The morphology of the dorsal and ventral skin of Triturus karelinii (Caudata: Salamandridae)

Biologia ◽  
2011 ◽  
Vol 66 (2) ◽  
Author(s):  
Ozlem Bingol-Ozakpinar ◽  
Osman Murathanoglu
Keyword(s):  
Light Microscopy ◽  
Morphological Traits ◽  
Morphological Characteristics ◽  
The Other ◽  
Histochemical Analysis ◽  
Males And Females ◽  
First Time ◽  
Ventral Skin ◽  
Diverse Density ◽  
Unusual Finding

AbstractIn this study, for the first time, the morphology of the dorsal and ventral skin of Triturus karelinii using light microscopy through histochemical methods was described. The skin exhibited basic morphological characteristics of the other urodeles: the epidermis composed of keratinized stratified epithelium with numerous conical protrusions and the dermis subdivided into spongy and compact layers. In the spongious dermis, three distinct types of glands were observed, namely serous, mucous and mixed glands. These glands were alveolar and occurred in both males and females. The morphologies of all three skin glands differed from anurans and other urodeles, having peculiar characteristics. Serous glands exhibited three different appearances. An unusual finding in mucous glands was the different appearance of their granules, showing diverse density after staining with PAS and AB. The histochemical analysis clearly demonstrated the presence of neutral, acid and sulfated mucins in the adenocytes of mucous glands. Mixed glands formed by mucous and serous glands exhibited the same morphological traits of both types of glands. Light microscopic observations revealed that the dorsal and ventral skin showed structural similarities with some minor differences, possibly resulting from their functions.

The ontogeny of morphological traits in three European species of Cosmochthonius Berlese, 1910 (Acari: Oribatida: Cosmochthoniidae)

Zootaxa ◽  
2011 ◽  
Vol 3034 (1) ◽  
pp. 1 ◽  
Author(s):  
STANISŁAW SENICZAK ◽  
RITVA PENTTINEN ◽  
ANNA SENICZAK
Keyword(s):  
Light Microscopy ◽  
Morphological Traits ◽  
The Other ◽  
European Species ◽  
Sem Micrographs ◽  
Juvenile Stages ◽  
First Time

The morphology of juvenile stages and ontogeny of Cosmochthonius reticulatus Grandjean, 1947, C. foliatus Subías, 1982, and C. ugamaensis Gordeeva, 1980 are described and illustrated for the first time, and compared to the adults. Juveniles of these species differ mainly by the number of cilia on hypertrophied setae of e- and f-series, the shape of seta h 1 in the larva, and the shape of posterior gastronotal setae in nymphs. Cosmochthonius reticulatus has the fewest cilia on these setae, while the larva of C. ugamaensis and the nymphs and adult of C. foliatus have the most. In all species the number of cilia increases during ontogeny, more so in C. foliatus than in C. ugamaensis and C. reticulatus. Adults of these species differ mainly by the pattern of cerotegument and cuticle, best seen in SEM micrographs. Apparent in light microscopy the pygidium of C. reticulatus is reticulate, that of C. foliatus has rounded foveae, while that of C. ugamaensis has small circles and semicircles. The cuticle of the latter species is covered with thin, granular cerotegument, while that of the other species has thick, netlike cerotegument; C. foliatus also has a cerotegumental collar. Adults of all species differ also by the shape of posterior notogastral setae, and the location of some genital setae.

