Meiodorvillea minuta (Hartman, 1965)

Bonaldo, Rafael de Oliveira, Steiner, Tatiana Menchini & Amaral, Antônia Cecília Zacagnini, 2022, Revision of Meiodorvillea Jumars, 1974 (Annelida: Dorvilleidae) including descriptions of three new species from the Southwestern Atlantic Ocean, PLoS ONE (e 0264081) 1974 (3), pp. 1-27 : 4

Meiodorvillea minuta (Hartman, 1965)

( Figs 1–6 , Table 1 )

Protodorvillea minuta Hartman, 1965 [ 13]: 125–127, plate 23

Figures

Fig 1. Meiodorvillea minuta (Hartman, 1965), neotype (LACM-AHF Poly 12561). (A) complete specimen, dorsal view; (B,C) anterior region, dorsal view; (D) parapodium 4, anterior view; (E) parapodium 12, anterior view; (F) capillary chaeta; (G) furcate chaeta; (H) compound chaetae.Dash lines represent broken chaeta. Abbreviations: an = antenna; dc = dorsal cirrus; pa = palp; vc = ventral cirrus. Scale bars: (A) = 0.5 mm; (B) = 80 μm; (C) = 50 μm; (D) = 20 μm; (E) = 40 μm; (F,G,H) = 12.5 μm. https://doi.org/10.1371/journal.pone.0264081.g001

Fig 2. Meiodorvillea minuta (Hartman, 1965), ZUEC-POL. (A) complete specimen, dorsal view; (B) anterior region, dorsal view; (C) parapodia from anterior region, dorsal view; (D) pygidium, ventral view. Abbreviations: an = antenna; dc = dorsal cirrus; dpc = dorsal pygidial cirrus; fc = furcate chaeta; pa = palp; vpc = ventral pygidial cirrus. Scales: (A) = 200 μm; (B,C) = 62.5 μm; (D) = 31.25 μm. https://doi.org/10.1371/journal.pone.0264081.g002

Fig 3. Meiodorvillea minuta (Hartman, 1965), ZUEL-POL. (A,B) anterior region, dorsal view; (C,D) pygidium, lateral view. Abbreviations: an = antenna; dpc = dorsal pygidial cirrus; pa = palp; vpc = ventral pygidial cirrus. Scales: (A) = 20 μm; (B) = 25 μm; (C) = 10 μm; (D) = 15.6 μm. https://doi.org/10.1371/journal.pone.0264081.g003

Fig 4. Meiodorvillea minuta (Hartman, 1965), ZUEC-POL. (A,B) parapodia from anterior region; (C,D) parapodia from posterior region; all anterior view. Abbreviations: dc = dorsal cirrus; vc = ventral cirrus. Scales: (A,B) = 10 μm; (C, D) = 15.6 μm. https://doi.org/10.1371/journal.pone.0264081.g004

Fig 5. Meiodorvillea minuta (Hartman, 1965), ZUEC-POL. (A) furcate chaeta from anterior region; (B) furcate chaeta from posterior region; (C,E) compound chaetae; (D) morphology of furcate chaeta, from chaetigers 2, 5, and 10; (F) cultriform chaeta. Scales:(A,B) = 5 μm; (C) = 10 μm; (D,E,F) = 6.25 μm. https://doi.org/10.1371/journal.pone.0264081.g005

Fig 6. Meiodorvillea minuta (Hartman, 1965), ZUEC-POL. (A) mandibles, dorsal view; (B) maxillae, dorsal view. Abbreviations: md = mandibles; mp = maxillary plates; mf = main fang; cls = carrier-like structure.Scales: (A,B) = 10 μm. https://doi.org/10.1371/journal.pone.0264081.g006