Morphology and DNA sequences are used to describe a new species of New Guinea Worm-Eating Snake (Elapidae: Toxicocalamus Boulenger, 1896) from Papua New Guinea: Toxicocalamus goodenoughensis n. sp., ...endemic to Goodenough Island of the D’Entrecasteaux Archipelago. Toxicocalamus goodenoughensis morphologically most closely resembles T. pachysomus Kraus, 2009, but it differs by having undivided nasal scales completely surrounding nares (vs. divided), pale yellow markings on supralabials (vs. purple), a yellow nape band (vs. unbanded uniform nape), a dark gray-brown dorsum (vs. medium brown), dark brown mottling on yellow ventral scales, darkening toward cloaca (vs. uniform light brown), and >175 ventral scales. Phylogenetically, T. goodenoughensis is sister to another D’Entrecasteaux endemic, T. nigrescens Kraus, 2017. Coalescent-based species delimitation found the new species to be uniquely delimited from all other taxa (n = 13) in all combinations of parameters settings. Micro-computed tomography (μCT) scanning revealed the presence of distinctive variation in postfrontal bone morphologies, with three morphotypes exhibited within the genus: directed forward, directed lateral/perpendicular to cranium, and absent. Toxicocalamus goodenoughensis was found to have a sickle-shaped and directed forward postfrontal bone. The directed forward morphotype was shared by T. loriae clade 3 (sensu Strickland et al., 2016), T. mintoni, T. nigrescens, and T. pachysomus. Our work is the most comprehensive phylogenetic analysis of the genus and the first study using μCT scanning for comparative morphology of Toxicocalamus. We also provide an updated dichotomous key for the genus.
Species of
Ceresium
and
Examnes
, Callidiopini, from the Philippines were reviewed. Six new species,
Ceresium elongatipenne
sp. nov.
,
Ceresium holzschuhi
sp. nov.
,
Ceresium jimcopei
sp. nov.
,
...Ceresium nigricolle
sp. nov.
,
Ceresium quinquemaculatum
sp. nov.
,
Ceresium crassum
sp. nov.
and one new subspecies,
Ceresium huedepohli mindanao
subsp. nov.
, are described. Of
Examnes
, one new subspecies,
Examnes lumawigi subrugosus
subsp. nov.
, is described. Male genitalia of eight
Ceresium
species and three
Examnes
species, in particular their endophalli and 8
th
sternites, are described and illustrated in detail. Female genitalia of three
Ceresium
species are described. The genitalia and the consequences for taxonomy are discussed.
Summary
A history of over 400 years of cultivation and taxonomy of Leontice leontopetalum is provided. Statements that it is native to Italy still require confirmation.
Summary
An account of the discovery, taxonomy and cultivation of Gymnospermium darwasicum is provided. Along with a supplement of Gymnospermium illustrations and studies published since Stearn's ...Monograph (2002).
ABSTRACT This paper presents the results obtained from the analysis of the zooarchaeological bird assemblages of the Pizzulic 2, Pizzulic 3 and Pizzulic 4 sites, located in the Englefield island, ...whose radiocarbon dates show occupations from the Middle Holocene to the first millennium of our era. The analysis of the avifauna made it possible to determine the existence of continuity in the exploitation and selection of birds for these three sites, exploiting a reduced taxonomic range and a selection focused mainly on the Phalacrocoracidae Family. Zooarchaeology, bird exploitation, middle and late Holocene, marine hunter-gatherers, taxonomic diversity. INTRODUCCIÓN Las estrategias de subsistencia en contextos de cazadores-recolectores marinos en los sitios del estrecho de Magallanes y seno Otway se observan, en general, dominadas por una especialización en la caza marina, principalmente de presas de mayor tamaño como pinnipedos (Emperaire & Laming, 1961; Legoupil, 1997; Legoupil et al. 2011; San Román, 2013; San Román et al. 2016), que presentan una mayor biomasa consumible y un elevado aporte de proteínas y grasas.
Taxonomy is as old as the human language; it arose from the need to differentiate and name edible as well as poisonous plants and to be able to pass on this knowledge to the next generation ...
En esta editorial abordamos la configuración de una taxonomía de la representación simbólica del mensaje gráfico en tanto que éste genera un código o representación simbólica de conceptos que ...permiten la comunicación. La clasificación se fundamenta en las formas portadoras de significados y sentido en base a las variables formales propuestas en la Teoría de la Representación simbólica.
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