Taxonomic revision of the “mexicanus” group of the genus Vaejovis C. L. Koch, 1836 (Scorpiones: Vaejovidae)

Zootaxa ◽  
2019 ◽  
Vol 4596 (1) ◽  
pp. 1 ◽  
Author(s):  
CONTRERAS-FÉLIX GERARDO A. ◽  
FRANCKE B. OSCAR F.
Keyword(s):  
New Species ◽  
Natural History ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
The Other ◽  
Species Groups ◽  
Males And Females ◽  
First Time

Within the scorpion genus Vaejovis C.L. Koch, the “mexicanus” group is composed of species distributed in the mountains of México. This group presents taxonomic problems, because its characterization and the species included in the group have varied through the years. In the present work, we redefine this group based on several morphological characters, and we differentiate it from the other two species groups within the genus: “vorhiesi” and “nit dulus+nigrescens”. Additionally, five new species are described: Vaejovis ceboruco sp. nov., Vaejovis nanchititla sp. nov., Vaejovis santibagnezi sp. nov., Vaejovis talpa sp. nov. and Vaejovis tapalpa sp. nov; the males of three species are described for the first time (V. dugesi, V. nigrofemoratus and V. tesselatus); and the updated diagnosis for all species is included. Keys for the identification of males and females of the 30 species included in this group are given. Lastly, notes on the natural history and distribution of some species are provided, with maps of known distribution for all the species.

scholarly journals Morphological study of fruits, seeds and embryo in the tropical tribe Dipterygeae (Leguminosae-Papilionoideae)

Rodriguésia ◽  
2014 ◽  
Vol 65 (1) ◽  
pp. 89-97 ◽  
Author(s):  
Rafael Barbosa Pinto ◽  
Vanessa Maria da Costa Rodrigues Francisco ◽  
Vidal de Freitas Mansano
Keyword(s):  
Morphological Study ◽  
Morphological Analysis ◽  
Morphological Characteristics ◽  
The Other ◽  
Embryo Morphology ◽  
Phylogenetic Studies ◽  
Dispersal Syndromes ◽  
Diagnostic Characteristics ◽  
First Time

This work analyses and describes fruit, seed and embryo morphology of 12 Dipterygeae species. The fruit is quite distinct among genera, being a legume in Taralea, a drupoid legume in Dipteryx and a cryptosamara in Pterodon. It was observed that the three genera present distinct morphological characteristics in the epicarp, mesocarp and endocarp. These structures are strongly associated with the dispersal syndromes presented by the genera. Embryonic descriptions are provided for the first time in this manuscript for the three genera presented here and the main diagnostic characteristics are: (1) a gradual extent of development of the hypocotyl-radicle axis from Taralea (undeveloped) to Dipteryx (the most developed); (2) the plumules are entire in Taralea and pinnate in Dipteryx and Pterodon; (3) a cleft below the hypocotyl-radicle axis in Taralea, absent in the other genera, because of the strongly cordate base of the cotyledonar leaves; (4) differences in the degree of development of the hypocotyl-radicle axis between D.alata, D.rosea and D.micrantha. Dipterygeae presents a noticeable diversity of fruit, seed and embryo, Taralea being the most distinct of all. The results of this morphological analysis suggest an evolutive path for the diaspores in the clade, based on phylogenetic studies which show Taralea as sister to the clade constituted by Dipteryx and Pterodon.

On the wasp-mimicking sharpshooter genus Propetes Walker, 1851 (Hemiptera: Cicadellidae: Cicadellinae): description of a new species, proposal of a new synonymy, and distributional notes

Zootaxa ◽  
2017 ◽  
Vol 4281 (1) ◽  
pp. 165
Author(s):  
JÁDILA SANTOS PRANDO ◽  
CLAYTON CORRÊA GONÇALVES ◽  
DANIELA MAEDA TAKIYA
Keyword(s):  
New Species ◽  
French Guiana ◽  
New Records ◽  
Morphological Characteristics ◽  
Female Genitalia ◽  
Display Behavior ◽  
Males And Females ◽  
New Synonymy ◽  
First Time ◽  
A New Species

