http://repository.naturalis.nlNaturalis RepositoryenNaturalisdpcmedewerkers-uba@uva.nl (DPC Medewerkers)dpcmedewerkers-uba@uva.nl (DPC Medewerkers)Thu, 23 Feb 2012 00:02:07 UThttp://www.repository.naturalis.nl/n/naturalis/graphics/logo.jpghttp://repository.naturalis.nlhttp://repository.naturalis.nl/record/391881http://repository.naturalis.nl/record/391881http://repository.naturalis.nl/record/408471http://repository.naturalis.nl/record/408471Introduction Recently Mr AI Deynzer (Sanibel Island. Florida) sent me some unidentified pectinoid specimens from the Philippines for examination . Among these there are two new species.H.H. Dijkstrahttp://repository.naturalis.nl/record/408473http://repository.naturalis.nl/record/408473Born described in two publications (1778, 1780) the molluscs in the collection of Empress Maria Theresa (1717-1780), now in the Natural History Museum at Vienna. In this paper the Pectinidae type material is described. Ten new species were introduced of which Argopecten nucleus (Born, 1778) and Minnivola pyxidata (Born, 1778) are valid taxa. The remaining eight names are junior or senior synonyms and there is also a nomen inquirendum.H.H. Dijkstrahttp://repository.naturalis.nl/record/408489http://repository.naturalis.nl/record/408489This paper deals with the described and figured Pectinidae of the three editions of Knorr’s “Vergnügen”. Plates are compared and treated taxonomically. Three new junior synonyms are recognized and ten figures are type figures of nominal taxa.H.H. Dijkstrahttp://repository.naturalis.nl/record/408490http://repository.naturalis.nl/record/408490The waters of the State Reserve „De Groote Peel", situated on the border of the provinces of North-Brabant and Limburg in the Netherlands, were investigated during Easter 1971 (8-11th of April). The reserve is a former peat-moor, where peat was cut until the first half of this century. Now vast areas of Molinia caerulea with wild shoots of Salix aurita and Betula pubescens are found. Special attention was paid to waterbugs (Heteroptera aquatica and semi-aquatica) and waterbeetles (Coleoptera aquatica). The species present indicate slightly polluted oligotrophic water. The pollution is probably caused by three factors: the inflow of eutrophic water, the breeding of Blackheaded Gulls (Larus ridibundus) and the tourists. Table 1 gives a list of the insect-species collected. One macropterous specimen of Hebrus ruficeps was found between 100 micropterous specimens. Macropterous specimens of this species were only found twice previously in the Netherlands (lit. 6 and 8). A comparison with the results of Higler (1967), who investigated the same area in autumn 1966, is given.E.J. van Nieukerken, J. van Tolhttp://repository.naturalis.nl/record/408491http://repository.naturalis.nl/record/408491A hydrobiological description of eight ditches in the Dutch inland polders „Oude Land van Strijen" and „St.-Anthoniepolder" (province of South-Holland) is given. The flora and macrofauna (table 2 and 3) have been studied in July and October 1971. A few chemical data (chloride-content and conductivity) of the water are presented. In the northern part of the area the percolating water is fresh due to the influence of the „Binnenbedijkte Maas", one of the few real freshwater lakes of the Deltaic region. In the southern part it is brackish due to the influence of the „Hollands Diep". The bottomprofile of the polders shows heavy river-clay poor in chalk (upper 40-100 cm) on peat. The examined ditches are hardly polluted and the water is clear. On the bottom of the ditches there is little sapropelium present and a pioneer character is conserved by cleaning the ditches yearly in late autumn. Chemical cleaning methods by herbicids are not used in these polders. The flora and fauna of the ditches are very rich as shown in table 2 and 3.E.J. van Nieukerken, G. van der Veldehttp://repository.naturalis.nl/record/408494http://repository.naturalis.nl/record/408494Three species of Nepticulidae are recorded for the fi rst time from the Maltese Islands. Acalyptris minimella, Ectoedemia euphorbiella, and Parafomoria pseudocistivora are added to the previously recorded Stigmella aurella. A short description of the adults and notes on ecology are given. Information on the egg oviposition and number of mines on leaves collected locally is provided for all species. Adults and mines are illustrated and distributional data is also provided.M. Zerafa, E.J. van