The Cochlostoma (Holcopoma) westerlundi group in Italy (Caenogastropoda: Cochlostomatidae)

Biologia ◽  
2014 ◽  
Vol 69 (6) ◽  
Author(s):  
Mariastella Colomba ◽  
Fabio Liberto ◽  
Armando Gregorini ◽  
Walter Renda ◽  
Agatino Reitano ◽  
...  
Keyword(s):  
16S Rdna ◽  
Southern Italy ◽  
Genetic Distances ◽  
Morphological Data ◽  
Molecular Evidence ◽  
Systematic Classification ◽  
Phylogenetic Status ◽  
First Time ◽  
Reproductive Apparatus

AbstractCurrently, the Cochlostoma (Holcopoma) westerlundi (Paulucci, 1879) group includes three subspecies inhabiting southern Italy up to southeastern Sicily. C. w. westerlundi (Paulucci, 1879) is limited to southern Calabria, C. w. yapigium (Westerlund, 1885) is widespread across the Salento (the southeastern extremity of the Apulia region) and C. w. dionysii (Paulucci, 1879) is endemic to the environs of Siracusa (SE Sicily). There is also a fourth taxon, C. paganum (Westerlund, 1885) described for Otranto (LE, Apulia), considered a synonym of C. w. yapigium. Up to now, the molecular genetics of C. westerlundi s.l. have been unknown and the morphological data of several populations are still lacking. Hence, the systematic classification of the group is tentative. Aiming at filling this gap, mtDNA (16S rDNA and COI) partial sequences were investigated and, in addition, the reproductive apparatus of C. w. westerlundi was described for the first time. Molecular sequences and anatomical data were used to test the taxonomic and phylogenetic status of the examined populations. Maximum Likelihood and Bayesian analysis revealed three clusters, strongly supported, corresponding to the three taxa. For the first time, synonymy between paganum and yapigium was confirmed by molecular evidence. Genetic distances between groups (DxyJC) ranged from 2.6% to 5% (16S rDNA) and from 6.3% to 8.3% (COI). Molecular and morphological data led us to suggest elevating the three subspecies to the species rank.

scholarly journals The Immature Stages, Biology, and Phylogenetic Relationships of Rotunda rotundapex (Lepidoptera: Bombycidae)

2019 ◽  
Vol 19 (2) ◽  
Author(s):  
Rung-Juen Lin ◽  
Michael F Braby ◽  
Yu-Feng Hsu
Keyword(s):  
Phylogenetic Relationships ◽  
Host Plants ◽  
Morphological Data ◽  
Phylogenetic Position ◽  
Immature Stages ◽  
Systematic Classification ◽  
Separate Genus ◽  
Young Leaves ◽  
Segment 8 ◽  
First Time

Abstract The life history, morphology, and biology of the immature stages and phylogenetic relationships of Rotunda rotundapex (Miyata & Kishida, 1990) are described and illustrated for the first time. The species is univoltine: eggs hatch in spring (March or April) and the life cycle from egg to adult is completed in about 3 wk, with larvae developing rapidly on young leaves of the host plants, Morus australis and to a lesser extent Broussonetia monoica (Moraceae), and adults emerging in April–May. Eggs are laid in clusters on twigs of the host plant, are covered by scales during female oviposition, and remain in diapause for the remainder of the year (i.e., for 10–11 mo). Larvae (all instars) are unique among the Bombycidae in that they lack a horn on abdominal segment 8. A strongly supported molecular phylogeny based on six genes (5.0 Kbp: COI, EF-1α, RpS5, CAD, GAPDH, and wgl) representing seven genera of Bombycinae from the Old World revealed that Rotunda is a distinct monotypic lineage sister to Bombyx. This phylogenetic position, together with morphological data of the immature stages (egg and larval chaetotaxy), supports the current systematic classification in which the species rotundapex has been placed in a separate genus (Rotunda) from Bombyx in which it was previously classified.

