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Table 1.

Comparative measurements of diagnostic traits for males in Guerrerostrongylus Sutton and Durette-Desset, 1991. For G. marginalis the range is followed by measurements of the type. Values in parentheses include structures measured in three paratypes of G. gomesae. All measurements are in μm.

G. marginalis present work G. uruguayensis Sutton & Durette-Desset, 1991 G. gomesae Simões, dos Santos, Maldonado, 2012 G. ulysi Digiani, Notarnicola, Navone, 2012 G. zetta (Travassos, 1937) G. zetta paratypes (Simões et al. 2012) G. zetta Argentina (Digiani et al. 2012)
Males Range, holotype
Body length 4,156–6,741, 6,181 9,150 4,524–7,240 5,350–8,320 6,400 4,280–6,900 4,400–8,400
Maximum width 151–266, 195 275 150–210 130–180 150 80–180 140–290
No. of ridges in midbody synlophe 36–44 40–45 35–46 42–44 36–42 40–44
Cephalic vesicle
  Length 44–89, 65 60 40–61 60–72 45–52 40–73 35–70
  Width 33–74, 40 60 30–60 40–50 20–56 30–60
Distance from anterior end to:
  Nerve ring 174–388, 176 210 147–177 165–240 70–233 190–295
  Excretory pore 139–282, 233 325 300–310 250–340 200 229–633 250–345
  Deirids 178–393, 239 340 300–360 280–330 250–381
Esophagus length 320–419, 338 500 310–360 380–450 340–470 340–716 345–495
Corpus width 23–54, 23 37–45
Right spicule 544–829, 717 1,110 310–560 455–665 877 580–1,160 750–1,420
Left spicule 545–825, 735
Gubernaculum
  Length 21–39, 28 19.6 10–30 25–32 21–47 28–40
  Width 13–24, 18 10 10–21 15–15 10–20 15–25
Genital cone
  Length 51–91, 71 14.5 45–93 40–65 40–70
  Width 34–95, 72 9 43–63 35–45 20–66
Females Range, allotype
Body length 5.070–12,417; 6,961 12,900 6,700–8,440 5,500–13,100 6,800–7,300 5060–12,670 5,500–13,700
Maximum width 129–432, 228 300 140–320 110–250 140–150 100–320 100–290
No. of ridges in midbody synlophe 36–45 44–46 40–48 40–46 38–42 35–48
Cephalic vesicle
  Length 50–97, 74 75 37–62 50–72 40–74 35–65
  Width 38–89, 48 40 33–52 35–50 36–67 35–60
Distance from anterior end to:
  Nerve ring 154–254, 154 240 160–210 145–200 100–250 130–285
  Excretory pore 156–389, 298 380 300–403 235–310 221–402 345–380
  Deirids 207–402, 307 400 310–350 245–320 235–275
Esophagus length 303–468, 378 580 318–415 370–550 292–437 350–500
Corpus width’ 29–75, 38
Distance vulva – Posterior end 232–466, 306 200 250–422 110–250 112–135 105–233 112–255
Vagina 38–88, 36 25 32–47 (26–35) 15–30 23–60 15–25
Vestibule length 91–205, 158 350 27–50 (55–63) 100–160 210–225 170–230 160–310
Vestibule width 35–82, 60 (18–35)
Sphincter length 22–70, 42 80 8–14 (28–40) 40–50 50–60 40–65
Sphincter width 16–74, 38 65 38–45 (23–31) 40–50 33–63 40–80
Infundibulum 44–259, 197 300 22–41 (210–300) 160–240 150–340 160–315
Uterus 1,114–2,020; 1,498 2,500 906–1,363 600–2,800 1,350–2,540 800–1,560
Eggs in utero 70–201, 74 +200 48, 62 20–170 6–50
Eggs’ length 50–72 31–59 65–80 56–63 60–70 55–72
Eggs’ width 30–60 25–35 38–50 25–30 30–40 38–45
Tail 50–86, 74 75 45–78 40–50 43–45 43–97 40–100

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