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Articles 56101 - 56130 of 59365
Full-Text Articles in Entire DC Network
The Fine Structure Of Hamann's Organ In Leptodirus Hohenwarti, A Highly Specialized Cave Bathysciinae (Coleoptera, Catopidae), Fiorenza Accordi, Valerio Sbordoni
The Fine Structure Of Hamann's Organ In Leptodirus Hohenwarti, A Highly Specialized Cave Bathysciinae (Coleoptera, Catopidae), Fiorenza Accordi, Valerio Sbordoni
International Journal of Speleology
Hamann’s organ in Leptodirus hohenwarti a highly specialized cave Bathysciinae, has been studied under the TEM, SEM and light microscope. This receptor organ located in the 7th, 9th and 10th antennal articles and previously referred to as the “vesicule olfactive” and as the “antennal organ” or “antennal vesicle”, reaches its highest degree of structural complexity in leptodirus. This paper attempts to establish some degree of synonymy among the terms used by earlier authors in describing the various antennal parts and sensilla. Five types of sensilla to be found in the organ are described, namely cribrose-stick sensilla, cribrose-utricular sensilla, star-shaped sensilla, …
L'Equipement Sensoriel Des Trechinae Souterrains (Coléoptères). Ii - Ultrastructure Des Trichobothries De I'Elytre, Christian Juberthie, Françoise Piquemal
L'Equipement Sensoriel Des Trechinae Souterrains (Coléoptères). Ii - Ultrastructure Des Trichobothries De I'Elytre, Christian Juberthie, Françoise Piquemal
International Journal of Speleology
The ultrastructure of trichobothria (Tm2, Tr2, Tr4) of the elytra has been studied in the troglobitic Coleoptera Geotrechus vulcanus and Aphaenops cerberus. Two bipolar neurons innervate these trichobothria. The first ends at the level of the hair base, and its distal segment contains a tubular body, characteristic of mechanoreceptive bristles. The other does not possess a tubular body, and its distal segment ends in the bristle canal; its function is unknown. The trichobothria possess one glial enveloping cell, one trichogen cell, and one tormogen cell; the latter two show an apical, common, large, receptor lymph cavity. The small trichobothria …
Dytiscidae Cavernicoles De Papouasie (Résultats Zoologiques De La Mission Spéléologique Britannique En Papouasie - Nouvelle Guinée, 1975, 1), Vassil B. Guéorguiev
Dytiscidae Cavernicoles De Papouasie (Résultats Zoologiques De La Mission Spéléologique Britannique En Papouasie - Nouvelle Guinée, 1975, 1), Vassil B. Guéorguiev
International Journal of Speleology
This paper reports the results of the investigations on Dytiscidae from New Guinea caves. Three new species are described: Copelatus subterraneus sp.n., Platynectes (Metaplatynectes) beroni sp.n. and P. (M.) chapmani sp. n. Synonymic notes on the subgenera of the genus Platynectes and descriptions of two new subgenera Notoplatynectes subgen. n. and Metaplatynectes subgen. n. are also reported.
Un Asellide Interstitiel Du Bassin De I'Ebre (Espagne): Proasellus Lescherae N.Sp. (Crustacea, Isopoda, Asellota), Jean-Paul Henry, Guy Magniez
Un Asellide Interstitiel Du Bassin De I'Ebre (Espagne): Proasellus Lescherae N.Sp. (Crustacea, Isopoda, Asellota), Jean-Paul Henry, Guy Magniez
International Journal of Speleology
Proasellus lescherae n.sp. is a little, interstitial species, living in the underflow of Rio Guadalope Basin (a tributary of Ebro River). It is related to the water-slaters of the underground waters of the Pyreneo-cantabrigian region (the phyletic line of ProaselIus spelaeus Racovitza). The mean size of the reproductive females is very small (2.9 mm) and the brood contains only 6-10 eggs. Nevertheless, the size of the eggs and intramarsupial larval stages are the same as in epigean or hypogean species of the genus, which reach a larger adult size.