Nieukerkenhttp://repository.naturalis.nl/record/408504http://repository.naturalis.nl/record/408504http://repository.naturalis.nl/record/408509http://repository.naturalis.nl/record/408509Twenty-nine species of Pectinoidea (12 Propeamussiidae, 1 Entoliidae, 16 Pectinidae) are recorded from the Austral Islands, the southernmost archipelago of French Polynesia. One genus (Pectinidae: Lamellipecten n. gen.) and five species (Propeamussiidae: Parvamussium australanum n. sp., Cyclochlamys australensis n. sp., Cyclopecten ambiguus n. sp.; Pectinidae: Lamellipecten aduncus n. gen., n. sp., Mimachlamys erycina n. sp.) are new to science, and most others are new records for the archipelago. The near-shore fauna of Rapa has 12 species of Pectinidae, and half of these have narrow-range distributions. Such a remarkably high level of marine endemism is shared by other mollusc taxa on Rapa.H.H. Dijkstra, P. Maestratihttp://repository.naturalis.nl/record/408511http://repository.naturalis.nl/record/408511This paper lists 22 pectinoid types (21 primary and one secondary) and three potential syntypes in the Museum of Natural History (ZMB) in Berlin. Eight lectotypes are designated herein for the stabilization of taxonomic names: Pecten aequatorialis, Pecten australis, Pecten clathratus, Camptonectes gaussianus, Pecten nigromaculatus, Pecten puncticulatus, Pecten pycnolepis and Pecten vesiculosus. Nomenclatural notes on the types and further specimens are provided and the current systematic positions of the covered taxa are reported.H.H. Dijkstra, F. Köhlerhttp://repository.naturalis.nl/record/408533http://repository.naturalis.nl/record/408533In March 2004, eight pectinoidean species (7 Pectinidae and one Propeamussiidae) are collected by scuba-diving from Bonaire (Netherlands Antilles), of which five are new records (Pectinidae: Decatopecten antillarum, Euvola chazaliei, Laevichlamys multisquamata, Spathochlamys benedicti; Propeamussiidae: Similipecten nanus).H.H. Dijkstra, R.G. Moolenbeekhttp://repository.naturalis.nl/record/408535http://repository.naturalis.nl/record/408535Pectinoidea is a superfamily of marine bivalve mollusks. Type series of the two new Pectinoidea species, Parvamussium liaoi (Propeamussiidae) and Scaeochlamys squamea (Pectinidae), collected during deep-sea cruises off south and northeastern Taiwan in 2000 and 2001, respectively, were relocated from the Muséum national d'Histoire naturelle, Paris, France and the National Museum of Natural Sciences, Taichung, Taiwan (NMNS) to the Mollusca collection of National Museum of Marine Biology and Aquarium, Pingtung, Taiwan (NMMBM). A catalog denoted of the original NMNS and the new registered NMMBM codes, scientific names in Chinese, and color plates of the type series are provided.C. Chang, S. Cheng, H.H. Dijkstrahttp://repository.naturalis.nl/record/409031http://repository.naturalis.nl/record/409031Botanical and zoological collections may serve as archives for historical ecological research on the effects of global change and human impact on coral reef biota. Museum collections may harbour old specimens of reef-dwelling species that have become locally extinct. Such collections also help to determine whether early records of invasive species can be obtained from times when they were not yet recognized as such. A case study (2006) involving Saba Bank, Caribbean Netherlands (former Netherlands Antilles), suggests that the coral reef fauna here may have become impoverished when compared with data obtained during an earlier expedition in 1972. However, the 1972 sampling may have been incomplete, as it was performed by professional divers who were not trained taxonomists, whereas the collecting in 2006 was done by experienced marine biologists who knew the taxa they were sampling. As Saba Bank has been under stress due to the anchoring of large vessels, and invasive species have been a potential threat as well, future studies are needed to obtain more insights into the changing reef biota of Saba Bank. Using this Saba Bank example, we want to address the importance of natural history collections as reservoirs of valuable data relevant to coral reef biodiversity studies in a time of global change. As such, these collections are still underexplored and underexploited.B.W. Hoeksema, J. van der Land, S.E.T. van der Meij, L.P. van Ofwegen, B.T. Reijnen, R.W.M. van Soest, N.J. de Voogdhttp://repository.naturalis.nl/record/409032http://repository.naturalis.nl/record/409032Part