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All 18 species of gibbons are considered threatened with extinction and listed on the IUCN Red List of Threatened Species… Expand Pharyngocirrus gabriellae (Du Bois-Reymond Marcus 1946) and Saccocirrus pussicus Du Bois-Reymond Marcus 1948 are redescribed… Expand Polyclads are free-living Platyhelminthes with a simple, dorsoventrally flattened body and a much ramified intestine. In Brazil… Expand The composition of the taxon Proseriata (Platyhelminthes) in the São Sebastião area (S.E. Brazil) is presented and discussed. The… Expand The osteology of Rhinopycnodus gabriellae gen. and sp. nov., a pycnodontiform fish from the marine Cenomanian (Late Cretaceous… Expand All gibbons are monogamous and territorial with the exception ofHylobates concolor. This paper reports the coexistence of… Expand The Hainan black gibbon, Hylobates concolor hainanus,was originally believed to be endemic to Hainan Island. The authors of some… Expand Although the structure of adult gibbon duet singing has been characterised in most species, little is known about the ontogeny of… Expand Marg et al.1 recorded activity from an unspecified region of the human occipital cortex but the properties of neurones there were… Expand