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Schendylidae

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Schendylidae
Ballophilus sp.
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Myriapoda
Class: Chilopoda
Order: Geophilomorpha
Family: Schendylidae
Cook, 1896

Schendylidae is a family of soil centipedes in the superfamily Himantarioidea and the order Geophilomorpha.[1][2] These centipedes are found in the Americas, the Palearctic region, Africa, Madagascar, Australia, and southeast Asia, and also on some Pacific islands.[3] This family was first proposed by the American biologist Orator F. Cook in 1896.[4]

Taxonomy

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In 2014, a phylogenetic analysis based on morphological and molecular data found this family to be paraphyletic with respect to the family Ballophilidae.[2] Authorities now deem Ballophilidae to be a synonym of Schendylidae.[5] The family Schendylidae now includes at least 47 genera and 310 described species.[5][6]

Description

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Centipedes in this family feature second maxillae with claws that are often fringed by small spines or rows of filaments. Sternal pores are usually present, most often in a single field. Each coxopleuron most often has only one or two pores.[3]

Compared to most other families in the suborder Adesmata, this family features a modest number of leg-bearing segments and limited variation in this number within each species (usually no more than three or four contiguous odd numbers).[7] This family includes the two species that feature the fewest legs (27 pairs) in the order Geophilomorpha: males in the species Schendylops ramirezi have only 27 pairs of legs, while females have 29, and males in the species S. oligopus have 27 or 29 (usually 29), while females have 31.[8] Furthermore, S. ramirezi is one of only two species in this order in which females have only 29 leg pairs (the other species, Dinogeophilus oligopodus, is also in this family[9][10] and has 29 in each sex).[8] Several other species in this family are known from specimens with notably few leg pairs in each sex, including Schendlya antici (29 in males and 31 in females),[11] Escaryus cryptorobius (as few as 31 in males and 33 in females),[12] and Schendyla walachica (as few as 33 in each sex).[11] Among all the other families in the order Geophilomorpha, only the family Geophilidae (including Aphilodontidae, Dignathodontidae, Linotaeniidae, and Macronicophilidae) includes centipedes with so few legs.[13][3]

Many species in the family Schendylidae are notable for their small sizes. The most extreme examples are the two species in the South American genus Dinogeophilus, which range from 4.5 to 5.5 mm in length. These species are the smallest not only in the order Geophilomorpha but also among all epimorphic centipedes.[9]

Genera

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References

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  1. ^ "Schendylidae Family Information". BugGuide.net. Retrieved 2018-02-23.
  2. ^ a b Bonato, Lucio (2014). "Phylogeny of Geophilomorpha (Chilopoda) inferred from new morphological and molecular evidence". Cladistics. The International Journal of the Willi Hennig Society. 30 (5): 485–507. doi:10.1111/cla.12060. PMID 34794246. S2CID 86204188.
  3. ^ a b c Bonato, Lucio; Edgecombe, Gregory D.; Zapparoli, Marzio (2011). "Chilopoda – Taxonomic overview". In Minelli, Alessandro (ed.). The Myriapoda. Volume 1. Leiden: Brill. pp. 363–443. ISBN 978-90-04-18826-6. OCLC 812207443.{{cite book}}: CS1 maint: date and year (link)
  4. ^ Cook, O. F. (1896). "An arrangement of the Geophilidæ, a family of Chilopoda". Proceedings of the United States National Museum. 18 (1039): 63–75 [70]. doi:10.5479/si.00963801.18-1039.63.
  5. ^ a b "Schendylidae Report". Integrated Taxonomic Information System. Retrieved 2018-02-23.
  6. ^ "Schendylidae Overview". Encyclopedia of Life. Retrieved 2018-02-23.
  7. ^ Minelli, Alessandro; Bortoletto, Stefano (1988-04-01). "Myriapod metamerism and arthropod segmentation". Biological Journal of the Linnean Society. 33 (4): 323–343. doi:10.1111/j.1095-8312.1988.tb00448.x. ISSN 0024-4066.
  8. ^ a b Pereira, Luis Alberto (2013-01-01). "Discovery of a second geophilomorph species (Myriapoda: Chilopoda) having twenty-seven leg-bearing segments, the lowest number recorded up to the present in the centipede order Geophilomorpha". Papéis Avulsos de Zoologia. 53 (13): 163–185. doi:10.1590/S0031-10492013001300001. hdl:11336/3449. ISSN 1807-0205.
  9. ^ a b Bonato, Lucio; Minelli, Alessandro; Drago, Leandro; Pereira, Luis Alberto (2015-09-25). "The phylogenetic position of Dinogeophilus and a new evolutionary framework for the smallest epimorphic centipedes (Chilopoda: Epimorpha)". Contributions to Zoology. 84 (3): 237–253. doi:10.1163/18759866-08403004. hdl:11577/3146565. ISSN 1875-9866.
  10. ^ Bonato, L.; Chagas Junior, A.; Edgecombe, G.D.; Lewis, J.G.E.; Minelli, A.; Pereira, L.A.; Shelley, R.M.; Stoev, P.; Zapparoli, M. (2016). "Dinogeophilus oligopodus Pereira, 1984". ChiloBase 2.0 - A World Catalogue of Centipedes (Chilopoda). Retrieved 2024-01-20.
  11. ^ a b Stojanović, Dalibor Z.; šEvić, Mirko; Makarov, Slobodan E. (2024-03-07). "A new dwarf schendylid centipede (Chilopoda: Geophilomorpha: Schendylidae) with a low number of legs from Serbia, Balkan Peninsula". Zootaxa. 5419 (3): 401–418. doi:10.11646/zootaxa.5419.3.5. ISSN 1175-5334.
  12. ^ Pereira, Luis A.; Hoffman, Richard L. (1993). "The American species of Escaryus, a genus of holoarctic centipeds (Geophilomorpha: Schendylidae)" (PDF). Jeffersoniana. 3: 1–72.
  13. ^ Bonato, Lucio (2014). "Phylogeny of Geophilomorpha (Chilopoda) inferred from new morphological and molecular evidence". Cladistics. 30 (5): 485–507. doi:10.1111/cla.12060. PMID 34794246. S2CID 86204188.

Further reading

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  • Foddai, Donatella; Dallai, Romano (1995). Chilopoda, Diplopoda, Pauropoda, Symphyla. Calderini.
  • Capinera, John L., ed. (2008). Encyclopedia of Entomology. Springer. ISBN 978-1402062421.


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