A new cestode, Neoskrjabinolepis gvosdevi (Cyclophyllidea: Hymenolepididae) from the shrew Sorex tundrensis Merriam, 1900, in Kazakhstan

2010 ◽  
Vol 19 (1) ◽  
pp. 13-17
Author(s):  
S.A. Kornienko ◽  
V.D. Gulyaev ◽  
N.T. Erzhanov
Keyword(s):  
New Species ◽  
Middle Part ◽  
Basal Part ◽  
Fine Needle ◽  
Different Types

A cestode, Neoskrjabinolepis (Neoskrjabinolepidoides) gvosdevi sp. nov., is described from the tundra shrew Sorex tundrensis Merriam, 1900 in Kazakhstan. The new species has ten rostellar hooks, 0.40-0.43 mm long, with claw-liked blade with crooked middle part. It can be distinguished from other species in the subgenus by the cylindrical cirrus short, 0.45-0.50 mm long, and armed with different types of spines; the basal part covered with numerous small, rosethornshaped spines, and the middle and distal parts armed with fine, needle-shaped spines.

Ginkgophytes of the Ul’ya flora (the Ul’ya depresiion, the Okhotsk-Chukotka volcanogenic belt)

Palaeobotany ◽  
2016 ◽  
Vol 7 ◽  
pp. 80-95 ◽  
Author(s):  
L. B. Golovneva
Keyword(s):  
New Species ◽  
Early Cretaceous ◽  
Late Cretaceous ◽  
Middle Part ◽  
Leaf Length ◽  
Volcanogenic Belt ◽  
Short Shoots ◽  
Volcanogenic Deposits

The Ul’ya flora comes from the Coniacian volcanogenic deposits of the Amka Formation (the Ul'ya depression, southern part of the Okhotsk-Chukotka volcanogenic belt). Ginkgoaleans are diverse in this flora and represented by three genera: Ginkgo, Sphenobaiera and Baiera. All specimens have no cuticle and were assigned to morphotaxa. Genus Ginkgo includes two species: G. ex gr. adiantoides (Ung.) Heer with entire leaves and G. ex gr. sibirica Heer with dissected leaves. Genus Sphenobaiera also consists of two species: S. ex gr. longifolia (Pom.) Florin with 4–8 leaf lobes and S. ex gr. biloba Prynada with two leaf lobes. Genus Baiera is represented by new species B. lebedevii Golovn., sp. nov.Leaves of this species are 25–30 cm long and 13–16 cm wide, narrowly wedge-shaped with flat slender petiole, dichotomously dissected 4–5 times into linear segments 3–6 mm wide with 6–12 veins. The length of ultimate segments is equal to about a half of leaf length. Leaves attached spirally to ovoid short shoots about 2 cm long. Among the Late Cretaceous floras similar diversity of ginkgoaleans was recorded only in the Turonian-Coniacian Arman flora from middle part of the Okhotsk-Chukotka volcanogenic belt (Herman et al., 2016). Four species of ginkgoaleans from the Ul’ya flora (except G. ex gr. adiantoides) are considered as the Early Cretaceous relicts.

Taxonomic description and 3D modelling of a new species of myzostomid (Annelida, Myzostomida) associated with black corals from Madagascar

Zootaxa ◽  
2017 ◽  
Vol 4244 (2) ◽  
pp. 277 ◽  
Author(s):  
LUCAS TERRANA ◽  
IGOR EECKHAUT
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Three Dimensional ◽  
Close Relation ◽  
Ventral Side ◽  
Middle Part ◽  
The Body ◽  
Taxonomic Description ◽  
Black Corals ◽  
Organ Systems

Eenymeenymyzostoma nigrocorallium n. sp. is the first species of myzostomid worm associated with black corals to be described. Endoparasitic specimens of E. nigrocorallium were found associated with three species of antipatharians on the Great Reef of Toliara. Individuals inhabit the gastrovascular ducts of their hosts and evidence of infestation is, most of the time, not visible externally. Phylogenetic analyses based on 18S rDNA, 16S rDNA and COI data indicate a close relation to Eenymeenymyzostoma cirripedium, the only other species of the genus. The morphology of E. nigrocorallium is very unusual compared to that of the more conventional E. cirripedium. The new species has five pairs of extremely reduced parapodia located on the body margin and no introvert, cirri or lateral organs. Individuals are hermaphroditic, with the male and female gonads both being located dorsally in the trunk. It also has a highly developed parenchymo-muscular layer on the ventral side, and the digestive system lies in the middle part of the trunk. A three-dimensional digital model of this worm’s body plan has been constructed whereby the external morphology and in toto views of the observed organ systems (nervous, digestive and reproductive) can be viewed on-screen: http://doi.org/10.13140/RG.2.2.17911.21923. 

