Flexible visual control of gaze via head saccades in Drosophila flight

Meeting Abstract 6-2  Saturday, Jan. 4 08:15 – 08:30  Flexible visual control of gaze via head saccades in Drosophila flight CELLINI, BO*; MONGEAU, J-M; The Pennsylvania State University; The Pennsylvania State University boc5244@psu.edu Flying insects guide their body by generating smooth movement and rapid, ballistic turns, named “body saccades”. After the onset of a body saccade, an […]

Conserved Neural Circuitry among Mochokid Catfish despite Morpho-Functional Diversity of Sonic and Electric Organs

Meeting Abstract 6-3  Saturday, Jan. 4 08:30 – 08:45  Conserved Neural Circuitry among Mochokid Catfish despite Morpho-Functional Diversity of Sonic and Electric Organs KéVER, L*; BASS, AH; PARMENTIER, E; CHAGNAUD, BP; Liège University, Liège, Belgium ; Cornell University, Ithaca, U.S.A. ; Liège University, Liège, Belgium; Ludwig-Maximilian University, Munich, Germany;University of Graz, Graz, Austria loic.kever@uliege.be http://keverloic.weebly.com The Elastic […]

The influence of hybridization on anemonefish evolution

CARTER, T.L.*; ERICKSON, L.B.; ELLIOTT, J.K.: The influence of hybridization on anemonefish evolution Anemonefishes (Genera:Amphiprion and Premnas; Family Pomacentridae) are a group of 28 species of coral reef fishes that are obligate symbionts of large tropical sea anemones. A recent molecular phylogenetic study of anemonefishes, based on data from two mitochondrial genes (cyt b and […]

Phylogenetic Variation in the Morphology of the Laterophysic Connection in Butterflyfishes of the Genus Chaetodon

SMITH, W.L.; WEBB, J.F.*: Phylogenetic Variation in the Morphology of the Laterophysic Connection in Butterflyfishes of the Genus Chaetodon The laterophysic connection is a unique linkage between paired anterior diverticula (horns) of the swimbladder and mesial openings in the cranial lateral-line canals in the supracleithra, which may allow the lateral-line system of butterflyfishes in the […]

Patterns of genome size evolution in tetraodontiform fishes

BRAINERD, E.L.*; MURRAY, S.S.: Patterns of genome size evolution in tetraodontiform fishes We used flow cytometry to measure genome size (pg of DNA per diploid cell) in 15 species belonging to 7 tetraodontiform families and subfamilies. Previous workers have found that members of Tetraodontidae (smooth puffers) have the smallest genome size of any vertebrate measured […]

Morphological Complexity and Simplicity of the Axial Skeleton of Teleostei

HILTON, E.J.: Morphological Complexity and Simplicity of the Axial Skeleton of Teleostei Morphological complexity is a difficult and relative term, generally equated with a greater number of parts or the elaboration of a basic structural element. The vertebral skeleton of Teleostei is among the most complex of all vertebrates, with up to thirteen discrete ossifications […]

Acquisition of Characters Facilitating Amphibious Behavior in the Oxudercine Fishes

Boyle, H.J.*; Graham, J.B.: Acquisition of Characters Facilitating Amphibious Behavior in the Oxudercine Fishes The evolutionary sequence of character acquisition associated with amphibious air breathing and terrestrial life was examined in the oxudercine fishes (Gobiidae). Included among the 10 genera (35 species) of oxudercines are forms with little to no specializations for amphibious life as […]

Trends in clade-level morphology a geometric morphometric study of the Naticidae (Mollusca Caenogastropoda)

ARONOWSKY, A.: Trends in clade-level morphology: a geometric morphometric study of the Naticidae (Mollusca: Caenogastropoda) Naticidae is a taxonomically diverse clade of marine caenogastropods that is notoriously conservative in shell morphology. Ten taxa from four clades were examined using geometric morphometrics. Thirteen landmarks were identified in apertural view, with the coiling axis used as a […]

Molecular Structure and Material Properties in Tarantula Silk

MOORE, A.M.F.; SPAGNA, J.C.; THOR, D.; LAWRENCE, B.A.: Molecular Structure and Material Properties in Tarantula Silk One of the deepest divergences in spider evolution is between the mygalomorphs (which include tarantulas) and the araneomorphs. Whereas the araneomorphs are characterized by a variety of silk types and web-building, the mygalomorphs tend to have only one type […]

Enlightenment of old ideas from new investigations The evolution of bacteriogenic light organs

NISHIGUCHI, M.K.*; BOLETZKY, S.v.: Enlightenment of old ideas from new investigations: The evolution of bacteriogenic light organs Bioluminescence is widespread among many different types of marine organisms. Metazoans contain two types of luminescence production: bacteriogenic (symbiotic with bacteria), or autogenic, via the production of a luminous secretion or the intrinsic properties of luminous cells. Several […]

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