The Neotropical genus Propetes Walker, 1851 currently includes three species recorded from Brazil and Guyana that share morphological characteristics related to wasp-mimicking behavior. A revision of available material of Amazonian Propetes was conducted, and a new species, P. sakakibara sp. nov., is described and illustrated herein based on males from Brazil, Peru, and Venezuela. Based on the association of males and females from Pará State (Brazil), a synonymy is proposed between P. triquetra (Fabricius, 1803) (previously known only from males) and P. compressa Walker, 1851 (previously known only from females). The female genitalia of P. triquetra is redescribed and illustrated in detail. Observation of bluffing display behavior is reported for the first time for the genus, in P. schmidti. A key to all species included in Propetes, based on males and females, and a map of distribution of Propetes species are provided, including new records of the genus from French Guiana, Peru, and Venezuela. 

scholarly journals Spinnerets and silk-producing system of Segestria senoculata (Araneae, Araneomorphae, Segestriidae)

2016 ◽  
Vol 48 (3) ◽  
pp. 388 ◽  
Author(s):  
S. Karschová ◽  
J. Hajer
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Light Microscopy ◽  
Current Knowledge ◽  
The Other ◽  
Sem Study ◽  
First Time ◽  
Scanning Electron

The spinning apparatus and silk of <em>Segestria senoculata</em> were studied with the use of scanning electron microscopy and light microscopy, which confirmed the presence of four categories of spigots connected with four types of spinning glands (<em>i.e</em>., <em>Glandulae ampullaceae major, Glandulae ampullaceae minor, Glandulae piriformes and Glandulae pseudaciniformes</em>). New data about the morphology of spinnerets and spigots were obtained for both the adults and nymphal stages of both sexes. For the first time the silken threads of retreats, signal threads and attachment discs of the members of <em>Segestria</em> were subjected to a detailed SEM study. The data resulting from studying the spinning apparatus of <em>S. senoculata</em> was compared to current knowledge of the silk producing systems of families belonging to the Dysderoidea superfamily. Silks that are emitted from spigots in the course of retreat construction are not (similarly to the other dysderoids) processed by the spider’s legs during the subsequent process of hardening. Apart from the major ampullate glands/spigots, segestriids also possess developed minor ampullate glands. Minor ampullate threads are used by <em>S. senoculata</em> spiders when making their signal threads.

New and newly recorded species of Psathyrella (Psathyrellaceae, Agaricales) from northeast China

Phytotaxa ◽  
2017 ◽  
Vol 321 (1) ◽  
pp. 139 ◽  
Author(s):  
JUN-QING YAN ◽  
TOLGOR BAU
Keyword(s):  
Molecular Analysis ◽  
Northeast China ◽  
Morphological Characteristics ◽  
Changbai Mountain ◽  
The Other ◽  
Its Sequences ◽  
Line Drawings ◽  
First Time

Four species of Psathyrella—P. subspadiceogrisea sp. nov., P. boreifasciculata, P. gordonii, P. senex were discovered in northeast China. P. subspadiceogrisea is described as new from Changbai Mountain; the other three species are recorded in China for the first time. The specimens were identified based on morphological characteristics and molecular analysis of ITS sequences. Detailed morphological descriptions, line drawings and photographs are presented.

scholarly journals Two new species of Engertia Dalla Torre, 1913 and Philacelota Heller, 1900 from Indonesia and the Philippines with a revised identification key (Coleoptera: Scarabaeidae: Melolonthinae)

2019 ◽  
Author(s):  
Artem M. Prokofiev
Keyword(s):  
New Species ◽  
The Philippines ◽  
Identification Key ◽  
The Other ◽  
Dichotomous Key ◽  
Two New Species ◽  
Males And Females ◽  
First Time

Two new species of the leucopholine genera Engertia Dalla Torre, 1913 and Philacelota Heller, 1900 are described. Engertia allolepis sp. nov. from Ambon Island in the Moluccas, Indonesia, can be distinguished from the other species of the genus by the heterogeneous setosity on the elytra as well as by a very robust and arcuate aedeagus. Philacelota leucothea sp. nov. from Luzon Island, Philippines, differs from the other species of Philacelota in the scaled whitish vestiture of the pronotum and elytra, as well as in the unidentate protibiae and in the shape of parameres. The length of the 3rd antennomere is the only reliable character for the separation of the genera Engertia and Philacelota. A revised dichotomous key for identification of males and females of all species of Engertia and Philacelota is given. The genus Philacelota is reported from the Philippines for the first time.