of the genus Lioconcha Mörch, 1853 is reviewed. Species strongly resembling Lioconcha castrensis (Linnaeus, 1758) are discussed and two new species are described: Lioconcha arabaya n. sp. from the Northwest Indian Ocean and Lioconcha rumphii n. sp. from Thailand and Sumatra. These three species, together with Lioconcha macaulayi Lamprell & Healy, 2002, share many morphological similarities and we suspect them to be closely related. They are referred to as the Lioconcha castrensis species group. Furthermore, lectotypes of Venus castrensis Linnaeus, 1758, and Venus fulminea Röding, 1798, are designated. The latter is considered a junior synonym of V. castrensis.S.E.T. van der Meij, R.G. Moolenbeek, H. Dekkerhttp://repository.naturalis.nl/record/409034http://repository.naturalis.nl/record/409034In 1937/38 representative mollusc collections were made in Jakarta Bay (West Java, Indonesia). New data from here and the adjacent offshore Thousand Islands archipelago (Kepulauan Seribu) became available in 2005. Although collecting efforts and sampling methods differed, a comparison of the molluscan fauna of Jakarta Bay between 1937/38 and 2005 reveals a distinct deterioration. From 1937 to 2005, Jakarta Bay received increasing amounts of sewage from the greater Jakarta area, as well as increased sediment input from the deforested West Java hinterland. Predatory gastropods and numerous mollusc species associated with carbonate (reef) substrate have vanished from Jakarta Bay, among which many edible species.S.E.T. van der Meij, R.G. Moolenbeek, B.W. Hoeksemahttp://repository.naturalis.nl/record/409039http://repository.naturalis.nl/record/409039On two separate occasions during fieldwork in Semporna (eastern Sabah, Malaysia), sea anemones of the family Edwardsiidae were observed attempting to feed on the nudibranch species Nembrotha lineolata and Phyllidia ocellata. These are the first in situ observations of nudibranch predation by sea anemones. This new record is compared with known information on sea slug predators.S.E.T. van der Meij, B.T. Reijnenhttp://repository.naturalis.nl/record/409044http://repository.naturalis.nl/record/409044Coral reefs in Jakarta Bay have been subjected to scientific studies since the 1920s. Also from that time on biological collections were made. The reefs in the Jakarta Bay have been under long-term natural and anthropogenic stress. With the biological collections and historical documents the coral species richness in Jakarta Bay around 1920 was reconstructed. New data from this bay and the adjacent offshore Thousand Islands archipelago were obtained during a 2005 research expedition. A comparison of the coral assemblages between 1920 and 2005 reveals a clear decline in species numbers. The most prominent results include the near-shore disappearance of species belonging to the families Acroporidae, Milleporidae, and to a lesser extent Poritidae. The overall coral species composition of the reefs has changed considerably, which is partly reflected in a strong decline in coral species richness. About half the number of species recorded in 1920 was found again in 2005.S.E.T. van der Meij, Suharsono, B.W. Hoeksemahttp://repository.naturalis.nl/record/409046http://repository.naturalis.nl/record/409046During the Snellius expedition (1929-30) in eastern Indonesia and the Philippines, a large collection of Acropora corals was made. This collection is comprised of roughly 700 specimens, many of which remain unidentifi ed. In this paper we discuss species of the Acropora humilis group collected during the expedition and compare the records with the known distribution ranges in Indonesia. New records are found, most notably for Acropora multiacuta, A. retusa and A. fastigata.S.E.T. van der Meij, R.R. Visserhttp://repository.naturalis.nl/record/409047http://repository.naturalis.nl/record/409047An overview of the octocoral and hydrozoan host species of pygmy seahorses is provided based on literature records and recently collected field data for Hippocampus bargibanti, H. denise and H. pontohi. Seven new associations are recognized and an overview of the so far documented host species is given. A detailed re-examination of octocoral type material and a review of the taxonomic history of the alcyonacean genera Annella (Subergorgiidae) and Muricella (Acanthogorgiidae) are included as baseline for future revisions. The host specificity and