Bogidiella Martini, Un Nouvel Amphipode Souterrain De I'Ile Saint-Martin (Antilles) Et La Zoogéographie Des Bogidiellidae, Jan H. Stock
Bogidiella Martini, Un Nouvel Amphipode Souterrain De I'Ile Saint-Martin (Antilles) Et La Zoogéographie Des Bogidiellidae, Jan H. Stock
International Journal of Speleology
Both sexes of a new species of Bogidiella, B. martini, are described. The new species, with a very pronounced sexual dimorphism, has been discovered in two wells in the island of St.-Martin (French part), one of the Lesser Antilles. Another member of Bogidiella has been recorded from the island of Curaçao, but the specimens were damaged too much to allow proper description. The Bogidiellidae (5 genera, 26 named species, and several unnamed species) are present in the sea as well as in inland waters. The family has a wide distribution, exceeding the boundaries of the former Tethys Sea. Probably, …
Observations Sur I'Écologie Et La Distribution Des Turbellariés Tricladides Dépigmentés Et Anophtalmes De Roumanie, L. Botosaneanu
Observations Sur I'Écologie Et La Distribution Des Turbellariés Tricladides Dépigmentés Et Anophtalmes De Roumanie, L. Botosaneanu
International Journal of Speleology
Twenty-two localities, where unpigmented and mostly blind tricladid turbellarians (Dendrocoelidae and Fonticola) were discovered by the author, are described in more or less detail. These animals are particularly well represented in Romania; the explanation is that they are expansive offshoots of a fauna formerly inhabiting the huge brackish or freshwater lakes which covered most of this country during the Neogene (and especially the Sarmatian). Different species are inhabitants of different particular habitats of the underground water realm, and the author distinguishes between species inhabiting cave waters, typical phreatobionts, hyporheic species and species living in springs or springbrooks. These species are …
Les Araignées Du Genre Rhode De Yougoslavie (Araneae, Dysderidae), C. L. Deeleman-Reinhold
Les Araignées Du Genre Rhode De Yougoslavie (Araneae, Dysderidae), C. L. Deeleman-Reinhold
International Journal of Speleology
Rhode magnifica n. sp. is described from a Montenegrine cave and Rhode stalitoides n. sp. from a Bosnian cave. There is a redescription of Rhode aspintfera (Nikolié). The author includes in the genus Rhode the species previously contained in the genera Harpassa and Typhlorhode. The northern Yugoslav genus Stalita and related genera are regarded to be the nearest relatives of Rhode and it is concluded that they have originated on the Balkan Peninsula from a common ancestor.
A Perçu Sur La Composition, I'Origine Et La Formation De La Faune Cavernicole De La Stara Planina Occidentale (Bulgarie), Petar Beron
International Journal of Speleology
The karstic area between the rivers Timok and Vit has about 500 caves and pot-holes, more than 300 of them being the subject of the present study. In this area (called here Western Stara Planina) we have noted 63 species and subspecies of terrestrial troglobites and 17 species and subspecies of aquatic troglobites. The two Regions into which we split the area (region of Ogosta and Region of Iskar) are the richest in cave fauna of Bulgaria. This study deals with the particularities in the composition and the distribution of the different groups of terrestrial troglobites, and especially of such …
The Tegumental Glands Of A Troglobitic Crustacean, L. Juberthie-Jupeau, Y. Crouau
The Tegumental Glands Of A Troglobitic Crustacean, L. Juberthie-Jupeau, Y. Crouau
International Journal of Speleology
Tegumental glands, located in the antennae of Antromysis juberthiei are present in males and females; in the antennulae each of them consists of 3 cells: a secretory cell of large size, an intermediary cell and a canal cell probably secretory in nature. The canal cell possesses an extracellular cavity with deep infoldings and microvilli between which the canal crinkles along. The intermediary cell is heavily provided with microfilaments. The secretory granules have an organized content.
Une Espèce Inédite De Rhachomyees (Ascomycètes, Laboulbeniales) Parasite Du Carabique Troglobie, Speagonum Mirabile Moore De La Nouvelle-Guinée (Resultats Zoologiques De L'Expedition Spéléologique Britannique En Papouasie-Nouvelle Guinée, 1975, 3), Walter Rossi
International Journal of Speleology
Rhachomyces beronii n. sp., parasitic on Speagonum mirabile Moore (Coleoptera, Carabidae, Anchomenini) from New Guinea, is described. The new species resembles Rhachomyces tenuis Thaxt, in general habit, but it differs from the latter in having a smaller receptacle, a larger and less pigmented perithecium, a different structure of the appendages and in the multiplication of appendiculate cells.