Two new species of Campanula (Campanulaceae) from the island of Santo Antão, Cabo Verde archipelago

Phytotaxa ◽  
2015 ◽  
Vol 197 (2) ◽  
pp. 104 ◽  
Author(s):  
Mathieu Laurent Gardère
Keyword(s):  
New Species ◽  
Middle Part ◽  
Cabo Verde ◽  
Two New Species ◽  
Distinguishing Features

Two new species Campanula feijoana and Campanula hortelensis, long identified as C. jacobaea, are described and illustrated. The news species are endemic to the island of Santo Antão (Cabo Verde archipelago) and morphologically close to C. jacobaea, but are distinguishable by their unique floral characteristics. Some of these distinguishing features are shared between C. feijoana and C. hortelensis, i.e. narrow triangular sepals, and a tubular corolla constricted around the middle part with explanate or revolute lobes.

scholarly journals Die Gattung Erratencrinurus Krueger, 1971 (Trilobita; Ordovizium) aus baltoskandischen Geschieben

Fossil Record ◽  
2004 ◽  
Vol 7 (1) ◽  
pp. 69-132
Author(s):  
H.-H. Krueger
Keyword(s):  
New Species ◽  
Hard Rock ◽  
Late Ordovician ◽  
Middle Ordovician ◽  
Different Types ◽  
Single Spine ◽  
Pore Canals ◽  
Different Parts

Aus der mittel- bis oberordovizischen Trilobitenfamilie Encrinuridae, die in Baltoskandia durch die Untergattungen <i>Erratencrinurus</i> und <i>Celtencrinurus</i> repräsentiert wird, werden achtzehn Arten beschrieben, darunter die vier neuen Arten <i>Erratencrinurus (E.) sellinensis, E. (E.) heinrichi, E. (E.) praecapricornu</i> und <i>E. (E.) rhebergeni</i>. Das überwiegende Material stammt aus dem schwer zu präparierenden Ostseekalk. Die Tripp'sche Tuberkelformel wurde der <i>Erratencrinurus</i>-Gruppe angepasst; innerhalb der <i>Erratencrinurus</i>-Gruppe können drei verschiedene Schilder-Typen des scutum rostrale nachgewiesen werden. Unterschiedliche Tuberkeltypen bis hin zu extremen Stacheln wurden beschrieben. Außerdem kann eine Reduzierung von drei Thoraxialstacheln im Mittelordovizium zu einem im oberen Oberordovizium festgestellt werden. Verschiedene Regionen des Panzers von <i>Erratencrinurus (E.) sellinensis</i>, die Porenkanäle besitzen, werden dargestellt. Ein neuer Häutungstyp kann an Panzerhemden von <i>Erratencrinurus (E.) seebachi</i> beschrieben werden. <br><br> In Baltoscandia the Middle to Late Ordovician trilobite family <i>Encrinurida</i> is represented by the two subgenera <i>Erratencrinurus</i> and <i>Celtencrinurus</i>. Out of these 18 species, four new species are described herein. Most of the material comes from the Ostseekalk which is an extremely hard rock and thus difficult to preparate. The tubercle formula after Tripp is applied to the <i>Erratencrinurus</i> group and led to the distinction of three different types of scutum rostrale shields. Various types of tubercles which may even pass into extreme spines are described. The number of thoracic spines becomes reduced from three spines in Middle Ordovician taxa to a single spine in youngest Ordovician species. Different parts of the carapace of <i>Erratencrinurus sellinensis</i> with pore canals are illustrated and a new moulting type of E. <i>seebachi</i> is introduced. New species are <i>E. sellinensis. E. heinrichi, E. praecapricornu and E. (E.) rhebergeni.</i> <br><br> doi:<a href="http://dx.doi.org/10.1002/mmng.20040070106" target="_blank">10.1002/mmng.20040070106</a>

scholarly journals On the diversity of the SE Indo-Pacific species ofTerebellides(Annelida; Trichobranchidae), with the description of a new species

