Two new Campanulaceae from New Guinea

Two new species of Campanulaceae from New Guinea are described, Lobelia victoriensis and Wahlenbergia papuana. Keys to and enumerations of the species of both genera of New Guinea taxa are provided.     

Prefigured Features: A view from the New Guinea Highlands

Stimulated by a conference on Portraiture and the Problematics of Representation, which aimed to address portraiture as a set of cultural practices under the rubric of ‘any body-representation that stands for an individual’, in this paper I ask some questions raised by materials from Papua New Guinea. I begin with an investigation of the notion of individuation in relation to the heads which are taken in Asmat and Marind-Anim headhunting. I argue that if anyone's individuality is represented by a captured head it is that of the new owner, not his deceased victim. I then turn to Hagen feather plaques and suggest that they are best understood as assemblages of material resulting from mobilising relations, and hence not as portraits embodying notions of likeness.     

A new aero-aquatic hyphomycete from Papua New Guinea and Australia

An aero-aquatic hyphomycete with setose synnemata and scolecospores with a central isthmus is described.     

Scale bearing chrysophytes from Papua New Guinea

The scaled chrysophytes from Papua New Guinea were studied for the first time. Twenty two taxa of Chrysophyceae and Synurophyceae are reported. Species diversity was highest in black- and mixed water lakes and swamps of the Sepik floodplain. Most surprisingly. the oligotrophic highland lakes were very poor in chrysophytes.     

Blood parasites of mammals from Papua New Guinea

Thin blood smears were collected from 126 mammals representing four genera of marsupials and six genera of murid rodents. A species of Hepatozoon was discovered in the New Guinea spiny bandicoot (Echymipera kalubu), trypanosome infections were found in three genera of rodent hosts and the prevalence of a rickettsial parasite of the genus Grahamella was recorded in rodents from the genera Rattus and Melomys. Dried blood samples also were taken and screened serologically for antibodies to arenavirus infection but with negative results.     

Copepoda Poecilostomatoida associated with Bivalvia from New Guinea

Four species of Copepoda Poecilostomatoida are recorded from the mantle cavity of bivalve molluscs collected in West New Guinea (Irian Barat, Indonesia). Two of these are new to science: Pseudanthessius dimorphus and Lichomolgus hoi n. spp.     

Contributions to the Cladocera fauna from Papua New Guinea

Twenty-eight taxa of the Cladocera are identified in collections from Papua New Guinea, 17 being new records for New Guinea, bringing the total number of Cladocera taxa reported for this region to 39. Most of the taxa are circumtropical. One species (Sarsilatona papuana) is endemic to Papua New Guinea and northern Australia. The species list includes two species that are normally listed as Holarctic:Alonella nana andAlona rustica. Widespread genera such asDaphnia, Pleuroxus, Disparalona, Acroperus were strikingly absent from the Papua New Guinean material.     

Bioactive Natural Products from Papua New Guinea Marine Sponges

The discovery of novel natural products for drug development relies heavily upon a rich biodiversity, of which the marine environment is an obvious example. Marine natural product research has spawned several drugs and many other candidates, some of which are the focus of current clinical trials. The sponge megadiversity of Papua New Guinea is a rich but underexplored source of bioactive natural products. Here, we review some of the many natural products derived from PNG sponges with an emphasis on those with interesting biological activity and, therefore, drug potential. Many bioactive natural products discussed here appear to be derived from non‐ribosomal peptide and polyketide biosynthesis pathways, strongly suggesting a microbial origin of these compounds. With this in mind, we also explore the notion of sponge‐symbiont biosynthesis of these bioactive compounds and present examples to support the working hypothesis.