Diplopoda From Papuan Caves (Zoological Results Of The British Speleological Expedition To Papua-New Guinea, 1975, 4), Richard L. Hoffman
Diplopoda From Papuan Caves (Zoological Results Of The British Speleological Expedition To Papua-New Guinea, 1975, 4), Richard L. Hoffman
International Journal of Speleology
Eight species of polydesmoid millipeds are described from the caves of the extreme northwestern corner of Papua New Guinea. Four new genera are named: in Paradoxosomatidae, Selminosoma, type S. chapmani; Astromontosoma, type A. jeekeli; in Doratodesmidae, Scolopopyge, type S. pholeter; Selminarchus, type S. hispidus. Two additional new species are referred to established genera Eustrongylosoma exiguum and Nothrosoma beroni, the latter, however, (known only from females) is probably referable to a new genus. Selminosoma chapmani appears both from its structure and biology to be a true troglobite, the first such species known in the Paradoxosomatidae. The two doratodesmid species extend the …
Ecological Investigations Of The Influence Of A Polluted River On Surrounding Interstitial Underground Waters, Milan Meštrov, Romana Lattinger-Penko
Ecological Investigations Of The Influence Of A Polluted River On Surrounding Interstitial Underground Waters, Milan Meštrov, Romana Lattinger-Penko
International Journal of Speleology
Because of the fundamental biological investigations and also of the practical importance, the authors investigated interstitial subterranean water (hyporheic) near a polluted river Sava in the plain where the underground waters are considered as potable. With the comparison of the physical, chemical, bacteriological, saprobiological and faunistic characteristics of the river and its hyporheic zone in different seasons their mutual relation is detected. The results show the influence of polluted river water on the hyporheic water within the river bed to at least 2 m depth.
Martel's La France Ignorée: New Information From Two Post Cards To His Publisher, Trevor R. Shaw
Martel's La France Ignorée: New Information From Two Post Cards To His Publisher, Trevor R. Shaw
International Journal of Speleology
Two recently discovered post cards written by Martel to his publisher provide new information on the date he completed the manuscript of the first volume of La France ignorée and on the progress of its printing.
Magniezia Gardei N.Sp. (Crustacca Isopoda Asellote): Un Sténasellide Des Eaux Souterraines Du Maroc Sud-Oriental, Guy Magniez
Magniezia Gardei N.Sp. (Crustacca Isopoda Asellote): Un Sténasellide Des Eaux Souterraines Du Maroc Sud-Oriental, Guy Magniez
International Journal of Speleology
This new species has been discovered in the waters of Kef Aziza Cave, on the Saharian slopes of the High Atlas Range, Southeastern Morocco. Magniezia gardei n.sp. belongs to the same Genus as four species previously described from the phreatic waters of the Guinean area. So, it is assumed that this Moroccan species should be a relict of the ancient aquatic hypogean fauna of the entire West Africa, nowadays protected by the development of an arid climate.
Ostracodes Hypogés Du Sud De La France. 1. Mixtocandona Juberthieae N.Sp., Dan L. Danielopol
Ostracodes Hypogés Du Sud De La France. 1. Mixtocandona Juberthieae N.Sp., Dan L. Danielopol
International Journal of Speleology
The description of Mixtacandona juberthieae n.sp. is presented. The new species belongs to the group taurica and has been found in the karstic system of the Vidourle river at Sauve (Gard).
A Remarkable New Genus And Three New Species Of Cavernicolous Carabidae (Coleoptera) (Zoological Results Of The British Speleological Expedition To Papua-New Guinea 1975, 2), B. P. Moore
International Journal of Speleology
Speagonum mirabile gen. et sp. n. and Gastragonum caecum sp. n. are described as troglobites from caves in the Behrman Mountains of west New Guinea; Pseudozaena (Trichozaena subgen. n.) cavicola sp. n. is a troglophile from New Ireland.
A Classification Of Karstic Phenomena, Arrigo A. Cigna
A Classification Of Karstic Phenomena, Arrigo A. Cigna
International Journal of Speleology
The paper describes and classifies the several types of karstic processes, distinguishing karstic, parakarstic, hypokarstic, hyperkarstic and pseudokarstic phenomena. An appendix on solubility of silica is also given.
