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

Up to now, the crustacean order Thermosbaenacea contained two genera with only six valid species, five from the panmediterranean region, one from Texas. Two new members of this curious group of “living fossils” have been discovered in the West Indies. The one, from two deep wells not far from the sea coast in Saint Croix (U.S. Virgin Islands), belongs to an undescribed species of the amphiatlantic genus Monodella, and is called M. sanctaecrucis. The other was found in several localities in Curaçao (Netherlands’ Antilles), in coral débris of rubble walls on the shore; it belongs to a new genus, Halosbaena showing several remarkable adaptations, e.g. having a uniramous first pereiopod and reductions in the maxilliped. The presence of very numerous...

Pycnogonida from the southwestern Indian Ocean

Ano: 1976

URL: http://www.repository.naturalis.nl/record/503963

Sixteen species of coastal or shelf Pycnogonida have been recorded from Madagascar, the Comoro Islands, and Mauritius. Two of these, Nymplion crosnieri and Pallenoides opuntia, are new to science. The ranges of Nymphon arabicum, N. setimanus, Parapallene hodgsoni, Anoplodactylus digitatus, A. versluysi, Endeis meridionalis and E. clipeata are considerably extended. Ascorhynchus corderoi, only known from Brazil, was found in Mauritius. In the light of recent work, Achelia nana may be identical with the wide-spread A. echinata. The original description of Nymphon arabicum is corrected, after re-examination of the types. A review of all uniunguiculate Nymphon-s is given. Anoplodactylus digitatus is synonymous with A. investigatoris and A. saxatilis (new...

Cyclopoida siphonostoma from Mauritius (Crustacea, Copepoda)

Ano: 1965

URL: http://www.repository.naturalis.nl/record/505144

Dix espèces de Copépodes Cyclopoïdes siphonostomes ont été recueillies à l’Ile Maurice. Parmi ces espèces, huit sont nouvelles pour la science; un genre nouveau (Monocheres), appartenant à la famille des Asterocheridae, a été créé pour une de ces espèces (M. mauritianus). Les autres espèces nouvelles sont Asterocheres halichondriae, A. genodon, A. proboscideus, Asteropontius corallophilus, Acontiophorus brevifurcatus, Bradypontius pichoni et Pteropontius pediculus. Deux espèces, Asterocheres mucronipes et Myzopontius australis, étaient déjà connues, la première de la Méditerranée occidentale, la deuxième de l’Australie.

Redescription de l’amphipode hypogé Niphargus Puteanus (Koch in Panzer, 1836), basée sur du matériel topotypique

Ano: 1966

URL: http://www.repository.naturalis.nl/record/505180

Niphargus puteanus (Koch in Panzer, 1836) is redescribed, in accordance with the criteria formulated by the “First International Colloquium on the Genus Niphargus”, at Verona (1969). The redescription is based on material collected near the type-locality, Regensburg (German Federal Republic). A neotype, and a restricted type-locality, are indicated.

The pycnogonid genus Propallene Schimkewitsch, 1909

Ano: 1974

URL: http://www.repository.naturalis.nl/record/503872

The type material of Pallene (now Propallene) longiceps Böhm, 1879, from Enosima (Enoshima), Japan, is re-described. A new species of Propallene, P. ardua, is described from shallow waters and plankton tows near Kunduchi, Tanzania. Remarks on other species of the genus are provided, as well as a key to the species actually included in Propallene,

Consequences of the discovery of Stenasellus (Crustacea, Isopoda, Asellota)² in the underground waters of Oman (Arabian Peninsula)

Ano: 1975

URL: http://www.repository.naturalis.nl/record/505545

Magniez, Guy J.; Stock, Jan H..

An overview of the present knowledge of the family Stenasellidae (Asellota; Aselloidea) is presented, focusing on the success of recent investigations of the underground waters of Oman (S.E. Arabian Peninsula). We take up the discovery of four new species of the genus Stenasellus: small species adapted to interstitial biotopes and larger ones typical of karstic aquifers. These species cohabit in ecotones between interstitial and karstic water systems. The putative presence of stenasellids in hypogean waters of Yemen and South Iran is suggested. The taxonomic status of the genus Stenasellus auct. needs to be reconsidered in the future. A scenario to explain the origin and the presence of these isopods in continental underground waters is advanced.

Stygofauna of the Canary Islands, 1. A new species of Pygocrangonyx, an amphipod genus with African affinities, from Fuerteventura

Palavras-chave: Arid climate cohabitation of species ecotones; Gen. Stenasellus marine ancestors paleobiogeography Quaternary glaciations recent expansion underflow.

Ano: 1999

URL: http://www.repository.naturalis.nl/record/534303

Stock, Jan H.; Rondé-Broekhuizen, Brigitte L.M..

