdz-Zagora area, central Anti-Atlas, Morocco). Since the original description of its type species (R. destombesiUbaghs, 1963), three successive revisions of the genusRhopalocystishave led to the erection of nine additional species. The morphological disparity within this genus is here critically reassessed on the basis of both historical material and new recently collected samples. The detailed examination of all specimens, coupled with morphometric and cladistic analyses, points toward a relatively strong support for five morphotypes. A systematic revision ofRhopalocystisis thus suggested, with only five valid taxa:R. destombesi, R. fragaChauvel, 1971, R. grandisChauvel, 1971, R. havlicekiChauvel, 1978, andR. zagoraensisChauvel, 1971. The five others are considered as junior synonyms (R. dehirensisChauvel and Régnault, 1986,R. lehmaniChauvel and Régnault, 1986,R. sp. A,R. sp. B, andR. sp. C).

A replacement name for the poorly known illegitimate Paleogene genus Psilamonocolpites Y.K.Mathur (Ginkgoales)

Phytotaxa ◽  
2021 ◽  
Vol 500 (1) ◽  
pp. 57-58
Author(s):  
JOSÉ AMET RIVAZ HERNÁNDEZ
Keyword(s):  
New Species ◽  
Southern Hemisphere ◽  
Type Species ◽  
Scientific Literature ◽  
Original Description ◽  
Monotypic Genus ◽  
Additional Species ◽  
Sedimentary Environments ◽  
Kutch Basin ◽  
A New Species

The monotypic genus Psilamonocolpites Mathur (1966: 40) was established to classify a new species of gymnosperm’s pollen fossil, within the informal taxon Ginkgo-group, from Western Kutch, in India. Psilamonocolpites longicolpatus Mathur (1966: 40), collected in Paleogene Suppratrappean sediments of Kutch Basin, is the type species by monotypy. Despite the fact that some subsequent contributions to the original description of the species have been focused on increasing knowledge about the palynological paleoflora of Kutch Basin and other Paleogene sedimentary environments located in the southern hemisphere (Venkatachala & Kar 1968, Saxena 1977, Askin 1990, Zavada & de Villiers 2000, Gengwu et al. 2006, Mathews et al. 2013), the occurrence of Psilamonocolpites longicolpatus Y.K.Mathur has not been documented since, and remained largely ignored in the scientific literature, partly because it is known only from the holotype collected approximately 56 years ago. No additional species to the type species of the genus has been described to date.

scholarly journals Systematic revision of the genera Geckobiella Hirst, 1917 and Hirstiella Berlese, 1920 (Acari: Prostigmata: Pterygosomatidae) with description of a new genus for American species parasites on geckos formerly placed in Hirstiella

Zootaxa ◽  
2012 ◽  
Vol 3510 (1) ◽  
pp. 1 ◽  
Author(s):  
RICARDO PAREDES-LEÓN ◽  
HANS KLOMPEN ◽  
TILA M. PÉREZ
Keyword(s):  
New Species ◽  
Type Species ◽  
New Genus ◽  
Phylogenetic Analyses ◽  
Cladistic Analysis ◽  
Morphological Characters ◽  
Additional Species ◽  
Systematic Revision ◽  
The Third ◽  
A New Species

A cladistic analysis based on 274 morphological characters was performed including the 13 previously recognized speciesof the scale mite genus Hirstiella, 2 new species, 5 species in closely related genera, and 3 more distant out-group species.An analysis based on 148 informative characters resulted in one most parsimonious tree (L = 400, CI = 0.57 and RI =0.79). According to this, the genus Hirstiella in its current concept is a polyphyletic taxon whose member species belongto three different clades. The first lineage (Bremer support and jackknife values 2 and 78%) includes the type species H.trombidiiformis and seven additional species of Hirstiella that are parasites on iguanian lizards. The genus Geckobiella isincluded in this lineage, and the latter taxon name has priority over Hirstiella; therefore, the genus Hirstiella is considereda synonym of Geckobiella and no longer valid. For the second lineage (Bremer support and jackknife values of 2 and 73%)we propose the name Bertrandiella gen. nov.; it includes H. tenuipes, H. otophila, H. jimenezi and Bertrandiella chame-laensis sp. nov. The third lineage, and sister taxon of Bertrandiella, is a clade comprising Pimeliaphilus and the speciesH. sharifi and H. insignis. The latter taxa are transferred back to Pimeliaphilus (Bremer support and jackknife values >4and 100%). Updated diagnoses are provided for the genera Geckobiella sensu nov. (including a new species Geckobielladonnae sp. nov.) and Bertrandiella gen. nov., and for all their species, as well as for the genera Pimeliaphilus sensu nov.and Tequisistlana, based on the results of the phylogenetic analyses. The analyses support the hypothesis that lizards arethe ancestral hosts for Pterygosomatidae; associations with arthropods (in Pimeliaphilus) appear to be secondary, the result of host switching from lizards.