On the morphology and classification of larval water mites (Hydrachnidia, Acari) from springs in Luxembourg

Zootaxa ◽  
2006 ◽  
Vol 1138 (1) ◽  
pp. 1 ◽  
Author(s):  
PETER MARTIN
Keyword(s):  
Morphological Data ◽  
Water Mites ◽  
Water Mite ◽  
Question Mark ◽  
First Time

Morphological data on the larvae of 37 species of freshwater mites (Hydrachnidia) known from springs in Luxembourg are reported. Larvae of Sperchon insignis (Walter, 1906), S. longissimus K.Viets, 1920, Lebertia holsatica K. Viets, 1920, Atractides fonticolus (K.Viets, 1920) and, with a question mark, A. pennatus (K.Viets, 1920) are described for the first time; re-descriptions are presented for Sperchon squamosus Kramer, 1879 and S. setiger Thor, 1898. Previous larval descriptions are listed and commented on for all species. Two species are recorded as new for the Luxembourgian fauna: Panisellus thienemanni (K.Viets, 1920) and Pseudofeltria scourfieldi Soar, 1904. A further taxon previously not recorded from springs in Luxembourg is described, probably Tiphys Koch, 1836 sp. An illustrated key is presented suitable for the determination of most parasitic water mite larvae attached to insect hosts from Luxembourgian springs.

An X-ray examination of some potash-soda-felspars

1939 ◽  
Vol 25 (165) ◽  
pp. 338-350 ◽  
Author(s):  
S. H. Chao ◽  
D. L. Smare ◽  
W. H. Taylor
Keyword(s):  
Systematic Classification ◽  
X Ray ◽  
Natural Minerals ◽  
Thermal Investigations ◽  
Potash Felspar ◽  
Complete Survey ◽  
The Subject ◽  
First Time ◽  
Ray Methods

The systematic classification of the potash-soda-felspars is of the greatest interest and importance to the mineralogist, but problems demanding physical investigation are raised in work carried out recently by Dr. Edmondson Spencer, who has described the results of exhaustive chemical, optical, and thermal investigations of a representative collection of these minerals. Dr. Spencer has very kindly allowed us to examine by X-ray methods a large number of his specimens, so that for the first time it has been possible to make a fairly complete survey of potash-soda-felspars of known chemical composition and with accurately measured optical properties.This paper presents the results of our general survey of potash-soda-felspars with compositions ranging from nearly pure potash-felspar to approximately 50 % soda-felspar. The natural minerals, and the same minerals after specified heat-treatment, have been examined. We do not discuss in detail the interpretation of our results in terms of the atomic structure of felspars; the subject is extremely complicated, and it is necessary to await the results of other investigations now in progress in this laboratory before attempting a complete structural interpretation.

A STUDY OF THE SYSTEMATICS OF THE WATER MITE FAMILY PIONIDAE (PROSTIGMATA: PARASITENGONA)

1976 ◽  
Vol 108 (S98) ◽  
pp. 1-249 ◽  
Author(s):  
Ian M. Smith
Keyword(s):  
Morphological Data ◽  
Water Mite ◽  
Male Adult ◽  
The Family ◽  
Species Groups ◽  
Three New Species ◽  
First Time ◽  
Insight Into ◽  
Mite Family

AbstractA phylogeny is proposed for the 30 species groups in the 13 genera here included in the family Pionidae. The phylogeny is based upon a detailed analysis of available morphological data for larval and adult stages according to the methodology advocated by Hennig. This methodology is outlined and discussed. The proposed phylogeny provides the basis for a revised classification of the pionids and permits new insight into certain biological manifestations of phylogeny, namely habitat diversification, life history modification, and geographic distribution, in the group.Original descriptions are provided for the larvae of 41 pionid species (20 for the first time) representing 24 species groups in eight genera. Three new species, Wettina ontario n. sp., Forelia pinguipalpis n. sp., and Tiphys cooki n. sp., are described along with the previously undescribed male adult of Pseudofeltria multipora Cook and female adults of Forelia cayuga Habeeb and Forelia onondaga Habeeb. Keys and new diagnoses are presented for pionid genera and species groups. Keys to the larvae and adults, and new distributional data, are included for the pionid species known to occur in Ontario.