A group of exclusively subterranean Amphipoda, the Metacrangonyx group, is distributed mainly in northwestern Africa, with peripheral isolates on the Balearic Islands and in the Sinai desert. The discovery of a new species of this group, belonging to Pygocrangonyx, a genus known from N.W. Morocco only, on Fuerteventura (one of the eastern Canary Islands) is of great biogeographic interest since it supports the theory that this island is of continental rather than oceanic origin.

Lichomolgus pterophilus n. sp., a cyclopoid copepod associated with the East Indian sea-pen Pteroeides

Ano: 1986

URL: http://www.repository.naturalis.nl/record/504636

Description d’une nouvelle espèce de Copépode Cyclopoïde, n.sp., trouvée sur un pennatulaire des Indes Orientales, Lichomolgus pterophilus Pteroeides cf. lacazei Köll.

Medio- and infralittoral Pycnogonida collected during the I.I.O.E. near the landbase on Nossi-Be, Madagascar

Ano: 1962

URL: http://www.repository.naturalis.nl/record/504782

Fourteen identifiable species of Pycnogonida are recorded from the Nossi-Bé area, from the intertidal zone down to some 8 meters. The collection comprises 2 new species ( Nymphopsis curtiscapus and Nymphon biformidens), whereas the following 6 species are recorded for the first time from this general region: Ammothella biunguiculata (Dohrn, 1881), Rhynchothorax mediterraneus Costa, 1861, Achelia sawayai Marcus, 1940, Anoplodactylus pycnosoma (Helfer, 1938), A. turbidus Stock, 1974, and Endeis biseriata Stock, 1968.

Copepoda endoparasitic of tropical holothurians

Ano: 1974

URL: http://www.repository.naturalis.nl/record/505469

A number of Copepoda of the family Lichomolgidae, all endoparasitic in tropical holothurians, has been described. All belong to the group of genera related to Paranthessius, as borne out by the structure of their appendages, although the body-shape often has undergone modifications due to the endoparasitic mode of life. A key to the genera of the Paranthessius group is provided. Descriptions and illustrations are given of Scambicornus carinatus n.sp. (host Stichopus monotuberculatus from the Ethiopian Red Sea coast), Lichothuria mandibularis n.gen., n.sp. (host Halodeima atra from the Gulf of Aqaba), Diogenella spinicauda n. gen., n. sp. (host Holothuria mexicana from Curaçao), D. seticauda n.sp. (hosts Halodeima surinamensis and Holothuria impatiens from...

Le genre Victoriopisa signalé pour la première fois en Atlantique Nord: description de V. atlantica nov. sp. de Mauritanie (Crustacea, Amphipoda)

Ano: 1968

URL: http://www.repository.naturalis.nl/record/505454

Stock, Jan H.; Platvoet, Dirk.

A new species of Victoriopisa, a genus hitherto only known from Australia, India and Southern Africa, has been discovered in the North Atlantic, on intertidal sand flats of the Arguin Bank, Mauritania.

Amsterdam Expeditions to the West Indian Islands, Report 6. Arubolana imula n. gen., n. sp., the first hypogean cirolanid isopod crustacean found in the Lesser Antilles

Ano: 1981

URL: http://www.repository.naturalis.nl/record/505431

Botosaneanu, Lazare; Stock, Jan H..

Arubolana imula, a new stygobiont isopod genus and species of the family Cirolanidae is described from Aruba (Netherlands Antilles). The new taxon has been discovered in an artificial tunnel, used for the production of industrial water, cut into calcareous rocks from marine origin which were rather recently uplifted above sea level (90,000-500,000 years B.P.). This is the first hypogean cirolanid that becomes known from the Lesser Antilles. The quite characteristic and simplified morphology of the posterior maxillae and maxillipeds, the subterminal position of the appendix masculina, and the prehensile nature of the first and second pereiopods, distinguish the new genus very clearly from all other hypogean genera in the family Cirolanidae. The feeble...

A new species of Hemicyclops (Crustacea, Copepoda, Poecilostomatoida, Clausidiidae) associated with hermit crabs in Curaçao

Ano: 1979

URL: http://www.repository.naturalis.nl/record/503860

STOCK, J. H. 1992. A new species of Hemicyclops (Crustacea, Copepoda, Poecilostomatoida, Clausidiidae) associated with hermit crabs in Curaçao. Stud. Nat. Hist. Caribbean Region 71, Amsterdam 1992: 69-78. Hemicyclops geminatus n. sp. is described from the upper infralittoral zone of Curaçao (Antilles). It is a regular associate of three species of hermit crabs: Calcinus tibicen, Paguristes grayi, and Dardanus venosus. The new taxon appears to be a twin species of Hemicyclops columnaris HUMES, 1984, an associate of a stony coral off the Pacific coast of Panamá.

Pycnogonida from the mediolittoral and infralittoral zones in the tropical western Atlantic

Palavras-chave: Hemicyclops geminatus; Copepoda; Curaçao.; Hermit crabs.