A new species of the genus Parapachymorpha Brunner von Wattenwyl, 1893 (Phasmida, Phasmatidae, Clitumninae) from Laos

Zootaxa ◽  
2020 ◽  
Vol 4732 (1) ◽  
pp. 196-200
Author(s):  
CHANG-MOON JANG ◽  
YANG˗SEOP BAE
Keyword(s):  
New Species ◽  
Body Surface ◽  
Type Species ◽  
Lateral View ◽  
Lower Margin ◽  
Additional Species ◽  
The World ◽  
A New Species ◽  
Egg Capsule

Parapachymorpha is one of eight genera within the tribe Medaurini of subfamily Clitumninae (Phasmatidae). It was established by Brunner von Wattenwyl (1893), with the type species Parapachymorpha nigra by subsequent designation of Kirby (1904), from Myanmar. Species of this genus are widely distributed in oriental tropics (Laos, China, Thailand, Myanmar, Vietnam and Cambodia), with only 11 known species in the world (Brock et al. 2018, Ho 2017). Species of the genus Parapachymorpha can be recognized by following characters (Brunner von Wattenwyl 1893;1907, Henmemann & Conle 2008, Ho 2017): 1) body robust in female and slender in male with long leg in relation to the length; 2) body surface of female granulose or spinose; 3) mesonotum of female more and less expanded posteriorly; 4) abdominal tergites lacking expanded prostero–lateral angles in both sexes; 5) laminal supraanalis undeveloped in female; 6) semi–tergite of male irregularly rectangular, with an additional finger­–like ventro–apical appendix on the lower margin and reduced or absent; 7) egg capsule oval to oblong and covered with a raised net–like structure in lateral view; 8) micropylar plate oval; 9) operculum concave or convex. In the present study, we describe additional species, Parapachymorpha minuta sp. nov. from Laos, with photographs of both sexes of adults and egg. 

Rediscovery and revision of Foenobethylus Kieffer, 1913  (Hymenoptera, Bethylidae)

Zootaxa ◽  
2007 ◽  
Vol 1546 (1) ◽  
pp. 1-14 ◽  
Author(s):  
GERGELY VÁRKONYI ◽  
ANDREW POLASZEK
Keyword(s):  
New Species ◽  
Natural History ◽  
Type Species ◽  
Original Description ◽  
Natural History Museum ◽  
History Museum

The bethylid genus Foenobethylus Kieffer, 1913, unstudied for almost a century, is redescribed and assigned to the subfamily Pristocerinae based on a preliminary phylogenetic assessment. Four new species: F. bidentatus n. sp. (Brunei), F. elongatus n. sp. (Malaysia), F. emiliacasellae n. sp. (Thailand), and F. thomascokeri n. sp. (Malaysia) are described, based on males only, as females remain unrecognised in this genus. All specimens are deposited in the Department of Entomology, the Natural History Museum, London, U.K. The type species F. gracilis Kieffer (Philippines), although unrepresented by any traceable specimen, can be distinguished from these species based on the original description. A key to the five known species of Foenobethylus is provided.

Flavobacterium akiainvivens sp. nov., from decaying wood of Wikstroemia oahuensis, Hawai‘i, and emended description of the genus Flavobacterium

2013 ◽  
Vol 63 (Pt_9) ◽  
pp. 3280-3286 ◽  
Author(s):  
Iris Kuo ◽  
Jimmy Saw ◽  
Durrell D. Kapan ◽  
Stephanie Christensen ◽  
Kenneth Y. Kaneshiro ◽  
...  
Keyword(s):  
Type Species ◽  
Original Description ◽  
Gliding Motility ◽  
Rrna Gene ◽  
Content Type ◽  
Phenotypic Differences ◽  
Whole Cells ◽  
Link Type ◽  
Decaying Wood ◽  
Type Strains

