The Harpactirinae are a subfamily of tarantulas which are native to the continent of Africa. Like many Old World tarantulas, they have a relatively strong venom and can inflict a painful bite.
Pterinochilus is a genus of baboon spiders that was first described by Reginald Innes Pocock in 1897. They are found all throughout Africa
Scinax constrictus is a species of frog in the family Hylidae.
The knotty pebblesnail, scientific name Somatogyrus constrictus, of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Lithoglyphidae. This species is endemic to Alabama in the United States. Its natural habitat is the Coosa River. Although the IUCN officially categorises the species as Data Deficient, it also considers it as Possibly extinct, as it has not been recorded since the river was impounded. This latter classification is also supported by The Nature Conservancy. The taxonomic validity of this species has been questioned; it may represent morphological aberrations of other, valid species. If it is a valid species, it would be assessed as threatened.
Trissexodon constrictus is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Trissexodontidae.
Rimapenaeus is a genus of prawns. It comprises six species, including the "roughneck shrimp", Rimapenaeus constrictus:
Latirus constrictus is a species of sea snail, a marine gastropod mollusk in the family Fasciolariidae, the spindle snails, the tulip snails and their allies.
Paragus constrictus is a species of hoverfly. It is found in Southern Sweden and Denmark, Ireland, Spain, Germany, the French Alps, Switzerland, Austria, Italy, Yugoslavia and Turkey and Russia east of the Urals. This species may be distinguished from Paragus tibialis only by the shape of the male parameres. In both sexes it shares with P. tibialis the character of entirely pale-haired abdominal tergites, so it is distinct from Paragus haemorrhous which has dark hairs. Images representing Paragus constrictus
Eucratoscelus constrictus is a species of tarantula belonging to the family Theraphosidae. They produce a venom that contains a group of neurotoxic peptides.
Yantaromyrmex is an extinct genus of ants first described in 2013. Members of this genus are in the subfamily Dolichoderinae of the family Formicidae, known from Middle Eocene to Early Oligocene fossils found in Europe. The genus currently contains five described species, Y. constrictus, Y. geinitzi, Y. intermedius, Y. mayrianum and Y. samlandicus. The first specimens were collected in 1868 and studied by Austrian entomologist Gustav Mayr, who originally placed the fossils in other ant genera until the fossils were reviewed and subsequently placed into their own genus. These ants are small, measuring from 4 to 6 mm in length and can be characterized by their trapezoidal shaped head-capsules and oval compound eyes that are located slightly to the rear of the capsules midpoint, with no known ocelli present.
Dyschirius constrictus is a species of ground beetle in the subfamily Scaritinae. It was described by Andrewes in 1929.
Streptognathodus is an extinct genus of conodonts from the Late Carboniferous to Early Permian.
Smicronyx constrictus is a species of true weevil in the beetle family Curculionidae.
Bradyrhynchoides constrictus is a species of broad-nosed weevil in the beetle family Curculionidae. It is found in North America.
Tomoderus constrictus is a species of antlike flower beetle in the family Anthicidae. It is found in North America.
Apristus constrictus is a species of ground beetle in the family Carabidae. It is found in North America.
Perigenes constrictus is a species of dirt-colored seed bug in the family Rhyparochromidae. It is found in Central America and North America.
Cyclotrachelus constrictus is a species of woodland ground beetle in the family Carabidae. It is found in North America.
Typhinellus constrictus is a species of sea snail, a marine gastropod mollusk, in the family Muricidae, the murex snails or rock snails.
Ceutorhynchus constrictus is a species of minute seed weevil in the family Curculionidae. It is native to Europe, but has been released as a biological control agent for garlic mustard in North America.
