| Phrynus operculatus | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Amblypygi |
| Family: | Phrynidae |
| Genus: | Phrynus |
| Species: | P. operculatus |
| Binomial name | |
| Phrynus operculatus Pocock, 1902 | |
Phrynus operculatus is a species of tailless whipscorpion in the family Phrynidae. [1] [2] [3] [4]
This species is of medium size, measuring 18–22 mm in total length. It is of chestnut color, slightly reddish on the carapace and the pedipalps; the front area is moderately narrow, with the front edge gently bilobed. The basal segment of the chelicerae has an external tooth. Pedipalps have four anterior spines in the trochanter. In the female, the gonopods appear with the sclerite relatively short, wide in the base and with the apex narrow and curved towards the ventral surface. [5]
This species is distributed in the United States in the state of Texas and in Mexico in the states of Nuevo León, Sinaloa, Nayarit, Jalisco, Guanajuato, Colima, Michoacán, Guerrero, Morelos, Oaxaca and Chiapas. [5]
This species, having a wide distribution, seems to have great ecological plasticity. It has been found under stones, under semi-shed tree bark, and under dry cacti in xerophilous forests. [5]
The subphylum Chelicerata constitutes one of the major subdivisions of the phylum Arthropoda. It contains the sea spiders, horseshoe crabs, and arachnids, as well as a number of extinct lineages, such as the eurypterids and chasmataspidids.
Amblypygi is an ancient order of arachnid chelicerate arthropods also known as African cave-dwelling spiders, whip spiders and tailless whip scorpions. The name "amblypygid" means "blunt tail", a reference to a lack of the flagellum that is otherwise seen in whip scorpions. Amblypygids possess no silk glands or venomous fangs. They rarely bite if threatened, but can grab fingers with their pedipalps, resulting in thorn-like puncture injuries.
Pedipalps are the second pair of appendages of chelicerates – a group of arthropods including spiders, scorpions, horseshoe crabs, and sea spiders. The pedipalps are lateral to the chelicerae ("jaws") and anterior to the first pair of walking legs.
Agelenopsis, commonly known as the American grass spiders, is a genus of funnel weavers first described by C.G. Giebel in 1869. They weave sheet webs that have a funnel shelter on one edge. The web is not sticky, but these spiders make up for that shortcoming by running very rapidly. The larger specimens can grow to about 19 mm in body length. They may be recognized by the arrangement of their eight eyes into three rows. The top row has two eyes, the middle row has four eyes, and the bottom row has two eyes. They have two prominent hind spinnerets, somewhat indistinct bands on their legs, and two dark bands running down either side of the cephalothorax.
Heteropoda venatoria is a species of spider in the family Sparassidae, the huntsman spiders. It is native to the tropical regions of the world, and it is present in some subtropical areas as an introduced species. Its common names include giant crab spider, or cane spider.
The anatomy of spiders includes many characteristics shared with other arachnids. These characteristics include bodies divided into two tagmata, eight jointed legs, no wings or antennae, the presence of chelicerae and pedipalps, simple eyes, and an exoskeleton, which is periodically shed.
The sand devil or Atlantic angel shark is a species of angelshark, family Squatinidae, native to the northwestern Atlantic Ocean. It occurs off the eastern United States, in the northern Gulf of Mexico, and possibly in parts of the Caribbean Sea. This bottom-dwelling shark is found in shallow inshore waters in summer and fall, and deep offshore waters in winter and spring. The sand devil's flattened body and enlarged pectoral and pelvic fins give it a ray-like appearance. There is a band of enlarged thorns running along the middle of its back. It is gray or brown in color, with scattered small dark spots. This species reaches 1.2–1.5 m (3.9–4.9 ft) in length.
Tarantulas comprise a group of large and often hairy spiders of the family Theraphosidae. As of August 2022, 1,040 species have been identified, with 156 genera. The term "tarantula" is usually used to describe members of the family Theraphosidae, although many other members of the same infraorder (Mygalomorphae) are commonly referred to as "tarantulas" or "false tarantulas". Some of the more common species have become popular in the exotic pet trade. Many New World species kept as pets have setae known as urticating hairs that can cause irritation to the skin, and in extreme cases, cause damage to the eyes.
Phrynus marginemaculatus is a species of amblypygid found in southern Florida, the Bahamas, Cuba, and Hispaniola. They are nocturnal predators that hide during the day in small retreats.
Mastigoproctus giganteus, the giant whip scorpion, also called the giant vinegaroon or grampus, is a species of whip scorpions in the family Thelyphonidae.
This glossary describes the terms used in formal descriptions of spiders; where applicable these terms are used in describing other arachnids.
Ocepechelon is an extinct genus of giant protostegid sea turtle known from Late Cretaceous phosphatic deposits of the Oulad Abdoun Basin, Khouribga Province of Morocco. It is known from the holotype OCP DEK/GE 516, a complete but isolated 70-cm-long skull, making it one of the largest marine turtles ever described. It was first named by Nathalie Bardet, Nour-Eddine Jalil, France de Lapparent de Broin, Damien Germain, Olivier Lambert and Mbarek Amaghzaz in 2013 and the type species is Ocepechelon bouyai. The feeding apparatus of Ocepechelon, a bony pipette-like snout, is unique among tetrapods and shares unique convergences with both syngnathid fishes and beaked whales.
Phrynus is a genus of whip spiders found in tropical and subtropical regions, mostly in the new world.
Phrynus longipes is a species of amblypygid often found in the Caribbean. They are also found in other warm climate areas such as the forests of Central America. Within this region, however, Phrynus longipes lives in an array of habitats from caves to coastlines. They are protective of their territory, using their pedipalps to deter predators or unwanted visitors. Being nocturnal predators, they take shelter during the day and hunt primarily at night. Phrynus longipes feed on both vertebrates and invertebrates. They are the first amblypygid to be recorded feeding on an avian species.
Paraphrynus is a genus of whip spiders, also known as tailless whip scorpions, of the family Phrynidae. It is distributed from the southwestern United States to Central America, including several Caribbean islands. Most species are endemic to Mexico.
Acanthophrynus is a genus of tailless whipscorpions in the family Phrynidae. There is at least one described species in Acanthophrynus, A. coronatus.
Pelegrina aeneola is a species of jumping spider in the family Salticidae. It is found in North America. Not much is known about this species.
Mecaphesa celer, known generally as the swift crab spider, is a species of crab spider in the family Thomisidae. Its range is quite large, and it is found throughout much of North and Central America.
Cylindrocopturus operculatus is a species of true weevil in the beetle family Curculionidae. It is found in North America.
Phrynus garridoi is a species of Amblypygi in the family of Phrynidae.
 | This arachnid-related article is a stub. You can help Wikipedia by expanding it. |