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

A total of 56 species of West Indian Poecilosclerida incorporated in the collections of the Zoological Museum of Amsterdam is described and fully illustrated. Poecilosclerid type specimens of the Duchassaing & Michelotti (1864) collection housed in Amsterdam are redescribed. Next to these 29 new species are erected: Mycale arndti, M. diversisigmata, M. americana, M. magnirhaphidifera, Strongylacidon poriticola, S. viridis, S. rubra. Batzella rosea, Hemitedania baki, Lissodendoryx strongylata, Forcepia grandisigmata, Coelosphaera hechteli, Crella chelifera, Hymedesmia jamaicensis, H. palmatichelifera, H. agariciicola, H. curacaoensis, Acanthancora coralliophila, Clathria simpsoni, C. bulbotoxa, C. hymedesmioides, Rhaphidophlus minutus, R. raraechelae,...

A revision of the megacanthoxea-bearing tetillids (Porifera, Spirophorida), with a description of a new species

Ano: 1984

URL: http://www.repository.naturalis.nl/record/506067

A sponge collection dredged by Dr. P. WAGENAAR HUMMELINCK in the vicinity of Barbados (West Indies) contained a Cinachyralike specimen bearing large and conspicuous acanthoxea. This find induced the present author to re-examine all specimens with similar spiculation reported so far. A review of the literature revealed that a total of three such specimens has been described in two different genera, all as separate species, viz. Acanthotetilla hemisphaerica Burton, 1959, Acanthocinachyra enigmatica Levi, 1964, and Acanthocinachyra seychellensis Thomas, 1973. Both genera are reported to differ in the presence (genus Acanthocinachyra) or absence (genus Acanthotetilla) of sigmaspire microscleres. In view of the close similarity of the two genera it seemed wise...

Protosuberites denhartogi spec. nov., a new name for European ‘Prosuberites epiphytum’ (Demospongiae, Hadromerida)

Ano: 1977

URL: http://www.repository.naturalis.nl/record/506047

Soest, R.W.M. van; Kluijver, M.J. De.

The common NE Atlantic sponge species hitherto known under the name Prosuberites epiphytum (Lamarck, 1814), is differentiated from the South Australian type and other regional specimens. Spicule size and form, although generally similar, are subtly different. Australian P. epiphytum apparently persistently overgrow the thallus of algae, possibly as part of a symbiotic association, and this is not known for European specimens. In view of these facts and taking into account the disjunct distribution, it is proposed to assign the NE Atlantic populations to a new species. The genus Prosuberites has been restricted recently to species with single long tylostyles with heads embedded in a basal spongin plate, and both P. epiphytum and the new species do not...

Trochospongilla horrida, een nieuwe spons voor Nederland (Porifera: Spongillidae)

Palavras-chave: Porifera; Netherlands; Hadromerida; Protosuberites; 42.72.

Ano: 2003

URL: http://www.repository.naturalis.nl/record/220568

Soest, R.W.M. van; Storm, B.; Swarte, M.B.A..

Trochospongilla horrida, a new sponge species for The Netherlands (Porifera: Spongillidae) Trochospongilla horrida is recorded in the Netherlands for the first time. It was recently discovered during a survey of invertebrates of the river IJssel. A description of the sponge material is given and records of other sponges occurring along with it in the river IJssel are provided. The specimens are kept in the collections of the Zoölogisch Museum Amsterdam.

A revision of the genera Salpa Forskål, 1775, Pegea Savigny, 1816, and Ritteriella Metcalf, 1919 (Tunicata, Thaliacea)

Palavras-chave: Porifera; Spongillidae; Trochospongilla horrida; Nederland; Verspreiding; Herkenning; 42.72.

Ano: 2000

URL: http://www.repository.naturalis.nl/record/215293

Based on material from all oceans the Salp genera Salpa, Pegea and Ritteriella are revised. Particularly the study of the number of muscle fibres has shown that Salpa maxima var. tuberculata, the subspecies Pegea confoederala bicaudata and the generally synonymized species Ritteriella retracta are valid taxa, which are given the status of species. The existence of two groups of individuals differing biometrically within the species Salpa aspera and Ritteriella retracta is reported.

