| Pachymerellus zygethus | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Myriapoda |
| Class: | Chilopoda |
| Order: | Geophilomorpha |
| Family: | Geophilidae |
| Genus: | Pachymerellus |
| Species: | P. zygethus |
| Binomial name | |
| Pachymerellus zygethus Chamberlin, 1920 [1] | |
Pachymerellus zygethus is a species of centipede in the Geophilidae family. It is endemic to Australia and New Zealand, and was first described in 1920 by American biologist Ralph Vary Chamberlin. [1] [2] [3]
This species features small denticles on the forcipular coxosternite and tarsungula, no sternal pores, and scattered coxal pores; the second maxillae have claws with small filaments. [4] The original description of this species is based on a specimen measuring about 35 mm in length with 55 pairs of legs, [1] but the number of segments in this species can range from as few as 47 to as many as 65. [3]
The species occurs in Tasmania and New Zealand. [3] [5]
The centipedes are solitary terrestrial predators that inhabit plant litter, soil and rotting wood. [5]
Himantariidae is a monophyletic family of centipedes in the order Geophilomorpha and superfamily Himantarioidea, found almost exclusively in the Northern Hemisphere. The number of leg-bearing segments in this family varies within as well as among species and ranges from 47 to 181. These centipedes are very elongated with a high mean number of trunk segments and great variability in this number within species. The maximum number of legs recorded in this family appears in the species Chomatobius bakeri. The minimum number of legs recorded in this family appears in the species Garriscaphus oreines, This family contains these genera:
Steneurytion is a genus of centipedes in the family Geophilidae. It was first described by Austrian myriapodologist Carl Attems in 1909.
Pachymerinus is a genus of centipedes in the family Geophilidae. It was described by Italian entomologist Filippo Silvestri in 1905. Centipedes in this genus feature elongate heads, elongate forcipules with denticles, scattered coxal pores, and few sternal pores, if any; the intermediate part of the labrum is narrow and has no denticles. These centipedes range from about 3 cm to 8 cm in length, have 47 to 81 pairs of legs, and are found in Chile and southeast Australia. The Australian species Pachymerinus froggatti is notable for its relatively small size, measuring only 28 mm in length. The larger Chilean species P. porteri measures 46 mm in length but can have as few as 47 leg pairs, the minimum number recorded in this genus. The Chilean species P. pluripes measures only 32 mm in length but can have 79 or 81 leg pairs, the maximum number recorded in this genus. The Chilean species P. canaliculatus is known from a female specimen with 75 leg pairs and is notable for its large size, measuring 75 mm in length.
Ribautia is a genus of centipedes in the family Geophilidae. It was described by French myriapodologist Henry Wilfred Brolemann in 1909. Centipedes in this genus are found in South America, tropical Africa, Madagascar, the Arabian peninsula, Australia, New Zealand, and Melanesia.
Tasmanophilus is a genus of two species of centipedes, in the family Zelanophilidae. It was described by American biologist Ralph Vary Chamberlin in 1920. Centipedes in this genus are found in Australia and New Zealand.
Pachymerellus is a genus of two species of centipedes, in the family Geophilidae. It was described by American biologist Ralph Vary Chamberlin in 1920. The smaller Mexican species, Pachymerellus dentifer, measures only 16 mm in length and has only 43 pairs of legs, whereas the larger species, P. zygethus, measures 33 mm in length and can have from 47 to 65 leg pairs.
Tuoba is a genus of 17 species of centipedes, in the family Geophilidae. It was described by American biologist Ralph Vary Chamberlin in 1920.
Zelanophilus is a genus of three species of centipedes, in the family Zelanophilidae. This genus was described by American biologist Ralph Vary Chamberlin in 1920. Centipedes in this genus are found in Australia and New Zealand.
Mecistocephalus is a genus of centipedes in the family Mecistocephalidae. It was described by British entomologist George Newport in 1843.
Australoschendyla is a genus of centipedes in the family Schendylidae. It was described by R. E. Jones in 1996. Centipedes in this genus feature claws on the second maxillae fringed by a single row of filaments, short forcipules, subcircular sternal pore-fields, one or two pores on each coxopleuron, and ultimate legs without claws. These centipedes range from 1 cm to 2 cm in length, have 41 to 47 pairs of legs, and are found in west Australia.
Australobius scabrior is a species of centipede in the Lithobiidae family. It was first described in 1920 by American biologist Ralph Vary Chamberlin.
Cryptops lamprethus is a species of centipede in the Cryptopidae family. It is endemic to New Zealand. It was first described in 1920 by American biologist Ralph Vary Chamberlin.
Maoriella is a genus of centipedes in the family Geophilidae. It was described by Austrian myriapodologist Carl Attems in 1903. Species in this genus are found in New Zealand, Australia, and Tahiti.
Maoriella zelanica is a species of centipede in the Geophilidae family. It is endemic to New Zealand. It was first described in 1920 by American biologist Ralph Vary Chamberlin.
Cryptops sulciceps is a species of centipede in the Cryptopidae family. It was described in 1920 by American myriapodologist Ralph Vary Chamberlin.
Gonibregmatus is a genus of centipedes in the family Gonibregmatidae. It was described by British entomologist George Newport in 1843.
Pectiniunguis is a genus of centipedes in the family Schendylidae. It was described by American naturalist Charles Harvey Bollman in 1889. Centipedes in this genus feature second maxillae with claws fringed by two rows of filaments, transversally elliptical sternal pore-fields on almost all trunk segments, two pores on each coxopleuron, and ultimate legs without claws. These centipedes range from 16 mm to 67 mm in length, have 35 to 73 pairs of legs, and are found in the tropical and subtropical regions of the Americas, Fiji, and west Africa. The African species Pectiniunguis minutus is notable not only for being the smallest in this genus but also for having as few as 35 leg pairs, the minimum number in this genus. The Brazilian species P. ducalis is notable not only for being the largest in this genus but also for having as many as 73 leg pairs, the maximum number in this genus.
Marsikomerus is a genus of centipedes in the family Schendylidae. It was described by Austrian myriapodologist Carl Attems in 1938. Species in this genus are found in Mexico and in the United States.
Nesomerium is a monotypic genus of centipedes in the family Geophilidae. It was described in 1953 by American myriapodologist Ralph Vary Chamberlin. The sole species is Nesomerium hawaiiense Chamberlin, 1953. Since the original description of this species based on a single specimen, no other specimens have been referred to this species or this genus, and some authorities express doubts about the validity of these taxa and their placement in the family Geophilidae.
Steneurytion dux is a species of centipede in the Geophilidae family. It was described in 1920 by American myriapodologist Ralph Vary Chamberlin. This species can reach 44 mm in length and has 49 to 53 pairs of legs.
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