SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Les espèces du genre Anthessius Della Valle, 1880, sont associées de façon très préférentielle à deux classes de Mollusques: les Pélécypodes et les Gastéropodes. Notre connaissance taxonomique du genre progresse actuellement de manière très rapide. Il y a cinq ans seulement, on ne connaissait que 11 espèces d'Anthessius; Illg, en 1960, en énumérait 17; récemment, Stock, Humes & Gooding (1963) en dénombraient 23. Ces derniers auteurs intégraient, pour la première fois, dans le genre Anthessius, une espèce malaise, décrite par Leigh-Sharpe, en 1934, sous le nom de Lichomolgus brevicaudis. La description originale de cette espèce, beaucoup trop insuffisante, n'en permettant pas une détermination exacte, son appartenance au genre Anthessius fut établie par...

Pteroxena papillifera n. gen., n. sp., an endoparasitic organism (Copepoda?) from the gymnosomatous pteropod, Notobranchaea

Palavras-chave: 42.74.

Ano: 1964

URL: http://www.repository.naturalis.nl/record/319261

Stock, J.H.; Spoel, S. van der.

A single specimen of a strongly transformed, endoparasitic organism was found on the gymnosomatous pteropod Notobranchaea macdonaldi Pelseneer morpha pelseneeri Pruvot-Fol off Delaware Bay in the north-western Atlantic Basin. The parasite is described as Pteroxena papillifera n. gen., n. sp., and is provisionally attributed to the subclass Copepoda of the Crustacea.

On commensal Ostracoda from the wood-infesting isopod Limnoria

Ano: 1976

URL: http://www.repository.naturalis.nl/record/505530

Vos, A.P.C. de; Stock, J.H..

Three new ostracod species, each belonging to a new genus, were described by the first author (DE VOS, 1953). They had been found on the body and the legs of Limnoria lignorum, the well-known woodburrowing isopod. Since then, we have been looking for commensals in several new lots of European Limnoria, and in this way we obtained valuable new data on morphology and distribution of two of the three ostracod species described. Moreover, Dr. Robert I. MENZIES, La Jolla, California, kindly sent us a beautiful lot of ostracods from Limnoria tripunctata MENZIES, an isopod species from the Pacific coast of America, found in test-blocks placed at about 7 feet below mean tide level, and collected in the course of the marine wood-borer studies, Project NR 163—084 at...

Einige wirbellose Tiergruppen des Dollart-Ems-Estuarium

Ano: 1956

URL: http://www.repository.naturalis.nl/record/505049

Stock, J.H.; Vos, Anna P.C. de.

Im Nachfolgenden berichten wir über einige wirbellose Tiergruppen, welche in den Jahren 1953—1956 in den Bodenproben gefunden worden sind. Fräulein A. P. C. DE VOS war mit der Bearbeitung im Jahre 1954 angefangen, aber schon bald zeigte sich die Arbeit zu umfangreich und wurde Dr. J. H. STOCK ein Teil der Bearbeitung übertragen. Erstgenannte Frl. DE VOS hat sich namentlich mit der Bestimmung der Polychaeta, Ostracoda, Cladocera, Harpacticoida und Calanoida beschäftigt, während letztgenannter Dr. STOCK die übrigen Crustacea und übrigen Evertebraten, wie Coelenterata, Bryozoa, Echinodermata, u.s.w. vorgenommen hat. Außerdem haben Frl. DE VOS in 1954, und Dr. STOCK in 1956 im Dollart-Ems-Estuarium außer den regulären Serienmustern ergänzende Sammlungen...

Redescription de Tococheres cylindraceus Pelseneer, 1929, Copépode commensal de Loripes lacteus

Ano: 1960

URL: http://www.repository.naturalis.nl/record/503913

Les Copépodes commensaux et parasites d’Invertébrés, quoique très communs dans toutes les mers, sont peu connus. En vérité, on en a décrit un nombre assez grand de genres et d’espèces, mais les descriptions sont trop souvent superficielles, voire même erronnées. Un de ces genres très peu connu est Tococheres, établi par le Professeur Paul Pelseneer, 1929, pour un Copépode trouvé sur les branchies de Loripes lacteus. Bivalve récolté dans l’Aber de Roscoff (Bretagne). La description de Pelseneer ne donne d’informations que sur la forme generale de la femelle, sur les antennules et sur la cinquième paire de pattes. On ne sait absolument rien sur l’antenne, les pièces buccales et les 4 paires antérieures de pattes thoraciques.

Range extension in 1967 of the alien amphipod, Gammarus tigrinus Sexton, 1939, in the Netherlands

Ano: 1954

URL: http://www.repository.naturalis.nl/record/505040

Dennert, H.G.; Dennert, A.L.; Stock, J.H..

The range extension of Gammarus tigrinus in The Netherlands slowed down in 1967 to a gain of no more than 2 or 3 kilometers in the north – eastern and south – eastern parts of the distribution area, and to some 18 kilometers in the south – western part. The invader reached in 1967 the provinces of South Holland and Utrecht.

