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Gleadall I.G.,PO Box 598 | Guerrero-Kommritz J.,Biozentrum Grindel und Zoologisches Museum Hamburg | Hochberg Jr. F.G.,Santa Barbara Museum of Natural History
Zoological Science | Year: 2010

Three inkless octopodids are described from the continental shelf off southeastern South America. These octopuses are a non-commercial by-catch in the Falkland Islands fishery. Muusoctopus eureka (Robson, 1929) is one of two common inkless octopuses and is of medium size, with orange-pink skin and a distinctive pattern of irregular dark markings, interspersed with white spots visible only in living or freshly dead specimens. The second common inkless octopus is M. longibrachus akambei, a new subspecies of the Chilean species Muusoctopus longibrachus (Ibez, Seplveda and Chong, 2006). It has slender arms and is much larger at full maturity than M. eureka. It is a plain orange color when alive, pinkish cream when preserved. Muusoctopus bizikovi, sp. nov., is a smaller, rarer species, colored wine-red whether alive or preserved, and has a vestigial ink duct between the digestive gland and the anus. Relations with other species are discussed. This group of octopuses has often been associated with the genus Benthoctopus Grimpe, 1921, which is a junior synonym of Bathypolypus Grimpe (a genus of small species characterized by much shorter arms and males with a robust copulatory organ bearing transverse lamellae). It is argued that the misleading characterization of the so-called Benthoctopus group of species as "smooth skinned" is based upon the artefactual appearance of specimens fixed and preserved suboptimally following a detrimental freeze-thaw cycle of fisheries material previously frozen while at sea. © 2010 Zoological Society of Japan. Source


Hertwig S.T.,Naturhistorisches Museum der Burgergemeinde Bern | Min P.Y.,University Malaysia Sarawak | Haas A.,Biozentrum Grindel und Zoologisches Museum Hamburg | Das I.,University Malaysia Sarawak
Zootaxa | Year: 2014

A new species of stream toad of the genus Ansonia is described from Gunung Murud, Pulong Tau National Park, of north-ern Sarawak, Malaysia, Borneo. Ansonia vidua, sp. nov., is morphologically distinguished from its Bornean congeners by the following combination of characters: medium size (SVL of adult females 33.5-34.4 mm); body uniformly black-brown in life; absence of a visible pattern on dorsum or limbs; presence of two low interorbital ridges; shagreened skin on dorsum, sides and upper surfaces of the limbs with numerous homogeneously small, rounded warts; first finger shorter than second; reduced webbing between the toes and an absence of a sharp tarsal ridge. Uncorrected genetic distances be-tween related taxa of > 4.3% in 16S rRNA gene support its status as a hitherto undescribed species. Copyright © 2014 Magnolia Press. Source


Min P.Y.,University Malaysia Sarawak | Das I.,University Malaysia Sarawak | Haas A.,Biozentrum Grindel und Zoologisches Museum Hamburg
Check List | Year: 2013

We comment on the termination of the species nomen of Limnonectes rhacodus (originally described as Rana rhacoda) and report the species from two separate localities in Sarawak State, East Malaysia, based on individuals collected from Kubah National Park, Matang Range and Gunung Penrissen, Padawan, both in western Borneo. The species was previously known from central, western, and southern Kalimantan, Indonesia. These records are the first for Malaysia and extend the distribution range ca. 220 and 264 km northwest of the nearest locality of Bukit Baka-Bukit Raya National Park (West Kalimatan) and increase the species' elevational range from 500 m to 1,120 m asl. © 2013 Check List and Authors. Source


Das I.,University Malaysia Sarawak | Min P.Y.,University Malaysia Sarawak | Hsu W.W.,Columbia University | Hertwig S.T.,Naturhistorisches Museum der Burgergemeinde Bern | Haas A.,Biozentrum Grindel und Zoologisches Museum Hamburg
Zootaxa | Year: 2014

A new brightly-coloured (olive and red) species of microhylid frog of the genus Calluella Stoliczka 1872 is described from the upper elevations of Gunung Penrissen and the Matang Range, Sarawak, East Malaysia (Borneo). Calluella capsa, new species, is diagnosable in showing the following combination of characters: SVL up to 36.0 mm; dorsum weakly granular; a faint dermal fold across forehead; toe tips obtuse; webbing on toes basal; lateral fringes on toes present; outer metatarsal tubercle present; and dorsum greyish-olive, with red spots; half of venter bright red, the rest with large white and dark areas. The new species is the eighth species of Calluella to be described, and the fourth known from Borneo. A preliminary phylogeny of Calluella and its relatives is presented, and the new taxon compared with congeners from Malaysia and other parts of south-east Asia. © 2014 Magnolia Press. Source


Hertwig S.T.,Naturhistorisches Museum der Burgergemeinde Bern | Schweizer M.,Naturhistorisches Museum der Burgergemeinde Bern | Das I.,University Malaysia Sarawak | Haas A.,Biozentrum Grindel und Zoologisches Museum Hamburg
Molecular Phylogenetics and Evolution | Year: 2013

The tree-frog family Rhacophoridae is a major group contributing to the high pecies richness and reproductive diversity among vertebrates of Sundaland. Nonetheless, rhacophorid evolution, specially on Borneo, has not been studied within a phylogenetic context. In this study, we examine the phylogenetic relationships of 38 (out of 41) Bornean species of Rhacophoridae, in combination with data from previous phylogenetic studies. In the final super matrix of 91 species, we analyse sequence data from two mitochondrial and three nuclear genes. The resulting trees show the genus Rhacophorus as a paraphyletic assemblage. As a consequence, we transfer Rhacophorus appendiculatus and R. kajau to two other genera and propose the new phylogeny-based combinations- Kurixalus appendiculatus and Feihyla kajau, respectively. Furthermore, we use our phylogenetic hypotheses to reconstruct the evolution of reproductive modes in rhacophorid tree frogs. Direct development to the exclusion of a free larval stage evolved twice independently, once in an ancestor of the Pseudophilautus+. Raorchestes clade in India and Sri Lanka, and once within Philautus in Southeast Asia. The deposition of egg clutches covered by a layer of jelly in Feihyla is also present in F. kajau and thus confirms our generic reassignment. The remarkably high diversity of rhacophorid tree frogs on Borneo is the outcome of a complex pattern of repeated vicariance and dispersal events caused by past changes in the climatic and geological history of the Sunda shelf. We identified geographic clades of closely related endemic species within Rhacophorus and Philautus, which result from local island radiations on Borneo. © 2013 Elsevier Inc. Source

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