scholarly journals Discovery of a new species of the genus Stygepactophanes from a groundwater-fed spring in southern France (Crustacea, Copepoda, Harpacticoida, Canthocamptidae)

ZooKeys ◽  
2019 ◽  
Vol 812 ◽  
pp. 69-91
Author(s):  
Diana M.P. Galassi ◽  
Frank Fiers ◽  
Marie-Josè Dole-Olivier ◽  
Barbara Fiasca

A new species of the genusStygepactophanesMoeschler & Rouch, 1984 (Copepoda, Harpacticoida, Canthocamptidae) is established to accommodate a small canthocamptid population collected from a spring system in the “Parc du Mercantour”, Var catchment, southern France. The population analysed in the present study is defined by a set of morphological characters of the female, namely a very large maxilliped, a rudimentary mandibular palp, P1 with 3-segmented exopod and 2-segmented endopod, a falcate terminal claw of the P1 endopod, dorsal seta of caudal rami inserted on the inner margin, and anal operculum not overreaching the insertion of the caudal rami, thus supporting its assignment into the genusStygepactophanes. The new speciesStygepactophanesoccitanusshows marked differences with the nominotypical species of the genus that was originally described by monotypy with the speciesStygepactophanesjurassicusMoeschler & Rouch, 1984. The main diagnostic traits ofS.jurassicusare the absence of the P5 and a falcate outer terminal claw of P1 endopod.Stygepactophanesjurassicusalso shows a reduced armature of the antennal exopod, bearing one seta, 1-segmented P2–P4 endopods, a reduced armature of P2–P4 exopodal segments 3 (3,4,4 armature elements, respectively), P6 bearing only one long seta, a rounded short and smooth anal operculum. Conversely the female ofS.occitanusGalassi & Fiers,sp. n.has a well-developed P5, with rudimentary intercoxal sclerite, together with a falcate outer terminal claw of P1 endopod, antennal exopod bearing two elements, P4 endopod 1-segmented versus 2-segmented in P2–P3, P2–P4 exopodal segment 3 with five armature elements, P6 with three setae of different lengths, rounded anal operculum, bearing 3–4 strong spinules.According to our present knowledge,S.occitanusGalassi & Fiers,sp. n.is assigned to the genusStygepactophanesas the most conservative solution, waiting for the male to be discovered. The genusStygepactophanesrepresents a distinct lineage within the harpacticoid family Canthocamptidae that colonised southern European groundwater, the genus being known only from the saturated karst in Switzerland and a fissured saturated aquifer in southern France. Both species of the genus are stygobites and narrow endemics, the nominotypical species being known from the type locality Source de la Doux in Délemont (Switzerland), andS.occitanusGalassi & Fiers,sp. n.described herein from a spring system of the Var catchment (France).

Phytotaxa ◽  
2017 ◽  
Vol 303 (1) ◽  
pp. 47 ◽  
Author(s):  
YUAN YUAN ◽  
YUSUFJON GAFFOROV ◽  
YUAN-YUAN CHEN ◽  
FANG WU

Antrodia uzbekistanica sp. nov. is described and illustrated from juniper trees in Uzbekistan based on morphological characters and molecular evidence. It is characterized by producing annual, resupinate basidiome with large pores (1–2 per mm), a dimitic hyphal structure with clamp connections on generative hyphae, hyaline, thin-walled and cylindric basidiospores (6.5–8 × 2.7–3 µm), the presence of thick-walled and cyanophilous chlamydospores, and by causing a typical brown rot of Juniperus seravschanica in arid and semi-arid regions of Uzbekistan. The new species resembles Antrodia sinuosa macroscopically, but this species differs by having smaller basidiospores (4–6 × 1–2 µm), lacking of chlamydospores, and growing on wood of Pinaceae species. In nuclear large subunit rDNA (nLSU) and internal transcribed spacer (ITS) based phylogenies, the new species formed a distinct lineage in the Antrodia clade, and it is closely related to A. juniperina, which differs by having perennial, effused-reflexed basidiome with nodulose or round edged pilei, daedaleoid to labyrinthine pores, and larger and narrowly ellipsoid basidiospores (6.5–9 × 2.5–3.5 µm).