Deficient Merlia normani Kirkpatrick, 1908, from the Curaçao reefs, with a discussion on the phylogenetic interpretation of sclerosponges

Ano: 1974

URL: http://www.repository.naturalis.nl/record/505029

A specimen of the sclerosponge Merlia lacking a basal skeleton of calcareous chambers (corresponding to the description of Merlia deficiens Vacelet, 1980) is reported from the underside of the coral Agaricia at a depth of 10 m on the reef of Curaçao, Netherlands Antilles. Its spiculation is identical to Merlia normani Kirkpatrick, 1908 specimens with the basal skeleton, from which it is concluded that M. deficiens and M. normani are probably conspecific. The phylogenetic significance of a sclerosponge with an unstable calcareous skeleton is discussed and in accordance with Vacelet (in press) it is postulated that sclerosponges are polyphyletic. It is suggested that sclerosponge skeletons are an ancestral character for a large part of the Demospongiae. The...

First record of the Scyphomedusa Deepstaria enigmatica Russell, 1967, from the mid north Atlantic ocean (Coelenterata, Scyphozoa)

Ano: 1984

URL: http://www.repository.naturalis.nl/record/504574

Winkler, J.Th.; Soest, R.W.M. van.

A description is given of a specimen of Deepstaria enigmatica Russell, 1967, caught in a haul made with the Rectangular midwater trawl RMT 1+8 at 24°52.0’ N 29°59-5’ W during the Amsterdam Mid North Atlantic Plankton Expedition 1980. The specimen, which was damaged during capture, is the third recorded. It is compared with the descriptions of two previously recorded specimens from the Pacific Ocean and the Gulf of Mexico.

Indonesian sponges of the genus Petrosia Vosmaer (Demospongiae: Haplosclerida)

Ano: 1981

URL: http://www.repository.naturalis.nl/record/505365

Voogd, N.J. de; Soest, R.W.M. van.

Sponges of the genus Petrosia (Demospongiae: Haplosclerida) are large and characteristic components of many Indonesian reefs. We identify and provide descriptions of seven species of Petrosia collected recently on SW Sulawesi reefs (Eastern Indonesia), two of which are new to science: Petrosia (Petrosia) alfiani spec. nov. and Petrosia (Petrosia) hoeksemai spec. nov. Additional species recorded are Petrosia (Petrosia) lignosa Wilson, 1925, Petrosia (Petrosia) nigricans Lindgren, 1897, Petrosia (Petrosia) plana Wilson, 1925, Petrosia (Strongylophora) corticata (Wilson, 1925) and Petrosia (Strongylophora) strongylata Thiele, 1903. The species are discussed and compared with Petrosia records from other Indonesian and neighbouring Indo-West Pacific areas. We...

On the moult in the Stoat, Mustela erminea Linnaeus, 1758, from the Netherlands

Palavras-chave: Porifera; Haplosclerida; Petrosia (Petrosia); Petrosia (Strongylophora); Sulawesi; Eastern Indonesia; 42.72.

Ano: 2002

URL: http://www.repository.naturalis.nl/record/217474

Soest, R.W.M. van; Bree, P.J.H. van.

1. A detailed study was made of the subsequent stages in the colour change of the Stoat, Mustela erminea Linnaeus, 1758. 2. Starting and finishing date of both Autumn and Spring moult were determined, based on the examination of 300 pelts from the Netherlands. 3. An indication was found for the existence of a difference in finishing date of the Spring moult in male and female Stoats. The examinations showed that female Stoats complete their summercoat a good month earlier than males. 4. It appeared that there is a remarkable difference in number of completely white animals between warmer and colder parts in the Netherlands. The colder regions hold much more completely white animals. This indicates that temperature has an influence on whether Stoats turn...