A Critical Review Of Hypotheses On The Origin Of Vermiculations, A. Bini, M. Cavalli Gori, S. Gori
A Critical Review Of Hypotheses On The Origin Of Vermiculations, A. Bini, M. Cavalli Gori, S. Gori
International Journal of Speleology
Mud and clay vermiculations are irregular and discontinuous deposits of incoherent materials, almost ubiquitous. Found both inside and outside of caves, overlying limestone or other materials, they are formed from many substances (clay, mud, candle-black, colloidal silica, etc.). Also their shape dimensions vary greatly. The following genetical hypotheses have been proposed: fossil fillings; chemico-genetical deposition; biological formation; mechanical deposition from moving water or air; clay-layer drying process (Montoriol-Pous hypothesis); physicochemical deposition from drying liquid films. The last is proposed by the authors who, having discussed the various hypotheses, give many examples and the results of some experiments. They distinguish two …
Réponses Locomotrices Du Poisson Cavernicole Astyanax Jordani (Pisces, Characidae) À Des Signaux Périodiques Et Apériodiques De Lumière Et De Température, G. Thines, M. Weyers
Réponses Locomotrices Du Poisson Cavernicole Astyanax Jordani (Pisces, Characidae) À Des Signaux Périodiques Et Apériodiques De Lumière Et De Température, G. Thines, M. Weyers
International Journal of Speleology
The locomotory activity of adult cave fishes Astyanax jordani was recorded in isolation in the following light and temperature conditions: constant conditions (100 Lx - 20°C), in a light cycle (LD:11/11 -10 Lx -100 Lx) and in a temperature cycle (11/11; 17/20, 19/22, 20/23, 27/30 °C). All longitudinal time series extended for a minimum of 30 days. Results show: (1) That no circadian regulation appears in constant conditions; (2) that passive entrainment occurs in LD (Amplitude: 90 Lx) and in periodic temperature conditions (Amplitude: 3°C). The entrainment effect damps out and varies individually; (3) that the mean activity increases with …
Microflore Et Activité De Groupements Fonctionnels Dans Les Sédiments De Trois Grottes De I'Italie Centrale, A. Pasqualini, B. Fumanti, L. Visonà
Microflore Et Activité De Groupements Fonctionnels Dans Les Sédiments De Trois Grottes De I'Italie Centrale, A. Pasqualini, B. Fumanti, L. Visonà
International Journal of Speleology
A comparative study is presented of the microflora of sediments in three caves with different trophic characteristics. Quantitative and qualitative variations of microflora were investigated for one year by studying the total microflora and the activity of the nitrogen cycle functional groups. Data were compared with those of other works of previous authors. Results show that the quantity and kind of organic matter of sediment are most important factors regulating the abundance and activity of cavernicolous microflora. The experimental part of this paper is prefaced by a digest of investigations previously carried out on cavernicolous microflora and by a report …
Ostracodes Du Sud De La France 2. Pseudocandona Simililampadis N.Sp., Dan L. Danielopol
Ostracodes Du Sud De La France 2. Pseudocandona Simililampadis N.Sp., Dan L. Danielopol
International Journal of Speleology
The description of Pseudocandona simililampadis n. sp. is presented. The new species belongs to the group schellenbergi and has been found in the karstic system of the Vidourle river at Sauve (Gard).
A Note On The Speleo-Minerals In South Korea, N. Kashima, M. S. Suh, S. K. Pae
A Note On The Speleo-Minerals In South Korea, N. Kashima, M. S. Suh, S. K. Pae
International Journal of Speleology
Description of a total of nine minerals found in ten caves of the middle Eastern part of the Korean peninsula.
The Occurrence Of Metacyclops Subdolus Kiefer (Crustacea: Copepoda) In Subterranean Waters Of Greece With Remarks On Its Systematic Status, Giuseppe Lucio Pesce
The Occurrence Of Metacyclops Subdolus Kiefer (Crustacea: Copepoda) In Subterranean Waters Of Greece With Remarks On Its Systematic Status, Giuseppe Lucio Pesce
International Journal of Speleology
The paper gives new localities for the Copepod Metacyclops subdolus from Greece and Crete together with the main morphological and ecological features of the species.
Neue Ergebnisse Speläologischer Untersuchungen In Den Hainburger Bergen (Nö) Und Ihre Wissenschaftliche Bedeutung, Karl Mais
International Journal of Speleology
Since 1971 speleological and paleontological investigations have been carried out in the quarry “Hollitzer” which is in the Pfaffenberg near Bad Deutsch Altenburg (Hainburger Berge, Lower Austria). Evident karst phenomena are missing at the surface, but the existence of caves filled with sediments in the quarry show that the area is a fossil buried karst. A steady scientific survey allowed the study of the karstic phenomena without hindering the work in the quarry. Up to now more than 150 cavities have been discovered. Most of them seem to belong to a unique solutional system; corrasive forms are missing. Fossils (Gasteropoda, …
The Discovery Of Proteus-Eggs (Proteus Anguinus Laurenti, Amphibia) In Seminatural Conditions, B. Sket, F. Velkovrh
The Discovery Of Proteus-Eggs (Proteus Anguinus Laurenti, Amphibia) In Seminatural Conditions, B. Sket, F. Velkovrh
International Journal of Speleology
Proteus-eggs were found for the first time in the nature, drifted out of a karstic spring. They were obtained from the Vir Spring al Sticna, 30 km ESE of Ljubljana. The hydrological and faunistical data indicate that Proteus lays its eggs also in “unsheltered”, energetically rich groundwater habitats.