The occurrence of dopaminergic interplexiform cells correlates with the presence of cones in the retinae of fish

1995 ◽  
Vol 12 (2) ◽  
pp. 359-369 ◽  
Author(s):  
Eleonore Fröhlich ◽  
Koroku Negishi ◽  
Hans-Joachim Wagner
Keyword(s):  
Biological Rhythms ◽  
Plexiform Layer ◽  
Amacrine Cells ◽  
Inner Plexiform Layer ◽  
Systematic Classification ◽  
Dopaminergic Cells ◽  
Eye Growth ◽  
Cartilaginous Fishes ◽  
First Time

AbstractUsing light-microscopic immunocytochemistry against tyrosine hydroxylase, we have investigated the morphology of dopaminergic cells in 23 species of fishes representing various systematic classes and subclasses and which live in very different habitats. We have, for the first time, observed teleosts with dopaminergic amacrine cells. Thus, in both bony and cartilaginous fishes, dopaminergic cells are differentiated as interplexiform and amacrine cells. The differentiation of dopaminergic cells into amacrine or interplexiform cells in fishes correlates with the absence or presence of cones. In pure-rod retinae, they occur as amacrine cells, and in mixed rod/cone retinae, they occur as interplexiform cells. We conclude therefore that the differentiation of retinal dopaminergic cells in fish does not depend on the evolutionary or systematic classification of a given species. Rather, it is correlated with the occurrence of rods and/or cones, and thus linked more closely to the habitat. We argue that, in fish, the presence of cones and cone-specific horizontal cells may be responsible for inducing dopaminergic cells to differentiate as interplexiform cells. Possible functions of dopamine in all-rod retinae, which may not require adaptation, may include neuromodulation in the inner plexiform layer for the sensitization of the rod pathway, the shaping of biological rhythms, and the control of eye growth.

scholarly journals Molecular classification and comparative phylogeographic study of insectivorous bat species (Pipisitrellus coromandra) from Punjab, Pakistan

2022 ◽  
Vol 82 ◽  
Author(s):  
Z. Ahmad ◽  
M. H. Abbasi ◽  
S. R. Ahmad ◽  
N. Sheikh
Keyword(s):  
Molecular Classification ◽  
Genetic Distances ◽  
Coi Gene ◽  
Local Alignment ◽  
Identity Match ◽  
Gene Coi ◽  
Search Tool ◽  
Identity Score ◽  
First Time

Abstract Molecular based identification of bat fauna in Pakistan has been relatively less explored. The current study was therefore planned to report for the first time the molecular classification of insectivorous bats (Pipistrellus coromandra) based on mitochondrion gene (COI) from Punjab, Pakistan. Specimens were collected from five different locations followed by DNA extraction with subsequent gene amplification and sequencing. All samples in the study had shown close identity matches with species (Pipistrellus coromandra) from India and (Pipistrellus tenuis) from Vietnam with percentage identity score of 96.11 and 95.58 respectively except one sequence which only revealed 86.78% identity match on Basic Local Alignment Search Tool (BLAST) and could only be assigned to genus level Pipistrellus sp. The results indicated negligible intra-population genetic distance among collected samples whereas the comparison with species from other countries had shown high intraspecific (P. coromandra) and interspecific (P. tenuis) mean genetic distances. The current study hence successfully proved the efficiency of COI gene as a molecular marker for species identification and in analyzing the patterns of genetic variation with species from other countries.