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2313 ◽  
Author(s):  
Julio Parapar ◽  
Juan Moreira ◽  
Daniel Martin
Keyword(s):  
New Species ◽  
Morphological Characteristics ◽  
Relative Length ◽  
Andaman Sea ◽  
Species Discrimination ◽  
Pacific Waters ◽  
Routine Monitoring ◽  
Different Types ◽  
Pacific Species ◽  
A New Species

The study of material collected during routine monitoring surveys dealing with oil extraction and aquaculture in waters off Myanmar (North Andaman Sea) and in the Gulf of Thailand, respectively, allowed us to analyse the taxonomy and diversity of the polychaete genusTerebellides(Annelida). Three species were found, namelyTerebellidescf.woolawa,Terebellides hutchingsaespec. nov.(a new species fully described and illustrated), andTerebellidessp. (likely a new species, but with only one available specimen). The new species is characterised by the combination of some branchial (number, fusion and relative length of lobes and papillation of lamellae), and thoracic (lateral lobes and relative length of notopodia) characters and is compared with all species described or reported in the SW Indo-Pacific area, as well as with those sharing similar morphological characteristics all around the world. The taxonomic relevance of the relative length of branchial lobes and different types of ciliature in branchial lamellae for species discrimination in the genus is discussed. A key to allTerebellidesspecies described in SE Indo-Pacific waters is presented.

The Thyroid Gland: Recurring Problems in Histologic and Cytologic Evaluation

2008 ◽  
Vol 132 (4) ◽  
pp. 622-632
Author(s):  
William C. Faquin
Keyword(s):  
Thyroid Gland ◽  
Follicular Adenoma ◽  
Endocrine System ◽  
Follicular Carcinoma ◽  
Needle Aspiration ◽  
Fine Needle ◽  
Poorly Differentiated Carcinoma ◽  
Different Types ◽  
Poorly Differentiated ◽  
Common Malignancy

Abstract Nodules of the thyroid gland are frequently encountered, occurring in up to 7% of the population, and although most of these nodules are benign, carcinomas of the thyroid gland are the most common malignancy of the endocrine system. Although the different types of thyroid carcinoma are few, a wide variety of recurring problems exists in both their histologic and cytologic evaluation. Here, I will review a selected group of problematic areas, including unusual histologic variants of follicular adenoma, criteria for diagnosing minimally invasive follicular carcinoma, the use of fine-needle aspiration as a screening test for follicular neoplasia, challenging variants of papillary carcinoma, and features of poorly differentiated carcinoma.

Sicyonella liui sp. nov., a new sergestid shrimp (Decapoda, Dendrobranchiata) discovered from Madagascar

Crustaceana ◽  
2020 ◽  
Vol 93 (11-12) ◽  
pp. 1383-1390
Author(s):  
Tin-Yam Chan
Keyword(s):  
New Species ◽  
New Genus ◽  
Basal Part ◽  
A New Species

Abstract A new species of the sergestid shrimp genus Sicyonella Borradaile, 1910 was discovered in a recent expedition to southern Madagascar. The presence of Sicyonella in Madagascar is also a new genus record for the country. The new species has the petasma and thelycum very different from the three known species of the genus, and is also unique in the basal part of the mesial antennular flagellum not being modified in males.

Rubus prissanicus (Rosaceae), a new bramble species from North West Poland

Phytotaxa ◽  
2018 ◽  
Vol 344 (3) ◽  
pp. 239 ◽  
Author(s):  
PIOTR KOSIŃSKI ◽  
TOMASZ MALIŃSKI ◽  
ELWIRA SLIWINSKA ◽  
JERZY ZIELIŃSKI
Keyword(s):  
New Species ◽  
Leaf Surface ◽  
Broadleaf Forest ◽  
North West ◽  
Inflorescence Axis ◽  
Abaxial Leaf Surface ◽  
Different Types ◽  
Main Component ◽  
North Western ◽  
Forest Habitats

Rubus prissanicus, a new regional apomictic species, is described from north-western Poland. It is similar to R. lindleianus and R. langei, however it differs from the former species by broader leaflets and less numerous prickles on the inflorescence axis, and from the latter by unequally serrate leaflet margin, and from both these species by different types of trichomes on abaxial leaflet surface. Unlike other Polish species of R. ser. Rhamnifolii, in which the indumentum of abaxial leaf surface consists mainly of branched hairs, simple trichomes are the main component of indumentum of R. prissanicus leaves. The new species has been observed mainly on fertile soils, in broadleaf forest habitats, usually in fairly sunny places, along forest margins, by forest roads, in clearings, and in wayside thickets.