Bomolochus soleae Claus, 1864 and B. confusus n. sp.: two hitherto confounded parasitic copepods, with remarks on some other Bomolochus species

Ano: 1968

URL: http://www.repository.naturalis.nl/record/505501

While studying the parasitic copepods of the Dutch Waddensea, at the Zoological Station Den Helder, I came across a species of Bomolochus from the gills of the Black Sole, Solea solea (L.). Except for the second leg, the various appendages resembled those of B. soleae CLAUS, as figured by TH. & A. SCOTT in their Ray Society Monograph (1912—13). According to them, the endopod of the second leg has narrow joints, like the exopod. They stated that the second and third leg have about the same structure. In my material, however, the endopod of the second leg has widened joints; second and third legs have, therefore, quite a different aspect. Of TH. and A. SCOTT’S material, 2 samples remained**) in the collections of the British Museum (Natural History),...

Limnic and brackish water Amphipoda (Crustacea) from Iran

Ano: 1953

URL: http://www.repository.naturalis.nl/record/504801

Stock, J.H.; Mirzajani, A.R.; Vonk, R.; Naderi, S.; Kiabi, B.H..

Records of 185 amphipod samples taken in Iran, both in the brackish Caspian Sea and in fresh waters belonging to the Caspian drainage system and the Central Basin. Twenty-nine species are represented (25 Gammaridae, 1 Pontoporeiidae, 1 Gammaracanthidae, 2 Corophiidae), of which 1 species of Obesogammarus, and 6 species of Gammarus (all from inland waters), 1 species of the new genus Scytaelina, and 1 species of Derzhavinella (both from the brackish Caspian Sea) are new to science, Obesogammarus turcarum, Gammarus imberbus, and G. syriacus are new to Iranian continental waters, whereas Gammarus aequicauda and Pontogammarus borceae are new to the Caspian Sea.

A new species of Anchimolgus (Copepoda: Poecilostomatoida: Lichomolgidae) associated with an Indonesian corallimorpharian

Palavras-chave: Iran; Amphipoda; New species; Obesogammarus; Gammarus; Derzhavinella; Scytaelina n. gen.

Ano: 1998

URL: http://www.repository.naturalis.nl/record/504949

Description of Anchimolgus cuneatus spec. nov., a lichomolgid copepod associated with an undescribed species of Pseudocorynactis (Corallimorpharia) from the Flores Sea, Indonesia. Members of this genus of Copepoda were hitherto only recorded as associates of Scleractinia.

The amphipod, Gammarus tigrinus Sexton, 1939, introduced in the Netherlands (Crustacea)

Palavras-chave: Copepoda; Lichomolgidae; Anchimolgus cuneatus spec. nov.; Corallimorpharian host; Flores Sea; Indonesia; 42.74.

Ano: 1990

URL: http://www.repository.naturalis.nl/record/318466

Nijssen, H.; Stock, J.H..

An alien amphipod, Gammarus tigrinus Sexton, has been observed in the Netherlands, mainly in oligohaline waters. It has had an “explosive” development in the Yssellake (the former Zuydersea) and occurs also in a great number of inland waterways in the province of North-Holland (fig. 1). It co-exists with, and often outnumbers, the local gammarids, G. pulex, G. zaddachi and G. duebeni. It is expected that the extension of its range will continue next years; fig. 2 illustrates the range of this introduced species in autumn 1965. Since Irish specimens of G. tigrinus were released in 1960 in the Yssellake, it is not clear whether the Dutch populations originate from the Irish stock, or whether that they were accidentally, e.g. in ballast tanks, carried to the...

A new Bomolochus (Copepoda parasitica) from the California Grunion

Ano: 1966

URL: http://www.repository.naturalis.nl/record/505062

The grunion, Leuresthes tenuis (AYRES) (family Atherinidae), a fish with a distribution limited to coastal southern California, U.S.A., and Lower California, Mexico, yielded the recently described copepod Caligus olsoni PEARSE, 1953, and still another parasitic copepod which proved to be an undescribed species of the genus Bomolochus. The species was collected by MR. ANDREW C. OLSON, Assistant Professor of Zoology at San Diego State College, who entrusted me with the material for description.

Notes on adventive Amphipoda (Crustacea, Malacostraca) on the Dutch coast

Ano: 1955

URL: http://www.repository.naturalis.nl/record/505090

Stock, J.H.; Bloklander, A.E.M.H..

During the last few years several persons have been paying attention to the animals transported by floating objects (e.g. bunches of weeds and hydroids, corks, mines, floats, etc.). A careful examination of recent finds increased the list of species known of nearly all groups of marine animals, found washed ashore on the Dutch coast, and gave a good notion of the origin of passively transported floating objects on our shores. The present authors, agreeing with IJzerman (1937), Kaas & Ten Broek (1939), Bloklander & Brouwer (1946—’47). Lucas (1950) and several others, in most cases look upon the Channel, the coast of Normandy and the South coast of England as their places of origin.