A Revision of Triodia including Plectrachne (Poaceae, Eragrostideae, Triodiinae)

1997 ◽  
Vol 10 (3) ◽  
pp. 381 ◽  
Author(s):  
M. Lazarides
Keyword(s):  
New Species ◽  
New South ◽  
New South Wales ◽  
South Australia ◽  
Morphological Data ◽  
New Combinations ◽  
South Wales ◽  
Specific Rank ◽  
First Time

On the basis of morphological data presented herein, Plectrachne Henr. is included in Triodia R.Br. This congeneric change requires 15 new combinations and three new nominations. In Triodia R.Br. sens. lat., 11 new species are proposed, one subspecies is raised to specific rank, while three species and six varieties are reduced to synonyms. For the first time, Triodia melvillei and T. schinzii are recorded for South Australia, T. bunicola for Victoria, T. mollis for Queensland and T. marginata for New South Wales. Although probably monophyletic, Triodia as here interpreted is widely variable. Thus, a classification of nine informal infrageneric groups is proposed.

scholarly journals Μορφολογία και συστηματική των Eriophyoidea (Acari: Prostigmata) της ελληνικής χλωρίδας

2012 ◽  
Author(s):  
Ελένη Μαλανδράκη
Keyword(s):  
Ventral Side ◽  
Cultivated Plants ◽  
Host Feeding ◽  
Systematic Classification ◽  
Worldwide Distribution ◽  
The Family ◽  
Original Illustrations ◽  
Herbivorous Species ◽  
First Time

Superfamily Eriophyidea consinsts of the families Phytoptidae, Eriophyidae and Diptilomiopidae. To date they are the smallest known mites. They are distinguished by their vermiform shape and two pairs of legs at all stages, a feature unique amongst all known families of mites.The Eriophyoidea are exclusively herbivorous species found in both cultivated and non cultivated plants. The majority of them are specific to their host, feeding on particular plant species or on a small number of closely related species, often causing impressive symptoms. Many of them are important pests of cultivated plants. For this reason, despite their small size and the difficulties it entails, Eriophyoidea was the subject of a large number of studies both in past and in recent years.The aim of this study is to contribute to the study of the Greek flora mite fauna in general and to the study of Eriophyoidea in particular.Plant samples were taken from most geographic regions of Greece. The collection of mites was achieved directly, using a stereoscope. Permanent microscope mounts were prepared and the mite speciments were observed and illustrated using a research microscope supplied by a drawing tube.In the first part of the present study it is examined in detail the morphology of Greek Eriophyoidea species found. Gnathosoma with pedipalps, chelicerata, prodorsum, legs, coxisternal and genital region, dorsal and ventral side of opisthosoma and all individual characters which are essential for the systematic classification of Eriophoidea, were studied. The study of the morphology concerns, mainly the adults, female protogyne and male, while information is given about the morphology of immature stages and deutogyne female.In the second part is studied the systematics of the Greek species of Eriophoidea. The mites that were found are classified into families, subfamilies, tribes, genera and species and related keys are given.In the descriptions of Greek species a detailed description of protogyne female and a brief description of the male (where this was found), original illustrations, their worldwide distribution and their distribution in Greece, the hosts and symptoms (if there) are provided.The systematic study of Eriophoidea found in Greek flora, showed the presence of 103 species in 33 genera belonging to all 3 families. Specifically, from the family Phytoptidae 5 species were found belonging to the genera Novophytoptus, Trisetacus, Phytoptus and Mackiella. From the family Eriophyidae 80 species were found belonging to the genera Bariella, Cecidophyopsis, Cecidophyes, Achaetocoptes, Colomerus, Stenacis, Eriophyes, Aceria, Acaricalus, Caliphytoptus, Calepitrimerus, Epitrimerus, Platyphytoptus, Cupacarus, Phyllocoptes, Anthocoptes, Aculus, Aculodes, Aculops, Neooxycenus, Tetraspinus, Tetra θαη Ditrymacus. From the family Diptilomiopidae 18 species were found belonging to the genera Asetadiptacus, Diptacus, Asetacus, Rhinotergum, Rhinophytoptus and Rhyncaphytoptus. From these, 33 species are new to science and another 42 are reported for the first time in Greece. For several other species, Greece in the second country from which are reported.

