Results 41 to 50 of about 24,507 (285)
ArthropodaHorseshoe crabs represent the most ancestral chelicerate lineage characterized by marine ecology and the possession of lateral compound eyes. While considered living fossils, recent studies reported an unusual number of Pax6 genes in the Atlantic ...
Tanay Dakarapu, Markus Friedrich
doaj +1 more source
Complete mitochondrial genome of Atergatis integerrimus (Decapoda, Xanthidae) from the Philippines
Mitochondrial DNA. Part B. Resources, 2018 In this study, a complete mitochondrial genome from the red egg crab, Atergatis integerrimus was sequenced and analyzed. The mitochondrial genome length is 16,333 bp and is composed of 13 protein-coding, two ribosomal RNA and 22 tRNA genes. The structure
Mustafa Zafer Karagozlu +4 more
doaj +1 more source
Bradoriids (Arthropoda) and the Cambrian Diversification
Géosciences, 2020 Bradoriids, among the earliest arthropods to appear in the fossil record, are extinct, ostracod-like bivalved forms that ranged from the early Cambrian to the Middle Ordovician.
M. McMenamin
semanticscholar +1 more source
ArthropodaLimb anomalies are widespread and diversified in arthropods. From trilobites to insects, they range from the loss to the addition or fusion of legs and may appear congenitally or be induced experimentally (e.g., amputation or injury).
Antoine Flandroit +2 more
doaj +1 more source
, 2013 Drabescina Ishihara, 1953 Fig. 19 Type genus: Drabescus Stål, 1870. Diagnosis Drabescina are large, robust, black, grey, or fuscous leafhoppers. They can be distinguished from Paraboloponina by the very strong antennal ledges, antennae usually somewhat shorter- 1.0 to 1.5 x width of head, rugose or striate texture of the frontoclypeus, protibia ...
Zahniser, James N., Dietrich, Chris H.
openaire +2 more sources
Trilobite Eyes and Their Evolution
ArthropodaTrilobites, as typical euarthropods, possess compound eyes. In 1901, Lindström was the first to describe them in detail; on the one hand, we reconsider his descriptions of the different modes of trilobite eyes; on the other hand, we expand this by ...
Brigitte Schoenemann
doaj +1 more source
Three New Species of the Freshwater Shrimp Genus Caridina from Australia
ArthropodaThree new species of the genus Caridina are described from the northernmost part of Australia. Caridina darwin n. sp. resembles Caridina temasek Choy and Ng, 1991 but differs in the armature of the rostrum, the development of epipods on the pereiopods ...
Werner Klotz +2 more
doaj +1 more source
, 2013 Opsiina Emeljanov, 1962 Fig. 41 Type genus: Opsius Fieber, 1866. Diagnosis Opsiina are medium sized to large, robust leafhoppers, variable in color but often yellowish, greenish, or brownish and with reticulate or irrorate brown markings; brown markings sometimes saddle-shaped.
Zahniser, James N., Dietrich, Chris H.
openaire +1 more source
The Prevalence of Egg Parasitoids of Two Cobweb Spiders in a Tropical Urban Gradient
ArthropodaParasitoidism strongly influences the structure of the spiders’ populations, and it can be affected by environmental factors such as those caused by anthropogenic actions.
Natalia Jiménez-Conejo +3 more
doaj +1 more source
Arctic Science, 2017 If the current rate of climate change continues, the composition, distribution, and relative population sizes of species in the higher latitudes of the Northern Hemisphere are likely to change considerably.
Derek S. Sikes +7 more
doaj +1 more source