colour morphs of pygmy seahorses are discussed, as well as the reliability of (previous) identifications and conservation issues.B.T. Reijnen, S.E.T. van der Meij, L.P. van Ofwegenhttp://repository.naturalis.nl/record/409048http://repository.naturalis.nl/record/409048During fieldwork in Raja Ampat, West Papua, Indonesia, in 2007, a pontoniine shrimp, most likely belonging to the genus Anchistus, was collected from a coral boring bivalve of the genus Spengleria. This is the first record of a pontoniine shrimp living in association with a boring bivalve. As it probably concerns a juvenile shrimp, its identity remains unclear. Its affinities with the Indo-West Pacific mollusc-associated genera and with congenerics are discussed.C.H.J.M. Fransen, S.E.T. van der Meijhttp://repository.naturalis.nl/record/409107http://repository.naturalis.nl/record/409107http://repository.naturalis.nl/record/409113http://repository.naturalis.nl/record/409113The study of snaks from the Guianan region got an early start in 1705 when several species were pictured by Merian. As relatively large proportion of the snakes described by Linnaeus originated from Surinam. Interest for and knowledge of this group of animals steadily increased in the 18th and 19th century (80 species known at the turn of the century), but only in the second part of the 20 th century detailed studies of snake faunas from (part of) the Guianan region appeared. No such study for the entire area has been published till now. At present a total of 134 species of snakes, belonging to 159 taxa, is known. Only 19.4% is endemic, the majority (43.4%) belong to species with an Amazonian distribution. Seventeen species (12.7%) are venemous, ten belonging to the Elapidae, seven to the Crotalidae. Several taxonomic problems are discussed, Cercophie auratus (Schlegel) is restored as a valid taxon and redescribed. Analysis of available distribution data shows that forest snakes are fairly evenly distributed throughout Amazonia and Guiana. Snakes restricted to open formations are spread evenly throughout Guiana, but most of them are absent in western Amazonia. When taking together ubiquists and snakes restricted to open formations there is a fair resemblance between the faunas of Guiana and .Iquitos, but only a moderate one between Santa Cecilia and Guiana,possibly reflecting the influence of species belonging to the Andes foothill fauna (Napo refuge). Within Guiana apparently there are no unsurmountable barriers to snakes, the differences that are observed between the western and eastern/Brazilian part can be explained. by the presence of species barely raching these areas. Probably these species are still in the process of expanding their range.M.S. Hoogmoedhttp://repository.naturalis.nl/record/409744http://repository.naturalis.nl/record/409744An evaluation of the existing SPIX/WAGLER type material in the museums in Munich and Leiden is given. It transpired that a considerable part of the type material, which was thought to have been destroyed during the second world war, is still extant. The material is described briefly, its presenttaxonomic status is discussed and, where necessary, lectotypes are selected. Arising from this survey a number of nomenclatural changes are necessary. Natrix cinnamomea Wagler is here considered a species incertae sedis, possibly a species of Pseutes, which contrasts with the current opinion that this is a species of Chironius. BotbropsMegaera Wagler and B. leucurusWagler are consideredconspecifie and should be known under the name B. leucurus Wagler. Both B. Furia Wagler and B. tessellatus Wagler are synonyms of B. atrox (L.).. B. taeniatus Wagler is identical with B. castelnaudiDumeril& Bibron, and the species subsequently has to be called B. taeniatus Wagler. Leptotyphlops tenella Klauber is synonymised with L. albifrons Wagler. Emys cayennensis Schweigger is considered a synonym of Podocnemis expansa (Schweigger). E. Tracaxa Spix and E. macrocephala Spix are conspecific and should be correctly called Peltocephalus tracaxa (Spix.). Podocnemis unifilis Troschel and E. dumeriliana Schweigger are identical; in orderto preserve stability suppression of E. dumeriliana and maintenance of P. unifilis as the valid name for the taxon is suggested (the opinion concerning the complex PodocnemislPeltocephalus has to be revised again according to a recent telephone and letter information of P. C. H. PRITCHARD; see footnote page342). Rana