The genus Milnesium (Eutardigrada, Apochela, Milnesiidae) in Argentina: description of three new species and key to the species of South America Author Rocha, Alejandra M. 37D7AFFE-F588-478D-91AE-6E8BEA8754F9 National University of La Pampa, Faculty of Exact and Natural Sciences, Uruguay 151, CP 6300, Santa Rosa, La Pampa, Argentina. rochaale64@hotmail.com Author González-Reyes, Andrea X. 4688D9CD-0D48-4928-A0DA-EF4B4C13A31F National University of Salta, Faculty of Natural Sciences, Bolivia 5150, CP 4400, Salta, Argentina. axgonzalezr@yahoo.com.ar Author Ostertag, Belén 7E8091DC-BFEA-42FE-AAE6-F5A2DB49958F National Scientific and Technical Research Council (CONICET), Uruguay 151, CP 6300, Santa Rosa, La Pampa, Argentina. belenostertag@gmail.com Author Lisi, Oscar 1EE34EFB-1742-49A8-BC11-109B67E2BEA3 University of Catania, Department of Biological, Geological and Environmental Sciences, Section of Animal Biology, Androne 81, 95124 Catania, Italy. olisi@unict.it text European Journal of Taxonomy 2022 2022-06-03 822 1 1 54 http://zoobank.org/522fd009-b4c9-4a80-871e-883e2ebe09c8 journal article 66857 10.5852/ejt.2022.822.1807 59945c64-de21-4e6e-95ac-25d8e13a0e93 2118-9773 6619884 522FD009-B4C9-4A80-871E-883E2EBE09C8

Table 7. Statistically significant differences (through one-side Student t -tests) of overlapping pt ranges of claw heights between Milnesium irenae sp. nov. and the similar species.

Species Character	M. irenae sp. nov.	M. variefidum
Claw/Leg I
External primary branch	38.7–47.1 (43.1)	33.7–44.7 (40.0) t21 = 2.20, p <0.05
External secondary branch	34.1–42.6 (38.0)	27.7–35.8 (31.8) t 23 = 6.00, p <0.001
Internal secondary branch	32.7–41.3 (36.2)	28.2–35.4 (31.7) t 22 = 4.50, p <0.001
Claw/Leg II
External primary branch	43.0–52.9 (48.2)	38.0–50.9 (43.7) t25 = 3.56, p <0.001
External secondary branch	35.4–44.7 (39.5)	27.6–39.7 (33.8) t 23 = 4.29, p <0.001
Internal primary branch	40.7–50.8 (45.9)	33.9–45.6 (40.6) t21 = 3.93, p <0.001
Internal secondary branch	33.0–43.0 (37.8)	25.9–38.1 (32.0) t 22 = 4.64, p <0.001
Claw/Leg III
External primary branch	44.8–55.9 (50.9)	38.8–50.3 (44.4) t 24 = 4.60, p <0.001
External secondary branch	35.7–44.9 (40.3)	25.9–39.0 (33.3) t23 = 5.68, p <0.001
Internal primary branch	42.2–52.3 (47.7)	34.2–47.2 (41.0) t 23 = 4.39, p <0.001
Internal secondary branch	34.2–44.4 (38.3)	25.5–37.2 (32.0) t23 = 4.93, p <0.001
Claw/Leg IV
Anterior primary branch	55.1–64.2 (59.8)	46.6–61.0 (52.1) t 22 = 3.28, p <0,01
Anterior secondary branch	39.8–49.0 (43.3)	30.6–42.2 (35.2) t 24 = 4.69, p <0.001
Posterior primary branch	59.4–68.4 (63.6)	35.9–62.4 (53.1) t 22 = 4.53, p <0.001
Posterior secondary branch	40.6–50.4 (45.5)	27.5–41.0 (36.2) t 23 = 7.51, p <0.001