‘Henicorhynchus’ thaitui, a new species of cavefish from Central Vietnam (Teleostei, Cyprinidae)

‘Henicorhynchus’thaituisp. nov. is described from a subterranean stream in a karst cave in Phong Nha Ke Bang National Park, Quang Binh Province, Central Vietnam. It differs from all congeners in having a pale pink body in life, smaller eyes with diameter less than the maxillary barbel length, and two pairs of barbels, the maxillary barbel being much longer than the rostral barbel.

Do Salamanders Limit the Abundance of Groundwater Invertebrates in Subterranean Habitats?

Several species of surface salamanders exploit underground environments; in Europe, one of the most common is the fire salamander (Salamandra salamandra). In this study, we investigated if fire salamander larvae occurring in groundwater habitats can affect the abundance of some cave-adapted species. We analyzed the data of abundance of three target taxa (genera Niphargus (Amphipoda; Niphargidae), Monolistra (Isopoda; Sphaeromatidae) and Dendrocoelum (Tricladida; Dedrocoelidae)) collected in 386 surveys performed on 117 sites (pools and distinct subterranean stream sectors), within 17 natural and 24 artificial subterranean habitats, between 2012 and 2019. Generalized linear mixed models were used to assess the relationship between target taxa abundance, fire salamander larvae occurrence, and environmental features. The presence of salamander larvae negatively affected the abundance of all the target taxa. Monolistra abundance was positively related with the distance from the cave entrance of the sites and by their surface. Our study revealed that surface salamanders may have a negative effect on the abundance of cave-adapted animals, and highlited the importance of further investigations on the diet and on the top-down effects of salamanders on the subterranean communities.

Affective Aesthetics beneath Art and Architecture: Deleuze, Francis Bacon and Vogelkop Bowerbirds

There is an aesthetic undercurrent traversing Deleuze's philosophy along confluent trajectories of Baruch Spinoza and Friedrich Nietzsche, which harbours untapped potentials and far-reaching consequences for contemporary discussions of art and architecture. According to this subterranean stream, aesthetic experience is generated, neither in ready-made mental faculties of a subject, nor in essential qualities of an object, but through affective interactions of a relational field. A cartographic inquiry of affective aesthetics constitutes the subject matter of this paper, beginning with a philosophical elaboration that connects aesthetic theories of Spinoza, Nietzsche and Deleuze, evolving via a comparative analysis of aesthetic processes specific to Francis Bacon's artistic assemblages and Vogelkop bowerbirds' architectural constructs, and concluding with the possibility of a non-anthropocentric aesthetics.