Published April 20, 2021 | Version v1

Table 2 in Long distance dispersal and pseudo-cryptic species in Gastrotricha: first description of a new species (Chaetonotida, Chaetonotidae, Polymerurus) from an oceanic island with volcanic rocks

  • 1. Laboratory of Evolutionary Meiofaunal Organisms, Department of Animal Biology, Institute of Biology, University of Campinas, Monteiro Lobato, 255, CEP 13083 - 862, Campinas, SP, Brazil.

Description

Table 2 (continued on next page). Morphometric features of Polymerurus insularis sp. nov. All scale lengths for which the scale type is not specified are from Type 1 scales. Abbrevation: N = total number of measured adult specimens.

FeaturesRange (µm)Mean (µm)N
Total body length215–4083225
Body length (furcal rami excluded)139–3082225
Furcal rami length91.5–94.5932
Furcal rami + adhesive tubes length109–1171132
Adhesive tubes length16–2319.52
Furca base width26.5–27.5271
Number of furcal rami segments per side19–21201
Length of ornamentation bristles on the furcal rami segments4–863
Body width at head24–42324
Body width at medium length31–55404
Body width at furca base23–25244
Diameter of mouth ring8–13103
Number of cephalic lobes331
Number of head cilia tufts443
Length of first cilia tuft9–1210.51
Length of second cilia tuft11–19.5141
Cephalion length19–25233
Cephalion width20–36282
Lateral projections (lappets) length10–18143
Pleurae length12–15143
Hypostomium length13–17152
Pharynx length74741
Pharynx width at upper length19191
Pharynx width at medium length25251
Pharynx width at pharingeointestinal junction27271
Egg width30301
Protonephridia length1051051
Length of locomotory cilia5–8.571
Total number of longitudinal columns of scales42421
Number of scales in a single longitudinal column55551
Total number of horizontal rows of scales64641
Number of scales in a single horizontal row10101
Length of neck dorsolateral scales3.5–8.564
Length of middle trunk dorsal scales5.5–98.52
Length of middle trunk lateral scales6.5–118.52
Length of rear dorsolateral scales7.5–962
Length of rear triangular scale (Type 2)5–763
Length of small rounded scales with posterior spines (Type 3)4.54.51
Length of rear dorsal small scales (Type 4)2.5–531
Length of rear indented scales (Type 5)7–87.51
Length of neck ventral scales3.5–542
Length of middle trunk ventral scales4.54.51
Length of rear trunk ventral scales4–751
Length of keeled ventral scales (Type 6)9.5–10101
Length of small ventral elongated scales (Type 7)3.5–43.51
Length of small ventral round scales (Type 8)4.5–761
Length of head and neck dorsolateral spines2–137.52
Length of upper trunk dorsolateral spines8–1511.52
Length of middle trunk dorsolateral spines8.5–22.515.55
Length of rear trunk and furca base dorsolateral spines18–3325.55
Length of neck ventral spines5.5–7.56.51
Length of trunk ventral spines5.8–9.882
Length of rear ventral spines5.7–15101
Length of keels on Type 6 scales6–76.51

Notes

Published as part of Magpali, Letícia, Machado, Danilo R. P., Araújo, Thiago Q. & Garraffoni, André R. S., 2021, Long distance dispersal and pseudo-cryptic species in Gastrotricha: first description of a new species (Chaetonotida, Chaetonotidae, Polymerurus) from an oceanic island with volcanic rocks, pp. 71-72 in European Journal of Taxonomy 746 on page 71, DOI: 10.5852/ejt.2021.746.1319, http://zenodo.org/record/7401633

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