A catalogue of the Coelenterate type specimens of the Zoological Museum of Amsterdam. II. Benthic Hydrozoa

Ano: 1969

URL: http://www.repository.naturalis.nl/record/504487

This second part of the Coelenterate type catalogue of the Zoological Museum of Amsterdam lists 133 nominal types of benthic Hydrozoa (112 hydroids, 21 hydrocorals).

Phylogenetic classification of the halichondrids (Porifera, Demospongiae)

Ano: 1976

URL: http://www.repository.naturalis.nl/record/505227

Soest, R.W.M. van; Díaz, Maria Cristina; Pomponi, Shirley A..

Using a multicharacter approach and numerical cladistic computer programs a phylogenetic analysis is made of a newly defined order Halichondrida (which includes all Halichondrida and parts of the Axinellida sensu Lévi, 1973), with emphasis on the newly defined family Halichondriidae (which includes the families Halichondriidae and Hymeniacidonidae sensu Lévi, 1973, and some genera formerly assigned to the Axinellidae and Desmoxyidae). The newly defined order consists of the “old” families Axinellidae/Bubaridae and Desmoxyidae, a “new” family Dictyonellidae (containing Dictyonella, Acanthella, Liosina and Dactylella), and the new concept of the family Halichondriidae. On the basis of numerous specimens, including many type and other original material from...

Sponge-collecting from a drifting ice floe: the Porifera obtained in the Kara Sea by the Dutch Polar Expedition 1882-83

Ano: 1990

URL: http://www.repository.naturalis.nl/record/504929

Tetractinellid and hadromerid sponges of the Sultanate of Oman

Palavras-chave: Arctic fauna; Carnivorous sponges; New species; Varna expedition.

Ano: 2016

URL: http://www.repository.naturalis.nl/record/614731

Soest, R.W.M. van; Beglinger, E.J..

The Sultanate of Oman harbours rich populations of sponges, especially in the four coral reef areas (Musandam Peninsula, Muscat coast & Daymaniyat islands, coasts of Masirah Island, and the Khuriya Muriya Islands). Up till now, apart from a few incidental samples, the sponges of Oman were known only from five dredge stations made by the John Murray Expedition 1933-1934 off the south coasts of Oman, near the Khuriya Muriya Islands, between 13.5 and 1415 m. Descriptions of the sponges obtained in these dredges were published by Burton (1959) and the specimens are deposited in the collections of the Natural History Museum, London. To complement these dredge samples, we recently obtained samples collected by SCUBA and shore collecting, mostly from the...

Sponge interactions with spatial competitors in the Spermonde Archipelago

Palavras-chave: Porifera; New species; Checklist; Oman; Gulf of Arabia; 42.72.

Ano: 2008

URL: http://www.repository.naturalis.nl/record/292120

Voogd, N.J. de; Becking, L.E.; Hoeksema, B.W.; Noor, A.; Soest, R.W.M. van.

This study describes the in situ effects of four bioactive sponges on their neighbours at three different locations and two depths in the Spermonde Archipelago, SW Sulawesi, Indonesia. The natural rates of interaction between the sponge species and eight possible competitive invertebrate groups were defined and quantified in circular subplots, this was repeated 25x for each of the four species and for each location and depth. Most interactions occurred with other sponges and with corals. Coral overgrowth by the four target species caused necrosis in more than 85 % of these interactions, whereas this was less than 25 % in sponge overgrowths. These results suggest that the toxins are used in spatial competition and that the concentrations of the bioactive...

Amsterdam Expeditions to the West Indian Islands, Report 13. Marine sponges from an island cave on San Salvador Island, Bahamas

Palavras-chave: Spatial competition; Allelopathy; Sponge culture; Indonesia; 42.72.

Ano: 2003

URL: http://www.repository.naturalis.nl/record/268614

Soest, R.W.M. van; Sass, Daniel B..

Dixon Hill Lighthouse Cave, about 800 m (0.5 miles) inshore on San Salvador Island, Bahamas, was found to hold populations of three sponge species new to science, viz. Pellina penicilliformis n. sp., Prosuberites geracei n. sp., and Cinachyra subterranea n. sp. The new species are described and figured, and compared with Caribbean congeneric species. The geological history of the cave is described and its implication for ideas on speciation rates in sponges is discussed.