On Choniostoma and Heptalobus (Copepoda, Choniostomatidae)

Ano: 1952

URL: http://www.repository.naturalis.nl/record/505153

In the course of a study of prawns infected by epicarid isopods, I observed some specimens of Spirontocaris lilljeborgi (Dan.) showing deformations of the carapax very similar to those caused by parasitic isopods (fig. 1). In this case, however, the swellings of the carapax were not caused by epicarids, but by parasitic copepods of the family Choniostomatidae, lodged in the branchial cavity of the prawn. After painstaking dissection and examination of the appendages, I believe that my material belongs to a new species of the genus Choniostoma, for which the name Ch. rotundatum is proposed. Hitherto, 2 species only have been referred to the genus Choniostoma: Ch. mirabile Hansen, and Ch. hanseni Giard & Bonnier. These two species have been described in...

La repartition ecologique des Amphipodes de la famille des Gammaridae dans la Slack et son estuaire

Ano: 1958

URL: http://www.repository.naturalis.nl/record/505246

Stock, J.H.; Nijssen, H.; Kant, P..

The ecological distribution of 15 species of Amphipoda of the family Gammaridae in the river Slack and its estuary (Pas-de-Calais, northwestern France) is described, especially in relation to environmental factors as current and chlorinity.

The Pycnogonid family Austrodecidae

Ano: 1966

URL: http://www.repository.naturalis.nl/record/505475

DE PYCNOGONIDEN- FAMILIE AUSTRODECIDAE Toen mij, in 1954, uit Oslo een verzameling Pycnogonida van de „Norwegian Scientific Expedition to Tristan da Cunda 1937—1938“ ter bewerking werd opgezonden, kon ik niet vermoeden dat deze kleine collectie aanleiding zou geven tot een uitgebreide revisie van een gehele familie. In het Noorse materiaal van Tristan da Cunha bevond zich evenwel één Austrodecus soort, die sterk geleek op een reeds beschreven vorm van de Antarctische Austrodecus glaciale. Om geheel zeker te zijn van de determinatie vroeg ik enig vergelijkingsmateriaal van deze vorm ter leen aan het British Museum (Natural History) te London. Tot mijn verrassing bleek niet alleen het materiaal van Tristan da Cunha tot een andere soort te behoren, doch bleek...

What is Gammarus campylops of Sars, 1894

Ano: 1957

URL: http://www.repository.naturalis.nl/record/505120

Stock, J.H.; Kant, P..

A revision of the specimens described by Sars, 1894, as Gammarus campylops Leach, 1814, proved that they did not belong to that species, nor to Gammarus ochlos Reid, 1945 (= G. sarsi Reid, 1943), as Reid believed. Reid’s species, of which also original specimens have been reexamined, is identical with Gammarus zaddachi Sexton, 1912. Sars’s material is redescribed here in detail, under the name of Gammarus inaequicauda Stock, 1966.

On three new species of Echinogammarus, related to E.veneris (Heller, 1865), from Italy and Switzerland (Crustacea, Amphipoda)

Ano: 1966

URL: http://www.repository.naturalis.nl/record/505448

Pinkster, S.; Stock, J.H..

Description of three freshwater species of Echinogammarus, viz. E. fluminenis n.sp. (from northern Italy and southern Switzerland), E. ruffoi n.sp. (from northern Italy), and E. libaldii (from central Italy). New records and some notes on the morphology of E. veneris (Heller) in Italy are provided. A table summarizes the salient morphological differences between these closely related species and E. pungens (H. Milne Edwards).

Ano: 1970

URL: http://www.repository.naturalis.nl/record/504730

Macaronesian Pycnogonida

Thirty-two species of Pycnogonida are recorded from the region enclosed by the Azores, Cape Verde Islands and Mauritania, in depths between 0 and 3100 m. Of these, four are new: Eurycyde diacantha, Achelia tenuipes, Achelia turba, and Nymphon curvidens. The ranges of nine species are enlarged.

Lichomolgus longicauda (Claus, 1860), Copepod parasite of Sepia, in the North Sea

Palavras-chave: Pycnogonida; Taxonomy; Marine zoogeography; North Atlantic Ocean; Macaronesia; 42.74.

Ano: 1990

URL: http://www.repository.naturalis.nl/record/318876

Lichomolgus longicauda (CLAUS, 1860), is recorded from the gills of Sepia officinalis, captured on 5 different occasions in the North Sea and the Dutch Waddensea. This means a northward extension of the range of this species of more than 8 degrees of latitude. Figures of the parasite have been provided, and the literature bearing on the species has been reviewed.

Some notes on Notodelphys rufescens Thorell, 1860, new to the Dutch Fauna

Ano: 1956

URL: http://www.repository.naturalis.nl/record/504995

In September and October 1950, Mr. C. Swaneveld, of Zierikzee, and Mr. Jac. Viergever, of Serooskerke, collected some rich samples of Copepods, found alive in the branchial sac of certain species of Tunicates. The greater part of the Tunicates belonged to the Ascidian-species Ascidiella aspersa (O. F. Müller.) The peculiar little commensal lives in the branchial cavity, often in considerable numbers, with their posterior antenna fixed to the body wall of the Ascidian. The species of the genus Notodelphys stand lowest in the scale of species adapted to this curious mode of life : I observed them moving quickly through the water outside the Tunicate, in a jumping way. Especially when the water contains little oxygen, the animals leave their host through the...