Ano: 1992

URL: http://www.repository.naturalis.nl/record/503174

Twenty-seven species of Pycnogonida are recorded from the mediolittoral and infralittoral zones in the West Indies and of the north coast of South America, including two new species. Eurycyde acanthopus n. sp. was found on the shelf off the coast of Venezuela. Anoplodactylus monotrema n. sp. is widely distributed in the area; it has apparently been confused in the past with A. robustus (Dohrn, 1881). The morphology of the latter, and of the closely related A. virescens (Hodge, 1864), is discussed. Material from Amsterdam and St. Paul islands (Indian Ocean) attributed to A. virescens, is considered to belong to a separate species, A. dentimanus. – The range of several species is extended. Two species of Endeis, viz. E. meridionalis (Bohm, 1879) and E....

The Zoogeography of the crustacean suborder Ingolfiellidea, with descriptions of new West Indian taxa

Ano: 1979

URL: http://www.repository.naturalis.nl/record/506194

In a previous paper (STOCK, 1976b) I described, after a fortuitous find of a single specimen, an Ingolfiellid from a brackish well in Bonaire under the name of Ingolfiella (Gevgeliella) putealis. Financial support of the “Treub Maatschappij” (Utrecht) permitted me to revisit Bonaire in June 1976. At this occasion, a rich additional material of I. (G.) putealis could be collected in several brackish wells on the island; moreover, samples from a freshwater spring in Bonaire and from a marine interstitial habitat in Curaçao yielded Ingolfiellids as well, which proved to belong to undescribed species. This brings the total number of species known from the West Indies to three. Thanks are due to Mr. P. HOETJES and Mr. E. WESTINGA, for attempts to collect...

Preliminary notes on a revision of the Lichomolgidae, cyclopoid copepods mainly associated with marine invertebrates

Ano: 1977

URL: http://www.repository.naturalis.nl/record/506152

Humes, Arthur G.; Stock, Jan H..

The family Lichomolgidae Kossmann, 1877 is raised to the rank of a superfamily and subdivided into 5 families (3 of them new). Keys are provided to 76 genera belonging to the Lichomolgidoidea (32 new), which embrace 324 species. The new genera are diagnosed and of all genera the type-species is indicated.

Pycnogonida from south-eastern Australia

Ano: 1972

URL: http://www.repository.naturalis.nl/record/505470

Twenty species of Pycnogonida are recorded from shallow waters of the Australian states of Victoria and South Australia. Eight of these are new to science : Ammothea (Lecythorhynchus) ovatoides, Achelia transfugoides, Nymphon dubitabile, N. conirostrum, Pallenoides stylirostrum, Stylopallene longicauda, Parapallene avida, and Anoplodactylus spinirostrum.

A new member of the crustacean suborder Ingolfiellidea from Bonaire, with a review of the entire suborder

Ano: 1973

URL: http://www.repository.naturalis.nl/record/504869

A single specimen of an ingolfiellid was found in a slightly brackish well (locally called a “pos”) on the Bacuna estate in the island of Bonaire (Netherlands Antilles). The specimen differs from all other 21 ingolfiellid taxa, and is described as a new species, Ingolfiella (Gevgeliella) putealis. The two classification systems in use for the Ingolfiellidea, that of KARAMAN (1959) and that of RUFFO (1970), are compared and both are found not entirely satisfactory in the light of recent discoveries. A new system is devised, in which the suborder is divided into 2 families, together with 3 genera and 5 subgenera. The genera and subgenera do not only represent morphological unities, but also combine species with similar habitat requirements. Within the...

Amsterdam expeditions to the West Indian Islands, Report 2. New data on taxonomy and zoogeography of ingolfiellid Crustacea

Ano: 1976

URL: http://www.repository.naturalis.nl/record/506101

Groundwaters (in wells, springs, caves, macroporous interstitia...) of 29 Caribbean islands have been investigated. Only on the four islands off the coast of Venezuela (viz., Aruba, Curaçao, Bonaire, and Margarita) members of the suborder Ingolfiellidea (Crustacea, Amphipoda) have been encountered, altogether six species, of which three are described here for the first time. The zoogeographical implications of this limited range in the West Indies is discussed.

Corallovexiidae, a new family of transformed copepods endoparasitic in reef corals with two new genera and ten new species from Curaçao

Ano: 1979

URL: http://www.repository.naturalis.nl/record/504061

Quite a few endoparasitic copepods are known from Indo-Pacific stony corals, but not a single species has so far been recorded from the West Indies. Intensive search in the past few decades has even supported the prevailing opinion that West Indian stony corals are devoid of endoparasitic copepods, and that this absence could be related to the complicated zoogeographic past of the West Indian reef. However, during a 6-months stay (November 1973—April 1974) at the Caribbean Marine Biological Institute, in Curaçao (Netherlands’ Antilles), endoparasitic copepods have been found in not less than 14 species of stony corals. Some of these belong to a new family of curiously transformed animals, the CORALLOVEXIIDAE, of which the following forms were found during...