Montistrongylus karungi, Smales, 2012

Durette-Desset, Marie-Claude & Digiani, María Celina, 2023, Revision of the genera of Heligmonellidae (Nematoda, Heligmosomoidea), parasitic in Muridae from New Guinea, Parasite (Paris, France) 30 (63), pp. 1-34 : 13

3.3.1.3 Montistrongylus karungi ( Figs. 3I–3K )

3.3.1.3.1 Synlophe (based on sections from four worms, sex not specified). Sections analyzed herein are those within proximal part of body: male ( Fig. 2 /3I), and at midbody: male ( Fig. 4 /3J) and female (Fig. 12/3K). In all sections lateral cords illustrated and ridges numbered in Figures 4 /3 J and 12/3K.

In all sections ridges irregularly spaced and grouped into two sets (set 1, set 2) alternating with two ridge-free spaces (arrowheads).

Within proximal body: in Figure 3I (male), 13 ridges; ridge set 1 situated on dorsal side, made up of eight small ridges, similar in size, irregularly spaced and oriented perpendicularly to body surface; ridge set 2 situated on mid-ventral side, made up of five small ridges regularly spaced with slight decreasing gradient in size from left to right and oriented from right to left.

At midbody: in Figure 3J (male), 17 ridges; set 1 situated on left side, made up of 11 small ridges (8’ to 1’ and 1 to 3) similar in size, except ridges ventrally adjacent to left lateral cord (4’ and 5’), slightly larger; most ridges oriented perpendicularly to body surface; only ridges 5’ and 4’ oriented from right to left; ridge set 2 situated on mid-right side, made up of six small ridges (4 to 9), similar in size, regularly spaced, without clear orientation.

Figure 3K (female): 11 ridges; ridge set 1 situated on left-ventral quadrant, made up of five small ridges regularly spaced, ridges ventrally adjacent to lateral cord (3’, 2’) larger and oriented from right to left, other ridges (6’-4’) smaller and oriented perpendicularly to body surface; ridge set 2 situated mainly on right-dorsal quadrant, extending to both mid-dorsal and mid-right sides, made up of seven small ridges (1’ and 1 to 6); ridges 1’, 5 and 6 apparently oriented from right-ventral to left dorsal-quadrant, remaining ridges (1 to 4) apparently perpendicular to body surface.

3.3.1.3.2 Bursa (number of worms studied not specified; illustrated in [ 35]: Figs. 7 and 11 ). Figure 7 : dorsal ray and rays 8, dorsal view. Figure 11 : bursa spread out, dorsal view. From the original written description [ 35]: bursa slightly dissymmetrical with right lobe larger and pattern of type 2-3 in both lobes.

Figures

Figure 2. Genus Mawsonema Smales & Heinrich, 2010. Body sections. A–F’ Mawsonema mokwanense Smales & Heinrich, 2010. A, A’ within proximal body, male. B, C at midbody. B male, C female. D, E within distal body. D male, E female. F, F’ within proximal body, female. A–E synlophe of type I. F, F’ synlophe of type II. Source: A–F redrawn from [45]. A’, F’ modified figures: reversed on their frontal axes with respect to the originals. F’ axis of orientation reinterpreted as subfrontal.

Figure 3a. Montistrongylus Smales & Heinrich, 2010. Body sections. A–D’ Montistrongylus ingati Smales & Heinrich, 2010. A–B’ within proximal body. A male, B, B’ female. C–D’ at midbody. C male, D, D’ female. E–H’ Montistrongylus giluwensis Smales, 2011. E, F within proximal body. E male, F female. G–H’ at midbody. G, G’ male, H, H’ female. Sources: A, D redrawn from [45]; E–H redrawn from [33]. B’, D’, G’, H’ modified figures: B’ rotated ca. 75° counterclockwise with respect of the original. D’–H’ reinterpreted orientation of the axis (subfrontal). G’ reversed on its frontal axis then rotated 30° clockwise with respect to the original. H’ rotated ca. 10–20° counterclockwise with respect to the original.

Figure 4. Genus Pogonomystrongylus Smales, 2014. Body sections. A–D’ Pogonomystrongylus domaensis Smales, 2014. A–B’ within proximal body. A, A’ male, B, B’ female. C–D’ at midbody. C, C’ male, D, D’ female. Source: A–D redrawn from [36]. A’–D’, modified figures: A’–C’ reversed on their frontal axes with respect to the originals, then slightly rotated clockwise. D’ rotated 45° clockwise.

Figure 7. Genus Parvinema Smales, 2017. Midbody sections. A, B Parvinema bafunminense Smales, 2017. A male, B, B’ female. C, C’ Parvinema helgeni Smales, 2017, male. Source: A–C redrawn from [40]. B’, C’ modified figures with respect to the original: B’ numbering of ridges added. C’ reversed on its frontal axis, then rotated 30° clockwise.

Figure 11. Genus Paramelomystrongylus Smales, 2020. Body sections. A–D’ Paramelomystrongylus dessetae Smales, 2020. A, A’ within proximal body, female. B at midbody, male. C, C’ within distal part, female. D, D’ at midbody, female. A, B, C: Synlophe of type I. D: Synlophe of type II. Source: A–D redrawn from [43]. A’, C’, D’ modified sections: A’, C’ numbering of ridges. D’ rotation clockwise and numbering of ridges with respect to the original.