Zootaxa ◽  
2011 ◽  
Vol 2925 (1) ◽  
pp. 1 ◽  
Author(s):  
MERCEDES CONRADI ◽  
Mª EUGENIA BANDERA

Six years ago, an ongoing sampling programme to seek symbiont copepods was initiated in the Strait of Gibraltar. Most of the copepod species reported in this area (48%) belonged to the families Notodelphyidae and Botryllophilidae and nearly 30% of them were new to science. This paper describes a new species of Asterocheres (Asterocheridae, Siphonostomatoida) and redescribes two poorly known species of this genus. Asterocheres tarifensis n. sp. was found living in association with Astroides calycularis, a coral that hosts a variety of symbiotic copepods. This new species differs from its congeners by the possession of the following combined characters: body cyclopiform, 21-segmented antennule in female, 2-segmented mandibular palp, siphon reaching the insertion of maxilliped, maxilla without aesthetasc, maxilliped 5-segmented, armature of the antennary exopod consisting of two setae, inner lobe and outer lobe of maxillule each armed with four setae, genital area armed with two setae, fifth leg exopod with three setae, and caudal rami about as long as wide. Furthermore, two poorly known Asterocheres species are redescribed revealing some discrepancies with their previous descriptions. Asterocheres minutus is characterized by having a 21-segmented antennule, a very short oral siphon, a 1-segmented mandibular palp, and the two lobes of the maxillule with a similar length. The cladistic model of budding hypothesis is proposed for the origin of the two sibling Asterocheres species: A. minutus and A. echinicola. Asterocheres siphonatus is distinguished by a combination of characters that include a 21-segmented antennule, an oral siphon extending to the intercoxal plate of leg 4 and the 1-segmented mandibular palp. The controversy concerning the name of this species is also studied.


Zootaxa ◽  
2021 ◽  
Vol 5051 (1) ◽  
pp. 101-116
Author(s):  
SANTIAGO GAVIRIA ◽  
DANIELLE DEFAYE

Maraenobiotus wellsi sp. nov. (Canthocamptidae) is described based on material collected in mosses in the “páramo” region of the Andean Cordillera of Colombia. The new species is closely related to M. australis Apostolov, 2001 from Tierra de Fuego in Argentina, but can be distiguished by the shape of the caudal rami, the insertion point of its terminal seta IV, and the chaetotaxy of distal segments of legs 3 and 4. We discuss morphological differences with other congeners inhabiting South America (Peru), i.e. M. naticochensis Delachaux, 1917, M. fontinalis Harding, 1955 and M. fontinaloides Löffler, 1960. Major distinguishing features were observed in the chaetotaxy of legs 2 and 3, the morphology and size of the caudal rami, and the ornamentation of the anal operculum. We also discuss morphological characters that distinguish the new species from those living exclusively in mosses, such as M. cuspidatus Štěrba, 1968 and M. canadensis Flössner, 1992, and those reported from mosses and other habitats i.e.. M. vejdovskyi Mrázek, 1893, M. brucei brucei (Richard, 1898), M. zschokkei Kreis, 1920, M. brucei himalayensis Chappuis, 1928b, M. truncatus (Gurney, 1932), M. insignipes elgonensis Chappuis, 1936, M. insignipes nepalensis Löffler, 1968 and M. kinabaluensis Löffler, 1973. A distribution map of American species and an identification key for females are provided.  


Phytotaxa ◽  
2019 ◽  
Vol 403 (1) ◽  
pp. 47 ◽  
Author(s):  
NARUEMON HUANRALUEK ◽  
CHAYANARD PHUKHAMSAKDA ◽  
CHANOKNED SENWANNA ◽  
SINANG HONGSANAN ◽  
RUVISHIKA S. JAYAWARDENA ◽  
...  

Verruconis heveae, a new species accommodated in Sympoventuriaceae was isolated from dried latex on bark of a rubber tree (Hevea brasiliensis) collected from Phayao Province, Thailand. The comparison of its morphological characters distinguished V. heveae from other Verruconis species by having brown, woolly mycelium on the natural substrate and solitary, ellipsoidal to subglobose, 1–3 septate conidia. Phylogenetic analysis of a combined LSU and ITS dataset revealed a distinct lineage within Sympoventuriaceae.


Phytotaxa ◽  
2019 ◽  
Vol 387 (2) ◽  
pp. 165-171 ◽  
Author(s):  
RUI DU ◽  
LI WANG ◽  
MENG ZHOU ◽  
JIAJIA CHEN

A new poroid wood- rotting fungus, Sidera vesiculosa, is described from Singapore based on morphological characters and phylogenetic analysis. The species is characterized by annual, resupinate and waxy fresh basidiocarps, small pores measuring 7–9 per mm, a monomitic hyphal system with vesicular cells, the presence of rosette-like crystals, allantoid to lunate basidiospores measuring 2.9–3.7 × 0.6–1.0 μm, and causing a white rot. Phylogenetic analysis inferred from ITS and nLSU sequences indicates that the new species forms a distinct lineage with strong support and is closely related to Sidera lowei.