mystacea Spix contained two species, Leptodactylusmystaceus (recently incorrectly named L. amazonicus Heyer) and L. spixii Heyer, recently described. Rana binotataSpix and Hyla abbreviata Spix are considered conspecific. WAGLER (1830 b), acting as first revisor, used the name Enydrabius abbreviatus for this taxon which is currently known as Eleutherodactylus binotatus. The Commission will be requested to give R. binotata precedence over H. abbreviata. Hyla cinerascens Spix is identical with H. granosa Boulengerand would have priority. It is suggested that H. cinerascens be suppressed. Hyla nebulosa Spix is identical with Ololygon egleri Lutz and has priority, we suggest that this taxon henceforth be known as O. nebulasa (Spix), The four taxa of the Bufo typhonius group described by Spix (B. naricus Spix, B. nasutus Schneider, B. acutirostris Spix and B. proboscideus Spix) are treated here as separate taxa, awaiting further study of this group. MEDEM's efforts to reintroduce the specific name sclerops for the species widely known as Caiman crocodilus are refuted on the basis of type material and misinterpretation of the Rules of Nomenclature. The synonymisation of Anolis violaceus Spix with A. punctatus Daudin and that of Gecko(Lophyrus) crucifer Spix with Hemidactylus mabouia (Moreau de Jonnes) are doubted, butbecause of lack of type material no further action is taken. Brazilian authors are followed in using the name Mabuya bistriata (Spix) for Amazonian skinks, where as Scincus nigropunctatus Spix is considered Mabuya spec. Sepsfragilis Raddi has priority over PygOpU5 striatus Spix, put as this name change would upset a long established name, it is suggested to suppress Seps fragilis.M.S. Hoogmoed, U. Gruberhttp://repository.naturalis.nl/record/410532http://repository.naturalis.nl/record/410532Of the 29 species of Pectinidae here recorded from South Africa and Mozambique, ca. 76% have Indo-West Pacific origins, 17% are of Mediterranean-West African origin and ca. 7% are probably of Southern Ocean origin. New species: Mirapecten tuberosus, Veprichlamys africana. New subspecies: Aequipecten commutatus peripheralis. New synonyms: Chlamys liltvedi Wagner, 1984 = Laevichlamys lemniscata(Reeve, 1853). Genus Karnekampia Wagner, 1988 = Pseudamussium Mörch, 1853, Somalipecten Waller, 1996 = Mirapecten Dall, Bartsch & Rehder, 1938. Perapecten Wagner, 1985, and Lindapecten Petuch, 1995 = Aequipecten Fischer, 1886. New records for South Africa: Delectopecten musorstomi Poutiers, 1981; Anguipecten picturatus Dijkstra, 1995; Decatopecten amiculum (Philippi, 1851); D. plica (Linnaeus, 1758); Glorichlamys elegantissima (Deshayes, 1863); Gloripallium pallium (Linnaeus, 1758); Juxtamusium maldivense (Smith, 1903); Laevichlamys deliciosa (Iredale, 1939), L. lemniscata (Reeve, 1853); Pedum spondyloideum (Gmelin, 1791); Semipallium crouchi (Smith, 1892); S. flavicans (Linnaeus, 1758); Haumea minuta (Linnaeus, 1758). New combinations: Chlamys gilchristi Sowerby, 1904, to Pseudamussium; Chlamys weberi Bavay, 1904, to Laevichlamys; Pecten coruscans Hinds, 1845, to Semipallium; Chylams [sic] humilis Sowerby, 1904, and Ostrea multistriata Poli, 1795, to Talochlamys. Lectotypes designated: Pallium striatum Schumacher, 1817; Pecten velutinus Sowerby, 1842; Pecten strangei Reeve, 1852.H.H. Dijkstra, R.N. Kilburnhttp://repository.naturalis.nl/record/410534http://repository.naturalis.nl/record/410534The Icelandic pectinoid fauna is reviewed, based on material from the benthic survey programme BIOICE and 17 species are recorded. Similipecten oskarssoni is proposed as a replacement name for Pecten groenlandicus var. minor Locard, 1898 (Propeamussiidae), which is considered a valid species. Lectotypes are designated for Pecten groenlandicus var. minor and Pecten frigidus Jensen, 1904 (Pectinidae). Cyclopecten ambiannulatus Schein, 1989, Parvamussium propinquum (Smith, 1885), Catillopecten eucymatus (Dall, 1898), and Aequipecten opercularis (Linnaeus, 1758) were previously not known from the Icelandic fauna. All species are figured and described and distinguishing characters are discussed. The distribution in Scandinavian and North Atlantic waters is revised based on the collections in SMNH. The low frequency of juvenile specimens of A. opercularis, Mimachlamys varia and Pecten maximus may indicate that Scandinavian populations are the result of very occasional recruitment.H.H. Dijkstra, A. Waren, G. Gudmundsson