Cormocephalus | |
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Cormocephalus rubriceps | |
Scientific classification ![]() | |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Subphylum: | Myriapoda |
Class: | Chilopoda |
Order: | Scolopendromorpha |
Family: | Scolopendridae |
Genus: | Cormocephalus Newport, 1844 [1] |
Type species | |
Cormocephalus rubriceps (Newport, 1843) [1] |
Cormocephalus is a genus of centipedes of the family Scolopendridae, containing the following species: [1] [2]
Lithobius is a large genus of centipedes in the family Lithobiidae, commonly called stone centipedes, common centipedes or brown centipedes.
Scolopendridae is a family of large centipedes. Nearly all species in this family have four ocelli on each side of the head and only 21 pairs of legs, but there are exceptions: two scolopendrid species feature more legs, and some scolopendrid species are eyeless and blind. Three Asian members of this family, Scolopendra cataracta, Scolopendra paradoxa, and Scolopendra alcyona, are known to show amphibious behaviour.
Scolopendra is a species-rich genus of large tropical centipedes of the family Scolopendridae.
Tityus is a large genus of thick-tailed scorpions, the namesake of its subfamily Tityinae. As of 2021, Tityus contains more than 220 described species distributed in Central America and South America, from Costa Rica to Argentina. Species in the genus Tityus have been studied for hundreds of years, long before the taxonomic classification was put in place. Tityus tend to be of medium size for scorpions, roughly 50 to 70 millimeters long. They are dark brown or red in color, and can exhibit sexual dimorphism. They can live in a variety of environments, ranging from urban to arid mountains to the Amazon Rainforest. Tityus scorpions are best known for their venom and potent sting. The genus contains several dangerously venomous scorpions, the best known of which is the Brazilian yellow scorpion, T. serrulatus. Its venom can cause severe illness, and in the young, old and infirm even death. Some experts have argued that the genus as a whole may be paraphyletic, which could explain the knowledge gaps related to Tityus.
Polydesmida is the largest order of millipedes, containing approximately 3,500 species, including all the millipedes reported to produce hydrogen cyanide (HCN).
Spirostreptus is a genus of giant millipedes of the family Spirostreptidae. It contains the following species:
Orthoporus is a genus of spirostreptid millipedes, containing around 80 species, distributed from the southern United States to Brazil and Argentina.
Allocosa is a spider genus of the wolf spider family, Lycosidae. The 130 or more recognized species are spread worldwide.
Julida is an order of millipedes. Members are mostly small and cylindrical, typically ranging from 10–120 millimetres (0.39–4.72 in) in length. Eyes may be present or absent, and in mature males of many species, the first pair of legs is modified into hook-like structures. Additionally, both pairs of legs on the 7th body segment of males are modified into gonopods.
Newportia is a genus of scolopocryptopid centipedes. It has around 50 described species to date.
Julus is a genus of millipedes in the family Julidae, containing the following species:
Pachymerium is a genus of centipedes in the family Geophilidae, containing the following species:
Chordeumatida is a large order of millipedes containing some 1200 species with a nearly worldwide distribution. Also known as "sausage millipedes," they possess around 30 body segments behind the head as adults and reach about 25 mm (0.98 in) in length.
Andrognathidae is a family of millipede in the order Platydesmida. There are about 17 genera and more than 30 described species in Andrognathidae.
Geophilus is a genus of soil centipedes in the family Geophilidae largely considered to be synonymous with Brachygeophilus. It is a mostly holarctic genus characterized by a claw-shaped ultimate pretarsus, anterior porefields, complete or nearly complete coxo-pleural sutures at the prosternum, and incomplete chitin-lines. The generic name first appeared in Brewster's Edinburgh Encyclopaedia in 1814 as Geophilus electricus. Two species in this genus include centipedes with only 29 pairs of legs, the lowest number found in the family Geophilidae: G. persephones and G. richardi.
Trigoniulus is a genus of millipede in the family Trigoniulidae. There are at least 90 described species in Trigoniulus.
Ethmostigmus is a genus of centipedes of the family Scolopendridae, containing the following species: