Meeting Abstract 136-2  Tuesday, Jan. 7 13:45 – 14:00  When Five Means Four (and Something Else): Ontogeny of the Pectoral Fin of the Plainfin Midshipmen, Porichthys notatus (Batrachoididae: Batrachoidiformes), with implications to evolution of Batrachoidiformes VAZ, D/F*; HILTON, E/J; Virginia Institute of Marine Science, College of William & Mary dbistonvaz@vims.edu Batrachoidiformes is a monophyletic group of mostly […]

Meeting Abstract 136-3  Tuesday, Jan. 7 14:00 – 14:15  Ventral-dorsal inversion of the air-filled organ (lungs, gas bladder) in vertebrates FUNK, EC*; KURPIOS, NA; MCCUNE, AR; Cornell University; Cornell University; Cornell University ef347@cornell.edu Study of the origin of evolutionary novelties is central to understanding the history of life. With advancements in developmental genetics, we can investigate the […]

Meeting Abstract 136-1  Tuesday, Jan. 7 13:30 – 13:45  Thyroid Hormone Mediates Proximal-Distal Patterning in Zebrafish Fin Skeleton HU, Y*; HARPER, M; DONAHUE, J; ACOSTA, B; MCMENAMIN, S; Boston College; Boston College; Boston College; Boston College; Boston College hucy@bc.edu Caudal fin morphology varies extensively among fish species, yet we know very little about the developmental programs underlying […]

Meeting Abstract 136-6  Tuesday, Jan. 7 14:45 – 15:00  Hox-logic of Rove Beetle Chemical Weaponry KISHI, Y*; BRÜCKNER, A; THOMAS, IM; PARKER, J; California Institute of Technology, Pasadena, CA; California Institute of Technology, Pasadena, CA; Columbia University, New York, NY; California Institute of Technology, Pasadena, CA ykishi@caltech.edu In the rove beetle subfamily Aleocharinae (Coleoptera: Staphylinidae) symbiosis with […]

Meeting Abstract 136-7  Tuesday, Jan. 7 15:00 – 15:15  Heterodox Ligands in an Ancient Signaling Center in Octopus Brain ALBERTIN, CB*; PARNAIK, R; RAGSDALE, CW; Marine Biological Laboratory and University of Chicago; University of Chicago; University of Chicago calbertin@mbl.edu Widely shared across metazoan neural development is a transcription factor network implicated in anterior-posterior brain patterning, including OTX […]

Meeting Abstract 136-5  Tuesday, Jan. 7 14:30 – 14:45  Functional analysis, by CRISPR mutagenesis, of genes in the atomized Hox cluster of the leech Helobdella austinensis WINCHELL, CJ*; LEE, DT; REYES-RIVERA, J; RODRIGUEZ, A; TORRES, MM; WEISBLAT, DA; UC Berkeley cjwinchell@berkeley.edu Leeches are active epibenthic predators or ectoparasites; in contrast, their ancestors and close extant relatives (oligochaetes) […]

Meeting Abstract 136-4  Tuesday, Jan. 7 14:15 – 14:30  Determining the role of oral-aboral patterning on neurogenesis in the sea anemone, Nematostella vectensis FALTINE-GONZALEZ, DZ*; LAYDEN, MJ; Lehigh University; Lehigh University dzf215@lehigh.edu Cnidarian nerve nets are believed to represent the ancestral nervous system that gave rise to centralized nervous systems (CNS), a trait of bilaterians. Determining how […]

Meeting Abstract 136.6  Monday, Jan. 7  Lusitanian nemertean species in Lough Hyne Marine Reserve, SW Ireland TROWBRIDGE, C.D.**; LITTLE, C.; STIRLING, P.; PILLING, G.M.; DLOUHY-MASSENGALE, B.L.; Oregon Institute of Marine Biology; Beggars Knoll, Westbury, UK; Beggars Knoll, Westbury, UK; Secretariat of the Pacific Community, New Caledonia; Oregon Institute of Marine Biology cdt@uoregon.edu The warm-water nemertean Paradrepanophorus crassus, […]

Meeting Abstract 136.2  Monday, Jan. 7  Long-standing larval mystery solved �”Pilidium recurvatum is the larva of Riserius sp., a basal heteronemertean (Heteronemertea; Pilidiophora; Nemertea) HIEBERT, T. C.*; VON DASSOW, G.; HIEBERT, L. S.; MASLAKOVA, S. A.; Oregon Institute of Marine Biology, University of Oregon; Oregon Institute of Marine Biology, University of Oregon; Oregon Institute of Marine Biology, […]

Meeting Abstract 136.5  Monday, Jan. 7  First Xenoturbella spp. (Xenoturbellida) from the Pacific ROUSE, GW*; WILSON, NG; VRIJENHOEK, RC; Scripps Institution of Oceanography; Australian Museum; Monterey Bay Aquarium and Research Institute grouse@ucsd.edu Xenoturbella is an enigmatic bilaterian taxon of animals that currently contains two nominal species, Xenoturbella bocki Westblad 1949 and Xenoturbella westbladi Israelsson 1999, both from […]