Strain IK-1T was isolated from decaying tissues of the shrub Wikstroemia oahuensis collected on O‘ahu, Hawai‘i. Cells were rods that stained Gram-negative. Gliding motility was not observed. The strain was oxidase-negative and catalase-positive. Zeaxanthin was the major carotenoid. Flexirubin-type pigments were not detected. The most abundant fatty acids in whole cells of IK-1T grown on R2A were iso-C15 : 0 and one or both of C16 : 1ω7c and C16 : 1ω6c. Based on comparisons of the nucleotide sequence of the 16S rRNA gene, the closest neighbouring type strains were Flavobacterium rivuli WB 3.3-2T and Flavobacterium subsaxonicum WB 4.1-42T, with which IK-1T shares 93.84 and 93.67 % identity, respectively. The G+C content of the genomic DNA was 44.2 mol%. On the basis of distance from its nearest phylogenetic neighbours and phenotypic differences, the species Flavobacterium akiainvivens sp. nov. is proposed to accommodate strain IK-1T ( = ATCC BAA-2412T = CIP 110358T) as the type strain. The description of the genus Flavobacterium is emended to reflect the DNA G+C contents of Flavobacterium akiainvivens IK-1T and other species of the genus Flavobacterium described since the original description of the genus.

Status of Nearctic subgenera of Microscydmus revisited (Coleoptera, Staphylinidae, Scydmaeninae)

Zootaxa ◽  
2017 ◽  
Vol 4358 (3) ◽  
pp. 532 ◽  
Author(s):  
PAWEŁ JAŁOSZYŃSKI
Keyword(s):  
Type Species ◽  
Detailed Examination ◽  
Junior Synonym

Nearctic Microscydmus Saulcy & Croissandeau includes species placed in Microscydmus s. str. and subgenera Delius Casey and Neladius Casey. The two latter taxa were originally described as genera, and all Nearctic species of Microscydmus s. str. were placed in a genus Opresus Casey, currently treated as a junior synonym. Detailed examination of the type species of Opresus, Delius and Neladius leads to the following conclusions and changes: Opresus is removed from synonymy with Microscydmus s. str. and placed as a subgenus of Microscydmus; Delius and Neladius are restored as genera. The two latter taxa belong to a group of glandulariine genera characterized by the submentum with lateral sutures, whereas Microscydmus does not have such structures. The type species of the studied genera and subgenera are redescribed: Microscydmus (Opresus) misellus (LeConte), comb. rest., Delius robustulus Casey, comb. rest., and Neladius tenuis Casey, comb. rest. Lectotypes are designated for Scydmaenus misellus LeConte, Delius robustulus Casey and Neladius tenuis Casey. 

Two new natatory asellote isopods (Crustacea) from the San Juan Archipelago, Baeonectes improvisus n. gen., n. sp. and Acanthamunnopsis milleri n. sp., with a revised description of A. hystrix Schultz

1982 ◽  
Vol 60 (12) ◽  
pp. 3332-3343 ◽  
Author(s):  
George D. Wilson
Keyword(s):  
Surface Waters ◽  
Type Species ◽  
Saline Water ◽  
Original Description ◽  
San Juan ◽  
The Family ◽  
Two New Species ◽  
Juan De Fuca ◽  
Taxonomic Concept ◽  
Highly Evolved

Two new species of asellote isopods from the waters surroundng the San Juan Archipelago are described and diagnosed. Baeonectes improvisus n. gen., n. sp. and Acanthamunnopsis milleri n. sp. belong to the highly evolved, natatory families Eurycopidae and Munnopsidae, respectively. Baeonectes, a circum-arctic and boreal shallow-water genus, also includes B. muticus (Sars), the type-species. The taxonomic concept of Acanthamunnopsis has difficulties that must be resolved before A. milleri can be described. To this end, the family Acanthamunnopsidae Schultz is invalidated and merged with the Munnopsidae; the genus Acanthamunnopsis Schultz is revised; and A. hystrix, the type-species, is redescribed with corrections and additions to the original description. The unusual presence of the bathypelagic genus Acanthamunnopsis in the surface waters of the San Juan Archipelago is discussed. Acanthamunnopsis milleri is tentatively postulated to be a deep resident of the open ocean that was carried landward into the Strait of Juan de Fuca by upwelled intrusions of cold, saline water.

scholarly journals Quid estClea helena?Evidence for a previously unrecognized radiation of assassin snails (Gastropoda: Buccinoidea: Nassariidae)

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3638 ◽  
Author(s):  
Ellen E. Strong ◽  
Lee Ann Galindo ◽  
Yuri I. Kantor
Keyword(s):  
Life History ◽  
Type Species ◽  
Species Complex ◽  
Aquarium Trade ◽  
Systematic Revision ◽  
Mitochondrial Coi ◽  
Phylogenetic Placement ◽  
Se Asia ◽  
The Family ◽  
The Us