scholarly journals Updates on Berlandiella (Araneae: Philodromidae): a new species, description of the male of B. querencia and new diagnosis for the genus

2020 ◽  
Vol 37 ◽  
pp. 1-13
Author(s):  
Paulo Pantoja ◽  
Marcos Drago-Bisneto ◽  
Regiane Saturnino
Keyword(s):  
New Species ◽  
National Park ◽  
The Other ◽  
Neotropical Species ◽  
Males And Females ◽  
New Species Description ◽  
New Diagnosis ◽  
First Time ◽  
A New Species ◽  
Unknown Male

Berlandiella Mello-Leitão, 1929 is currently composed of six Neotropical species, of which Berlandiella querencia Lise &amp; Silva, 2011 is known only from female specimens; the other species of the genus were described based on both males and females. In this paper, we describe and illustrate Berlandiella zabelesp. nov., based on a few individuals collected in Sete Cidades National Park, Piracuruca and Brasileira, state of Piauí, Brazil. We illustrate and describe the previously unknown male of B. querencia, based on a specimen collected from Reserva Mocambo, Belém, state of Pará, Brazil. The taxa described herein have scopula in the tarsi and metatarsi, and the males have a cymbial process, characters recorded for the first time for the genus. Additionally, we present an updated diagnosis for Berlandiella.

Contributions to the larvae of North American Nixe (Ephemeroptera: Heptageniidae), with the description of N. dorothae sp. nov. from southern Indiana

Zootaxa ◽  
2011 ◽  
Vol 3065 (1) ◽  
pp. 27 ◽  
Author(s):  
J. M. WEBB ◽  
W. P. MCCAFFERTY
Keyword(s):  
North American ◽  
North American Species ◽  
The Other ◽  
Males And Females ◽  
First Time

Nixe dorothae n. sp. (Ephemeroptera: Heptageniidae) is described from southern Indiana, USA based on larvae, males, and females. Larvae are easily differentiated from those of the other known North American species by the presence of two rows of denticles on the tarsal claws. Males are differentiated from congeners by the presence of median spines on the apical sclerites of the penes and reddish-brown abdominal terga. The larva of N. rusticalis is described for the first time; it is differentiated from known North American Nixe by having more than 15 comb setae on the maxilla. A preliminary key for the larvae of the known North American Nixe is provided.

Descriptions of four new trapdoor spider species in the subfamily Ummidiinae from Thailand (Araneae, Mygalomorphae, Halonoproctidae)

Zootaxa ◽  
2021 ◽  
Vol 4984 (1) ◽  
pp. 300-323
Author(s):  
ARTHUR E. DECAE ◽  
PETER J. SCHWENDINGER ◽  
KOMSAN HONGPADHARAKIREE
Keyword(s):  
New Species ◽  
The Other ◽  
Chiang Mai ◽  
Spider Species ◽  
The North ◽  
Coastal Province ◽  
Chiang Mai Province ◽  
Males And Females ◽  
First Time ◽  
Northeastern Thailand

Males and females of four mygalomorph spider species (family Halonoproctidae, subfamily Ummidiinae) are newly described from Thailand, and the taxonomy of Ummidiinae is discussed. This is the first time that trapdoor spider species in this subfamily are described from Thailand. Two of these new species belong to the genus Conothele, the other two species are placed in the genus Latouchia. Conothele martensi spec. nov. was found in the north of the country (Chiang Mai Province), C. isan spec. nov. and Latouchia incerta spec. nov. were collected in northeastern Thailand (Buri Ram Province, Surin Province and Roi Et Province), and L. maculosa spec. nov. was found in the southern coastal province of Prachuap Khiri Khan.  

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