2020 ◽  
Vol 45 (2) ◽  
pp. 328-333
Author(s):  
Camila Alcantara ◽  
Gleison Soares ◽  
Francisco de Assis Ribeiro dos Santos ◽  
Marccus Alves

Abstract—Justicia rubrobracteata, a new species from northeastern Brazil, is described and illustrated. The new species is morphologically similar to J. aequilabris due to its shrubby habit, and terminal and axillary spicate inflorescences with red flowers. However, J. rubrobracteata is differentiated mainly by the shape and color of its bracts and bracteoles as well as an orangish macula in the corolla, and a torulose capsule. In addition, J. rubrobracteata is only known from northeastern Brazil, from the states of Paraíba and Rio Grande do Norte, while J. aequilabris is widely distributed in Bolivia, Brazil, and Paraguay. A table with the main morphological characters of both species is included, as well as photographs, a key to species of Justicia for the states of Paraíba and Rio Grande do Norte in northeastern Brazil, a distribution map of both species, and conservation data for the new species.


2020 ◽  
Vol 29 (1) ◽  
pp. 138-154
Author(s):  
R.V. Smirnov ◽  
O.V. Zaitseva ◽  
A.A. Vedenin

A new species of Pogonophora obtained from one station at a depth of 25 m from near the Dikson Island in the Kara Sea is described. Galathealinum karaense sp. nov. is one of the largest pogonophorans, the first known representative of the rare genus Galathealinum Kirkegaard, 1956 in the Eurasian part of the Arctic Ocean and a highly unusual finding for the desalted shallow of the Yenisey Gulf. Several characters occurring in the new species are rare or unique among the congeners: under-developed, hardly discernible frills on the tube segments, extremely thin felted fibres in the external layer of the tube, and very faintly separated papillae in the anterior part of the trunk. Morphological characters useful in distinguishing species within the genus Galathealinum are defined and summarised in a table. Diagnosis of the genus Galathealinum is emended and supplemented by new characters. Additionally, three taxonomic keys are provided to the species of Galathealinum and to the known species of the Arctic pogonophorans using either animals or their empty tubes only, with the brief zoogeographical information on each Arctic species.


2011 ◽  
Vol 20 (1) ◽  
pp. 85-95 ◽  
Author(s):  
S.A. Belokobylskij ◽  
T.S. Kostromina

Two braconid genera from the subfamily Alysiinae, Lodbrokia Hedqvist, 1962 and Asyntactus Marshall, 1898, are recorded in the fauna of Russia and in the Asian continent for the first time. A new species Lodbrokia uralica sp. nov. is described from the Urals, and a key to species of this genus is provided. Redescriptions of the female and male of Asyntactus rhogaleus Marshall, 1898 with information about the level of variability of its morphological characters are given. Asyntactus sigalphoides Marshall, 1898 is synonymised with A. rhogaleus Marshall, 1898 (syn. nov.).


2019 ◽  
Vol 27 (4) ◽  
pp. 238-247
Author(s):  
Massoud Ranjbar ◽  
Narges Rahchamani

Scrophularia dianatnejadii Ranjbar & Rahchamani, a new species from Tehran Province in northern Iran, is described and illustrated. It is closely related to S. amplexicaulis Benth. and shares with it some diagnostic morphological characters such as habit, plant indument, phyllotaxy, and corolla shape and color. Both species are placed in Scrophularia L. sect. Mimulopsis Boiss. Macro- and micromorphological characters of the two are examined and compared. Pollen morphology of these species is investigated using SEM. Detailed descriptions, illustrations, distribution maps, and conservation status of both species are provided.


Zootaxa ◽  
2021 ◽  
Vol 4927 (2) ◽  
pp. 197-208
Author(s):  
FRANCESCO BALLARIN ◽  
TAKESHI YAMASAKI ◽  
YONG-CHAO SU

Representatives of some poorly known spider species collected in the rainforest litter of the Orchid Island (Taiwan) are illustrated and discussed here. A new species, Brignoliella tao sp. nov. (Fam. Tetrablemmidae), endemic to Orchid Island, is described based on both sexes. The previously unknown female of Theridiosoma triumphale Zhao & Li, 2012 (Fam. Theridiosomatidae), is described for the first time. Zoma taiwanica (Zhang, Zhu & Tso 2006) comb. nov., from the same family, is illustrated and its transfer from the genus Theridiosoma O. Pickard-Cambridge, 1879 to Zoma Saaristo, 1996 is proposed on the basis of morphological characters. Habitus and genitalia of the endemic species Gongylidioides angustus Tu & Li, 2006 (Fam. Linyphiidae) are also illustrated. 


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