Ieskats baltu dialektu pētniecībā Latvijā un Lietuvā: paralēlais un atšķirīgais

2020 ◽  
pp. 150-159
Author(s):  
Anna Stafecka
Keyword(s):  
19Th Century ◽  
Mutual Influence ◽  
Systematic Classification ◽  
Joint Project ◽  
History Of ◽  
The Baltic ◽  
The Right ◽  
The 19Th Century ◽  
First Time

Both Baltic languages, which are still alive, have preserved their historical territorial dialects. The article gives a brief insight into the research of Latvian and Lithuanian dialects, which are the continuation of ancient languages of Baltic tribes, perhaps with many changes and mutual influence. Only the Livonian dialect of Northern Kurzeme has to be mentioned as an exception because of the Livonian language and the Couronian tribe language as the basis of it. Subdialects, as the smallest territorial units of language in Latvia and Lithuania (points) had formed themselves during feudalism, when peasants did not have the right to change their place of residence. The first recordings of the peculiarities of Latvian and Lithuanian dialects have been known since the 17th-century dictionaries and grammars. The systematic classification of both Latvian and Lithuanian dialects began in the second half of the 19th century. In Latvia, the first who described all three Latvian dialects in his Lettische Grammatik was Gotthard Friedrich Stender. In Lithuania, both Lithuanian dialects were distinguished by August Schleicher. The first research in Latvian and Lithuanian dialectology and geolinguistics dates back to the second half of the 19th century. The first map of Lithuanian dialects was published by Friedrich Kurschat in 1876. The first geolinguistic maps of the Latvian language were developed by August Bielenstein. They were published in 1881 and 1892. The early programmes of collecting the cultural and linguistic heritage of the Lithuanian and Latvian folklore and language were published at the end of the 19th century. They are very different. The boundaries of the territorial dialects of Latvian, unlike the Lithuanian, are not determined by one or two dialectal features, but by a set of isoglosses, reflecting phonetic and morphological features. In Lithuanian dialectology, the system of settlements (points) was chosen – language material was collected within approx. 10–12 km radius around them. In the 1950s, geolinguistic research in Lithuania and Latvia are connected with the creation of national dialectal atlases. In 1977, for the first time in the history of Baltic geolinguistics, the material of Lithuanian and Latvian dialects was collected according to a united program for the Atlas linguarum Europae. In it, Latvian was represented with 36 subdialects and Lithuanian with 42 subdialects. At the beginning of the 21st century, Latvian and Lithuanian linguists have launched a joint project, the Atlas of the Baltic Languages. We can draw the conclusion that the research of dialects in Latvia and Lithuania for more than a century have been parallel but different, dialectal material was collected according to different programmes.

First Records of Bufo luchunnicus (Yang et Rao, 2008) and Amolops wenshanensis Yuan, Jin, Li, Stuart et Wu, 2018 (Anura: Bufonidae, Ranidae) from Vietnam

2020 ◽  
Vol 27 (2) ◽  
pp. 81-86
Author(s):  
Cuong The Pham ◽  
Minh Duc Le ◽  
Chung Van Hoang ◽  
Anh Van Pham ◽  
Thomas Ziegler ◽  
...  
Keyword(s):  
Natural History ◽  
Genetic Divergence ◽  
Morphological Data ◽  
Type Series ◽  
Lao Cai ◽  
First Time ◽  
Nd2 Gene ◽  
Quang Ninh

We record two species of amphibians for the first time from Vietnam: Bufo luchunnicus from Lao Cai and Son La provinces and Amolops wenshanensis from Quang Ninh Province. Morphologically, the Vietnamese representatives of B. luchunnicus resemble the type series from China. The specimen of A. wenshanensis from Vietnam slightly differs from the type series from China by having a smaller size (SVL 33.2 mm vs. 35.7 – 39.9 mm in males) and the presence of distinct transverse bands on the dorsal surfaces of limbs. Genetic divergence between the sequence of the Vietnamese specimen and those of A. wenshanensis from China available from GenBank is 1.2 – 1.6% (ND2 gene). In addition, morphological data and natural history notes of aforementioned species are provided from Vietnam.

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