Mid-Furongian trilobites and agnostids from the Wujiajiania lyndasmithae Subzone of the Elvinia Zone, McKay Group, southeastern British Columbia, Canada

2020 ◽  
Vol 94 (4) ◽  
pp. 653-680
Author(s):  
Brian D.E. Chatterton
Keyword(s):  
British Columbia ◽  
New Species ◽  
Rare Species ◽  
Trace Fossils ◽  
Middle Part ◽  
Type Material ◽  
Younger Age ◽  
Two New Species ◽  
New Localities ◽  
A New Species

AbstractA well-preserved fauna of largely articulated trilobites is described from three new localities close to one another in the Bull River Valley, southeastern British Columbia. All the trilobites from these localities are from the lower or middle part of the Wujiajiania lyndasmithae Subzone of the Elvinia Zone, lower Jiangshanian, in the McKay Group. Two new species are proposed with types from these localities: Aciculolenus askewi and Cliffia nicoleae. The trilobite (and agnostid) fauna from these localities includes at least 20 species: Aciculolenus askewi n. sp., Agnostotes orientalis (Kobayashi, 1935), Cernuolimbus ludvigseni Chatterton and Gibb, 2016, Cliffia nicoleae n. sp., Elvinia roemeri (Shumard, 1861), Grandagnostus? species 1 of Chatterton and Gibb, 2016, Eugonocare? phillipi Chatterton and Gibb, 2016, Eugonocare? sp. A, Housia vacuna (Walcott, 1912), Irvingella convexa (Kobayashi, 1935), Irvingella flohri Resser, 1942, Irvingella species B Chatterton and Gibb, 2016, Olenaspella chrisnewi Chatterton and Gibb, 2016, Proceratopyge canadensis (Chatterton and Ludvigsen, 1998), Proceratopyge rectispinata (Troedsson, 1937), Pseudagnostus cf. P. josepha (Hall, 1863), Pseudagnostus securiger (Lake, 1906), Pseudeugonocare bispinatum (Kobayashi, 1962), Pterocephalia sp., and Wujiajiania lyndasmithae Chatterton and Gibb, 2016. Pseudagnostus securiger, a widespread early Jiangshanian species, has not been previously recorded from southeastern British Columbia. Non-trilobite fossils collected from these localities include brachiopods, rare trace fossils, a complete silica sponge (Hyalospongea), and a dendroid graptolite. The faunas from these localities are more diverse and better preserved than those from other previously documented localities of the same age in the region.Additional specimens of a rare species, found by amateur collectors in previously documented localities of slightly younger age (upper part of Wujiajiania lyndasmithae Subzone) in the same region, are documented. These new specimens, when combined with an earlier discovered specimen, provide adequate type material to propose a new species of Labiostria, L. gibbae, which may be useful for biostratigraphy.UUID:http://zoobank.org/89551eac-b3af-4b2b-8ef3-7c2e106a560d

Mallomonas gusakovii sp. nov. (Chrysophyceae, Synurales), a new species from Phu Quoc Island, Vietnam

Phytotaxa ◽  
2019 ◽  
Vol 406 (3) ◽  
pp. 199-205
Author(s):  
EVGENIY S. GUSEV ◽  
DMITRY A. KAPUSTIN ◽  
NIKITA A. MARTYNENKO ◽  
ELENA E. GUSEVA ◽  
MAXIM S. KULIKOVSKIY
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
New Species ◽  
Scale Morphology ◽  
Southern Vietnam ◽  
Silica Scale ◽  
Different Types ◽  
Means Of Transmission ◽  
A New Species ◽  
Scanning Electron

Mallomonas gusakovii sp. nov. is described from Vietnam based on silica-scale morphology studied by means of transmission and scanning electron microscopy. This species belongs to section Quadratae and is characterized by large and broad scales of three types with an internal reticulation, V-shaped rib and a forward projecting wing. Different types of the V-shaped rib in taxa from section Quadratae are discussed. Scales of Mallomonas gusakovii were found only in two sites in Phu Quoc Island, Southern Vietnam.

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