Marine and freshwater sponges (Porifera) of the Netherlands

Ano: 1981

URL: http://www.repository.naturalis.nl/record/504363

The collections of the Rijksmuseum van Natuurlijke Historie at Leiden and the Zoologisch Museum of Amsterdam contain 19 species of Porifera (15 marine and 4 freshwater species) originating from the Netherlands. Among the marine species, Halichondria panicea (Pallas, 1766), Halichondria bowerbanki Burton, 1930, Haliclona oculala (Pallas, 1766), Cliona celata (Grant, 1826), Scypha ciliata (Fabricius, 1780) (two forms) and Leucosolenia botryoides (Ellis & Solander, 1786) (two forms) appeared to be most common. Rare or moderately rare species proved to be Ficulina ficus (Linnaeus, 1767), Prosuberites epiphytum (Lamarck, 1816), Mycale contareni (von Martens, 1824) and Haliclona loosanoffi Hartman, 1958. Hymeniacidon perlevis (Montagu, 1812), Ciocalypta...

A catalogue of the Coelenterate type specimens of the Zoological Museum of Amsterdam. I. General Introduction, Pelagic Coelenterates

Palavras-chave: 42.72.

Ano: 1977

URL: http://www.repository.naturalis.nl/record/319414

This paper represents the first part of a list of Coelenterate type specimens incorporated in the collections of the Zoological Museum. The present 46 pelagic Coelenterate types are listed with their original names accompanied by a non-critical and incomplete synonymy.

Observations on taxonomy and distribution of some Salps (Tunicata, Thaliacea), with descriptions of three new species

Ano: 1975

URL: http://www.repository.naturalis.nl/record/504862

The Salp genera Traustedtia Metcalf, 1918, Weelia Yount, 1954 and Brooksia Metcalf, 1918 are revised, resulting in the conclusion that Traustedtia is a monotypical genus, and that Brooksia on the other hand, contains two taxa, one of which is newly described under the name B. berneri. Weelia shows a confusing variation, which must await further study. The variation in Ihlea punctata (Forskål, 1775) shows that there is no ground for the assumption that the species described as Ihlea asymmetrica (Fowler, 1896) is separate from I. punctata. Two undescribed taxa, reported upon in previous studies of the present author, are now fully described as new species: Cyclosalpa danae and Thalia rhinoceros.

Juvenile colonies of the genus Pyrostremma Garstang, 1929 (Tunicata, Thaliacea)

Ano: 1975

URL: http://www.repository.naturalis.nl/record/505235

Four remarkable dome-shaped, apparently juvenile colonies, belonging to the genus Pyrostremma Garstang, 1929, are described from the Bermuda area. Comparison with juvenile colonies of P.agassizi (Ritter & Byxbee, 1905), and with larger colonies, fragments and loose zooids of P.agassizi and P.spinosum (Herdman, 1888), has rendered it likely, that these juvenile colonies belong to P.spinosum. The species of Pyrostremma are discussed.

Skeletons in confusion: a review of astrophorid sponges with (dicho-)calthrops as structural megascleres (Porifera, Demospongiae, Astrophorida)

Ano: 1974

URL: http://www.repository.naturalis.nl/record/505453

Soest, R.W.M. van; Beglinger, E.J.; Voogd, N.J. de.

We present a review of astrophorid species possessing calthrops megascleres as structural megascleres (including species with dichotriaene modifi cations, but excluding mesotriaene and trichotriaene bearing species). Radiating oxeas characteristic of most astrophorids are lacking in such sponges, but auxiliary oxeas are apparently present in some species. Th ese sponges are currently assigned to two families, Pachastrellidae with four nominal genera Dercitus, Stoeba, Dercitancorina, Halinastra (the latter two generally considered junior synonyms of Stoeba), and Calthropellidae with nominal genera Calthropella, Corticellopsis (usually considered a junior synonym), Pachataxa and Pachastrissa. Our review of many original specimens and extensive new material...