The Myriapoda of North America

Wood, Horatio C.

doi:10.2307/1005211

Cited by 13 publications

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“…This material was collected by the explorer and naturalist Robert Kennicott between 1859 and 1862 during his expedition to the Canadian north. No additional myriapod species had been recorded from Canada by 1865 as Wood (1865) listed only the three aforementioned species in his treatise on the Myriapoda of North America. Brodie and White (1883) provided the first checklist of myriapods of Canada and listed five centipede and five millipede species from the country.…”

Section: Introductionmentioning

confidence: 99%

Myriapoda of Canada

Langor¹,

deWaard²,

Snyder³

2019

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The currently documented fauna of described species of myriapods in Canada includes 54 Chilopoda, 66 Diplopoda, 23 Pauropoda, and two Symphyla, representing increases of 24, 23, 23, and one species, respectively, since 1979. Of the 145 myriapod species currently documented, 40 species are not native to Canada. The myriapods have not been well documented with DNA barcodes and no barcodes are available for Pauropoda. It is conservatively estimated that at least 93 additional myriapods species will be discovered in Canada: Chilopoda (40), Diplopoda (29), Pauropoda (17), and Symphyla (seven). In general, there is a serious dearth of knowledge about myriapods in Canada, and systematics research and surveys continue to be needed to help document the diversity and distribution of these groups in the country.

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Section: Introductionmentioning

confidence: 99%

Myriapoda of Canada

Langor¹,

deWaard²,

Snyder³

2019

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“…Furthermore, our morphometric analyses of representative specimens of both species did not confirm any significant difference in the elongation of the antennae in respect to the head, nor in the elongation of the articles (Table 3). Also, the body colour was described as slightly different between the species (Chamberlin, 1904, 1912), but it is expected to be obviously affected by the condition of preservation and the treatment of the specimens, as acknowledged for D. limatus by Wood (1862, 1865).…”

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“…Main references for morphology: Wood, 1862: 42 (original description); Wood, 1865: 177 (diagnosis); Meinert, 1886b: 214 (redescription as M. breviceps ); Chamberlin, 1912: 653 (redescription); Attems, 1929: 147 (diagnosis and key).…”

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confidence: 99%

“…Notes on taxonomy: Originally included in the genus Mecistocephalus Newport, 1843 (Wood, 1862), the species was separated in a distinct genus Dicellophilus by Cook (1896a), but this generic assignment has only been adopted universally since the 1950s. The name was occasionally misspelled as lineatus (Wood, 1865: plate I; Saussure & Humbert, 1872; Verhoeff, 1902–1925) or limitatus (Kevan, 1983).…”

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“…The syntypes of M. limatus were originally deposited in the Smithsonian Institution, Washington, DC (Wood, 1862, 1865), but there is no evidence that they are still there (D. De Roche, pers. comm.…”

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Morphology and phylogeny of Dicellophilus, a centipede genus with a highly disjunct distribution (Chilopoda: Mecistocephalidae)

Bonato

Dányi

Minelli

2010

Zoological Journal of the Linnean Society

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The centipede genus Dicellophilus Cook, 1896 (Chilopoda: Geophilomorpha: Mecistocephalidae) has been revised by means of a comparative examination of representative specimens of all the species: morphological variation has been documented by means of both light and scanning electronic microscopy, the geographical distribution has been reassessed and updated based on published and new records, and the phyletic relations between the species have been analysed based on morphological evidence. Dicellophilus is confirmed as a highly distinct lineage, supported by synapomorphies in the labrum and in the pattern of coxal organs. Four species are morphologically recognized, each of them occurring in one of three limited, highly disjunct areas in a restricted boreal temperate belt: Dicellophilus carniolensis (C.L. Koch, 1847) is limited to central Europe (central-eastern Alps, Dinarids, Carpathians, and Dobrogea), Dicellophilus pulcher (Kishida, 1928) occurs in Japan (Honshu), and Dicellophilus anomalus (Chamberlin, 1904) and Dicellophilus limatus (Wood, 1862) both occur in the south-western part of North America (California and Oregon). High support has been found for the following phyletic relationships: (D. carniolensis (D. pulcher (D. anomalus + D. limatus))). Dicellophilus carniolensis is strongly distinct in some autapomorphic traits, including enlarged clypeus and fewer mandibular lamellae, whereas the sister species D. anomalus and D. limatus share some derived features, including an elongated head and associated appendages, longer antennal setae, and stronger forcipular tubercles. The peculiar geographical distribution of Dicellophilus and the historical scenario suggested by the phylogeny are very unusual in respect to the biogeographical patterns known in all other major groups of terrestrial animals.

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Studies of parajulid diplopods. I. The development of the external sexual structures of Parajulus impressus say(8)

Hefner

1929

Journal of Morphology

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FOUR PLATES (TWENTY-FIVE FIGUKES) AUTHOE'S ABSTRACTA description of the gross embryology of the sex apparatus of a common diplopod, the corn millipede. The life-cycle of this animal involves eleven instars extending over a perlod of three years.I n the male the true first legs are shed a t the ninth ecdysis and the large clasping appendages are substituted through the last three instars. I n the region of the second body somite the fused coxal plate and the penes are developed at the final molt: the second appendages are reduced at this time. The greatest changes occur in the region of the seventh somite where the legs are shed about the eighth ecdysis and the gonopods developed through the rimaining instars. It is evident that these gonopods arise as a modification of the sternites of the seventh somite. The structures at the mouth of the oviducts are developed from the surrounding tissues and the modifled sternites of the reduced second legs. These changes are in progress as early as the seventh instar, but the greatest changes occur a t the final ecdysis.

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The Myriapoda of North America

Cited by 13 publications

References 0 publications

Myriapoda of Canada

Myriapoda of Canada

Morphology and phylogeny of Dicellophilus, a centipede genus with a highly disjunct distribution (Chilopoda: Mecistocephalidae)

Studies of parajulid diplopods. I. The development of the external sexual structures of Parajulus impressus say(8)

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