Un Batrachuperus Adulte Dans Une Grotte D'Iran Espèce Nouvelle?, M. Clergue-Gazeau, J. P. Farcy
Un Batrachuperus Adulte Dans Une Grotte D'Iran Espèce Nouvelle?, M. Clergue-Gazeau, J. P. Farcy
International Journal of Speleology
During a speleological exploration of a cave in Iran, a species of Urodele Hynobiidae was found. This Batrachian is either a new species of the genus Batrachuperus or an adult form of the species Batrachuperus persieus previously only described in its larval and juvenile forms. Certain observable differences suggest that it can be considered a new species. Observations on its feeding habits indicate that the presence of this periodic trogloxene in the cave is not “accidental”, but that it remains there for a long period during its life cycle.
Observations Sur Les Comportements De Lucifuga Subterranea Poey (Pisces, Ophidiidae), Poisson Cavernicole De Cuba, G. Thinès, M. Piquemal
Observations Sur Les Comportements De Lucifuga Subterranea Poey (Pisces, Ophidiidae), Poisson Cavernicole De Cuba, G. Thinès, M. Piquemal
International Journal of Speleology
The swimming behaviour and the sensory reactions of the blind Cuban cave fish Lucifuga subterranea Poey were studied on a single individual during a period of 6 months. Mechanical stimulation elicits but slight reactions. Gustatory substances in solution elicit fairly typical motor responses which are not followed by systematic exploration behaviour, the same being true for stimulations by odours of prey. The presence of moving prey provokes an oriented exploration with a slight plunging movement of the kind evidenced in other cave fishes. Actual seizing of the prey requires an active approach of the latter towards the anterior part of …
Adolph Schmidl (1802 - 1863) The Father Of Modern Speleology?, T. R. Shaw
Adolph Schmidl (1802 - 1863) The Father Of Modern Speleology?, T. R. Shaw
International Journal of Speleology
A. Adolf Schmidl (1802-1863) was the first person to regard speleology as a single coherent subject. Besides making important new explorations, he studied karst hydrology and underground meteorology and was also closely concerned with the work of others on cave fauna and flora. His publications ensured that his achievements were known to his successors, but his influence was less widespread than that of Martel who nevertheless called him “the real originator of speleology”.
The Development Of Limestone Cave Systems In The Dimensions Of Length And Depth, Derek Clifford Ford, R. O. Ewers
The Development Of Limestone Cave Systems In The Dimensions Of Length And Depth, Derek Clifford Ford, R. O. Ewers
International Journal of Speleology
Karst caves are defined as solutional cavities 5-16 mm in diameter and discussion is limited to cases where such continuously extend to a surficial input or output or both. Three opposed sets of general genetic hypotheses (“the classical hypotheses”) have been presented for such caves, Arguing that the majority develop 1) in the vadose zone 2) in the phreatic zone 3) proximate and parallel to a watertable. It is contended here that vadose, phreatìc and watertable caves are all of common occurrence and may be linked in one genetic theory. A four state model is proposed in which ideal phreatic …
Niveaux De Base Actuels Dans Les Principaux Canyons Du Languedoc Oriental Et Des Plans De Provence, G. Fabre, J. Nicod
Niveaux De Base Actuels Dans Les Principaux Canyons Du Languedoc Oriental Et Des Plans De Provence, G. Fabre, J. Nicod
International Journal of Speleology
In a karstic country cut by a canyon in which runs an allogenic river, there are several base levels (karstic, fluvial...); chiefly if the limestones develop greatly under the bottom of the gorge. The difficulty of characterizing them appears in all the definitions given. From the example of the three most important canyons of the Eastern Bas Languedoc (South-East of France) and with the different geological controls (s.l.) one ascertains that at present: a) When an allogenic and surface river is perennial without important loss there is a total connection between fluvial level and karstic base level. b) When an …