May 23, 2018 · Arthropoda [1] The phylum Arthropoda is the largest and most varied in the animal kingdom. It includes well over one million described species. This represents approximately …

Jun 8, 2018 · Arachnids Arachnids (class Arachnida) form the second largest group of terrestrial arthropods (phylum Arthropoda) with the class Insecta being the most numerous. There are …

May 29, 2018 · cephalothorax In some members of the phylum Arthropoda, the fused head and thorax. It is found in members of the Chelicerata (classes Merostomata, Arachnida, and …

May 14, 2018 · Crustacean The Crustacea are a subphylum of the animal phylum Arthropoda. This is a large and diverse group with more than forty thousand species, including crabs, …

May 8, 2018 · Trilobita (trilobites; phylum Arthropoda) The most primitive arthropod class (or in some classifications a phylum, where the Arthropoda rank as a superphylum), known from …

ARTHROPODS: INSECTS, ARACHNIDS, AND CRUSTACEANS ARTHROPODS: INSECTS, ARACHNIDS, AND CRUSTACEANS. Arthropods are animals with exoskeletons (external …

May 21, 2018 · Malacostraca (phylum Arthropoda, subphylum Crustacea) Class which contains nearly 75% of known crustaceans, including the larger forms, e.g. shrimps, crabs, and …

Marine Invertebrates Invertebrates are animals that do not have a bony internal skeleton, although many do have hard outer coverings that provide structure and protection. More than 90% of all …

May 18, 2018 · Molting One of the general characteristics that defines the phylum Arthropoda (which includes insects, spiders, and crustaceans) is an external skeleton, also called an …

May 21, 2018 · Uniramia Formerly a phylum or a subphylum of Arthropoda, in which the appendages are unbranched (i.e. uniramous) and at one time classed as members of the …