Table 5 in A new species of Tortanus (Atortus) (Copepoda, Calanoida, Tortanidae) from Minicoy Island, southeastern Arabian Sea

Table 5. Differential diagnosis of the male T. minicoyensis sp. nov. from all other species of the subgenus Atortus from Indian Ocean.
SpeciesSerrated ridge of right antennuleRight leg 5 coxaRight leg 5 basisLeft leg 5 subdistal setaProduced proximally overBearing triangular shapedT. minicoyensis sp. nov.one-third of segment XIX and the ridge slightly raised from the surface plane of the segmentSemitrapezoid with a beak-shaped medial process (Figure 5E)medial process with depression on distomedial margin and fused at the distal side of its baseStrongly curved along hemispherical tip with the granular surface (Figures 5F, 5G)(Figures 5B, 5C)(Figure 5E)Semicircular and ocarina-shaped medial processT. andamanensisProduced proximally over one-third of segment XIX (Nishida et al., 2015, fig. 4D)Semitrapezoid with semispherical medial process (Nishida et al., 2015, figs 4F, 4G)with depression on distomedial margin and with the small rounded process at the distal sideBlunt distal seta (Nishida et al., 2015, figs. 4F, 4H)of its base (Nishida et al.,2015, figs. 4F, 4G)T. sigmoidesSigmoid shape and produced proximally to the middle of segment XIX (Nishida et al., 2015, fig. 5D)Semicircular with the small bilobed medial process (Nishida et al., 2015, figs. 5F, 5G)Semicircular with the fingerlike medial process (Nishida et al., 2015, figs. 5F, 5G)Short subdistal seta (Nishida et al., 2015, figs. 5F, 5H)Basis massive, taperingT. magnonyxNot produced over the segment XIX (Ohtsuka and Conway, 2005, fig. 3C)Coxa unarmed (Ohtsuka and Conway, 2005, figs. 3D–3F)proximally, with triangular process bearing two spiniform setae on (Ohtsuka and Conway,Terminal seta serrated along inner margin (Ohtsuka and Conway, 2005; figs. 3D, 3H)2005, figs. 3D–3F)T. insularisMassive basis, bearing Unarmed bearing 3 acutely Pointed tip with serrated Not produced over the large inner bilobed process pointed prominences of seta (Ohtsuka and segment XIX (Ohtsuka at midlength (Ohtsuka and unequal size (Ohtsuka and Conway, 2003, figs. 3E, and Conway, 2003, fig. 3D) Conway, 2003, Conway, 2003, fig. 3G) 3H) figs. 3E, 3G)T. nishidaiSerrated ridge on segment XX extending almost along anterior margin of the segment (Ohtsuka et al., 2000, fig. 3D)Coxa produced medially into rectangular process (Ohtsuka et al., 2000, figs. 3E, 3H)Basis constricted proximally bearing minute seta at midlength on posterior surface (Ohtsuka et al., 2000; figs. 3E, 3H)Spiniform terminal seta (Ohtsuka et al., 2000, figs. 3E–3G)T. tropicusProduced completely over the segment XIX (Sewell, 1932, fig. 131f)Without any process (Sewell, 1932, fig. 131g)Small rounded process (Sewell, 1932, fig. 131g)Not clear in the description (Sewell, 1932, fig. 131g)T. recticaudaSerrated ridge on segment XX slightly extended over segment XIX (Bowman, 1986, fig. 1E)Coxa of leg 5 truncate with Basis with bilobed process uncinate corner (Bowman, at midlength (Bowman, 1986, figs. 1G–1J) 1986, fig. 1G–1J)Long spine with denticulated margin (Bowman, 1986, figs. 1G, 1H)