The genusCleafrom SE Asia is from one of only two unrelated families among the megadiverse predatory marine Neogastropoda to have successfully conquered continental waters. While little is known about their anatomy, life history and ecology, interest has grown exponentially in recent years owing to their increasing popularity as aquarium pets. However, the systematic affinities of the genus and the validity of the included species have not been robustly explored. Differences in shell, operculum and radula characters support separation ofCleaas presently defined into two distinct genera:Clea, for the type speciesClea nigricansand its allies, andAnentomeforClea helenaand allies. A five-gene mitochondrial (COI, 16S, 12S) and nuclear (H3, 28S) gene dataset confirms the placement ofAnentomeas a somewhat isolated offshoot of the family Nassariidae and sister to the estuarineNassodonta. Anatomical data corroborate this grouping and, in conjunction with their phylogenetic placement, support their recognition as a new subfamily, the Anentominae. The assassin snailAnentome helena, a popular import through the aquarium trade so named for their voracious appetite for other snails, is found to comprise a complex of at least four species. None of these likely represents trueAnentome helenadescribed from Java, including a specimen purchased through the aquarium trade under this name in the US and one that was recently found introduced in Singapore, both of which were supported as conspecific with a species from Thailand. The introduction ofAnentome“helena” through the aquarium trade constitutes a significant threat to native aquatic snail faunas which are often already highly imperiled. Comprehensive systematic revision of this previously unrecognized species complex is urgently needed to facilitate communication and manage this emerging threat.

Taxonomic re-evaluation of the monotypic genus Pararhabdophis Bourret, 1934 (Squamata: Colubridae: Natricinae) with discovery of its type species, P. chapaensis, from China

Zootaxa ◽  
2018 ◽  
Vol 4486 (1) ◽  
pp. 31
Author(s):  
JIN-LONG REN ◽  
KAI WANG ◽  
TAO THIEN NGUYEN ◽  
CHUNG VAN HOANG ◽  
GUANG-HUI ZHONG ◽  
...  
Keyword(s):  
Natural History ◽  
Type Species ◽  
Yunnan Province ◽  
Strong Support ◽  
Taxonomic Position ◽  
Monotypic Genus ◽  
History Data ◽  
Lao Cai ◽  
Available Information ◽  
First Time

The Asian monotypic genus Pararhabdophis Bourret, 1934 has long been known from a single holotype of the type species Pararhabdophis chapaensis Bourret, 1934 only. The limited available information hampered the identification of the natricine species. On the basis of eight newly collected specimens of P. chapaensis from the type locality in Sa Pa, Lao Cai Province, Vietnam and from Pingbian, Yunnan Province in southwestern China, the taxonomic position of the genus Pararhabdophis was re-evaluated using both morphological and molecular datasets for the first time. Pararhabdophis chapaensis is nested within the genus Hebius Thompson, 1913 with strong support, and morphologically indistinguishable from the latter genus. As a consequence, we herein synonymize the genus Pararhabdophis with Hebius and discuss about the existing paraphyly of some Hebius species. In addition we report Hebius chapaensis for the first time from China and provide redescription and natural history data of this poorly known species. To facilitate future taxonomic work, an identification key to all known natricine genera from China and Vietnam is also provided. 

scholarly journals Molecular and morphological evidence reveal a new genus and species in Auriculariales from tropical China

MycoKeys ◽  
2018 ◽  
Vol 35 ◽  
pp. 27-39 ◽  
Author(s):  
Hai-Sheng Yuan ◽  
Xu Lu ◽  
Cony Decock
Keyword(s):  
New Species ◽  
Dna Sequences ◽  
Type Species ◽  
New Genus ◽  
Phylogenetic Analyses ◽  
Strong Support ◽  
Morphological Characteristics ◽  
Morphological Evidence ◽  
New Genus And Species ◽  
Tropical China

Grammatuslabyrinthinusgen. et sp. nov. is proposed based on DNA sequences data and morphological characteristics. It is known so far from southern, tropical China. The new species is characterised by an annual, resupinate basidiocarp with a shallow, subporoid hymenophore, a hymenium restricted to the bottom of the tubes, a dimitic hyphal system, presence of encrusted skeletocystidia and dendrohyphidia, longitudinally septate basidia and smooth, oblong-ellipsoid to cylindrical, acyanophilous basidiospores. Phylogenetic analyses based on ITS + nLSU DNA sequences data indicate that G.labyrinthinus belongs to Auriculariaceae in which it has an isolated position. Phylogenetic inferences show G.labyrinthinus to be related to Heteroradulum. However, the ITS sequences similarity between G.labyrinthinus and H.kmetii, the type species of Heteroradulum, were 89.84% and support the establishment of the new genus. Inversely, Heteroradulumsemis clustered with G.labyrinthinus with strong support and it is transferred to Grammatus.

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