Hoffmaneumatidae

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Hoffmaneumatidae
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Myriapoda
Class: Diplopoda
Order: Chordeumatida
Family: Hoffmaneumatidae

Hoffmaneumatidae is a family of millipedes belonging to the order Chordeumatida. [1] This family includes two genera, one (Hoffmaneuma) found in the Russian Far East and the other (Japanoparvus) found in Japan. [2] Millipedes in this family range from 4 mm to 6 mm in length. [2] Adult millipedes in this family have only 28 segments (counting the collum as the first segment and the telson as the last), not the 30 segments usually found in this order. [3] [2] Adult males in this family feature a reduced leg pair 10 in addition to the two pairs (pairs 8 and 9) normally modified into gonopods in this order. [2] In the adult male of the species Hoffmaneuma exiguum, for example, the gonopod complex derives from all three leg pairs rather than from just the usual two. [4]

Genera: [1]

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Speophilosomatidae is a family of millipedes belonging to the order Chordeumatida. These millipedes are found in Japan and range from 4 mm to 6 mm in length. Adult millipedes in this family are notable for being among the few in this order with only 26 segments instead of the 30 usually found in chordeumatidans. The adult males in this family are also notable for involving three leg pairs in the gonopod complex rather than the two pairs typically modified into gonopods in this order.

Haasiidae is a family of millipedes belonging to the order Chordeumatida. These millipedes range from 4.5 mm to 12 mm in length and are found in Europe. Adult millipedes in this family have 28 or 30 segments.

Apterouridae is a family of millipedes belonging to the order Chordeumatida. Adult millipedes in this family have 30 segments.

Heterochordeumatidae is a family of millipedes belonging to the order Chordeumatida. Adult millipedes in this family have 30 or 32 segments.

Adritylidae is a family of millipedes belonging to the order Chordeumatida. Adult millipedes in this family have 30 segments.

Golovatchiidae is a family of millipedes belonging to the order Chordeumatida. This family contains a single species, Golovatchia magda. This species ranges from 15 mm to 17 mm in length and is found in the Russian Far East. Adult millipedes of this species have 30 segments. In the adult male of this species, the gonopod complex involves three leg pairs rather than just the two that are usually modified into gonopods this order.

Attemsiidae is a family of millipedes belonging to the order Chordeumatida. Adult millipedes in this family have 30 segments.

Trachygonidae is a family of millipedes belonging to the order Chordeumatida. Adult millipedes in this family have 28 or 30 segments.

Lusitaniosomatidae is a family of millipedes belonging to the order Chordeumatida. Adult millipedes in this family have 30 segments.

Kashmireumatidae is a small family of millipedes belonging to the order Chordeumatida. These millipedes range from 5 mm to 14 mm in length and are found in East Asia. Adult millipedes in this family have only 26 or 28 segments rather than the 30 segments usually found in this order. In the species Vieteuma topali, adults have 26 segments, whereas in all other species in this family, adults have 28 segments. In some species, the second leg pair in the adult female is vestigial, but all other species in this family, the adult female has a normal legs.

Opisthocheiridae is a family of millipedes belonging to the order Chordeumatida. These millipedes range from 5 mm to 16 mm in length and are found from Belgium to Morocco. Adult millipedes in this family have 26 or 30 segments. This family includes the species Opisthocheiron canayerensis, one of the few species in this order with only 26 segments.

Glomeridellidae is a family of millipedes belonging to the order Glomerida. The adult males in this family have two pairs of telopods rather than the single pair found in other families in this order.

References

  1. 1 2 "Hoffmaneumatidae". www.gbif.org. Retrieved 6 June 2021.
  2. 1 2 3 4 Enghoff, Henrik; Golovatch, Sergei; Short, Megan; Stoev, Pavel; Wesener, Thomas (2015-01-01). "Diplopoda — taxonomic overview". Treatise on Zoology - Anatomy, Taxonomy, Biology. The Myriapoda, Volume 2: 363–453. doi:10.1163/9789004188273_017. ISBN   9789004188273.
  3. Enghoff, Henrik; Dohle, Wolfgang; Blower, J. Gordon (1993). "Anamorphosis in Millipedes (Diplopoda) — The Present State of Knowledge with Some Developmental and Phylogenetic Considerations". Zoological Journal of the Linnean Society. 109 (2): 103–234. doi:10.1111/j.1096-3642.1993.tb00305.x.
  4. Shear, William A. (1992). "Golovatchia, new genus, and Golovatchiidae, from the Far East of the Russian Republic, with a comment on Hoffmaneumatidae (Diplopoda: Chordeumatidae)" (PDF). Myriapodologica. 3 (4): 25–36.