Sisubiotus hakaiensis sp. nov. (Tardigrada, Macrobiotidae), a new tardigrade species from Calvert Island (British Columbia, Canada) Author Vecchi, Matteo 94FA8A73-9524-4FFE-93FC-DAADCE33C2A3 Department of Biological and Environmental Science, University of Jyväskylä, PO Box 35, FI- 40014 Jyväskylä, Finland. matteo.vecchi15@gmail.com;matteo.m.vecchi@jyu.fi Author Choong, Henry FD15D310-EE1D-49F2-A46E-DE5D91463AFC Invertebrate Zoology Department, Royal BC Museum, 675 Belleville Street, Victoria, BC, V 8 W 9 W 2, Canada. HChoong@royalbcmuseum.bc.ca Author Calhim, Sara B309F420-F7F9-4708-B59E-66880642F93E Department of Biological and Environmental Science, University of Jyväskylä, PO Box 35, FI- 40014 Jyväskylä, Finland. sara.calhim@jyu.fi text European Journal of Taxonomy 2022 2022-06-10 823 1 64 81 http://zoobank.org/7a993025-6c28-4b38-98c7-683cd96e7885 journal article 71619 10.5852/ejt.2022.823.1815 cc64f0d3-5fd9-4d7a-88ac-47de8ff3dd0d 2118-9773 6639278 7A993025-6C28-4B38-98C7-683CD96E7885

Table 2. Measurements (in μm) of selected morphological structures of the animals of Sisubiotus hakaiensis sp. nov. mounted in Hoyer’s medium.Abbreviations:N = number of eggs/structures measured; Range = the smallest and the largest structure among all measured specimens; SD = standard deviation.

Character	N	Range		Mean		SD		Holotype
		µm	pt	µm	pt	µm	pt	µm	pt
Body length	25	387–685	707–1070	573	948	72	87	650	1034
Buccopharyngeal tube Buccal tube length	30	35.7–73.3	–	58.3	–	8.2	–	62.9	–
Stylet support insertion point	30	30.1–61.7	78.9–85.4	48.5	83.2	7.1	1.4	52.6	83.6
Buccal tube external width	25	5.7–14.4	15.2–21.2	10.6	18.4	2.1	1.4	11.9	19.0
Buccal tube internal width	25	3.7–11.5	10.3–17.7	8.3	14.4	1.7	1.5	10.0	15.8
Ventral lamina length	25	25.5–51.7	65.2–75.1	40.9	70.7	6.2	2.6	42.2	67.1
Placoid lengths
Macroplacoid 1	30	7.1–21.0	17.7–36.4	16.0	27.3	3.5	4.0	17.7	28.1
Macroplacoid 2	30	4.5–15.5	12.7–21.2	10.2	17.3	2.2	1.9	11.6	18.4
Microplacoid	30	3.1–7.6	7.3–11.4	5.5	9.4	1.0	1.0	5.7	9.1
Macroplacoid row	30	13.5–37.0	34.6–57.2	29.0	49.3	6.0	5.4	32.1	51.0
Placoid row	30	17.9–46.1	46.0–72.5	36.9	62.7	7.2	6.1	41.8	66.4
Claw 1 heights
External primary branch	19	7.4–15.5	19.4–23.2	12.8	21.5	1.7	1.0	13.7	21.8
External secondary branch	19	5.4–12.0	14.9–18.0	10.0	16.8	1.4	0.9	10.3	16.4
Internal primary branch	18	9.6–13.7	17.1–21.9	12.3	20.3	1.1	1.3	13.7	21.8
Internal secondary branch	17	8.4–10.9	12.6–17.6	9.8	16.1	0.7	1.3	10.9	17.4
Claw 2 heights
External primary branch	22	6.9–14.5	19.2–24.2	12.9	21.5	1.6	1.6	14.2	22.5
External secondary branch	22	4.5–12.2	12.5–18.9	9.8	16.3	1.6	1.6	11.5	18.3
Internal primary branch	22	5.6–14.4	15.6–23.0	12.2	20.3	1.8	1.9	14.4	22.9
Internal secondary branch	20	8.8–11.3	14.5–17.9	9.9	16.4	0.7	1.0	11.0	17.4
Claw 3 heights
External primary branch	18	8.1–15.2	18.9–23.9	13.0	22.0	1.6	1.2	14.2	22.6
External secondary branch	16	6.7–12.6	15.5–18.7	10.3	17.5	1.4	1.0	11.3	17.9
Internal primary branch	19	7.6–14.6	17.8–23.1	12.6	21.3	1.6	1.5	14.5	23.0
Internal secondary branch	18	5.3–12.0	13.5–18.8	9.9	16.9	1.4	1.4	11.6	18.4
Claw 4 heights
Anterior primary branch	19	9.8–20.1	22.0–37.3	17.1	29.6	2.4	3.5	20.1	31.9
Anterior secondary branch	19	6.3–14.5	15.7–26.8	12.2	20.8	1.9	2.7	14.5	23.1
Posterior primary branch	20	8.8–23.6	21.5–43.1	16.1	27.7	2.8	4.7	19.4	30.8
Posterior secondary branch	18	6.1–13.8	14.6–23.0	11.3	19.3	1.8	2.4	13.4	21.3