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Table 1 Body morphometrics for the known species of Neopolystoma from the Neotropical realm

From: Tracking platyhelminth parasite diversity from freshwater turtles in French Guiana: First report of Neopolystoma Price, 1939 (Monogenea: Polystomatidae) with the description of three new species

  N. cayensis n. sp. N. guianensis n. sp. N. scorpioides n. sp. N. domitilae N. fentoni
Body length 3,342–5,575 (4,139) 2,284–3,342 (2,737) 1,512–1,770 (1,658) 4,039–4,057 1,500–2,450 (1,985)
Body maximum width 1,353–1,961 (1,753) 830–1,164 (1,037) 868–907 (894) 1,320–1,722 426–760 (568)
Haptor length 759–1,139 (912) 634–852 (755) 445–511 (485) 1,046–1,067 449–690 (571)
Haptor width 1,095–1,459 (1,249) 784–1,014 (910) 719–765 (735) 1,416–1,851 550–850 (683)
Width at vagina 1,015–1,504 (1,281) 792–1,091 (989) 837–876 (863) –  
Oral sucker width 130–356 (189) 189–391 (290) 240–245 (242) 370–450 (547) 240–496 (370)
Pharynx length 293–401 (330) 189–260 (213) 170–184 (177) 305–322 156–257 (216)
Pharynx width 276–457 (357) 226–283 (252) 226–231 (228) 328 185–367 (278)
Ovary length 140–357 (195) 149–243 (197) 136–187 (153) 322–402 80–245 (103)
Ovary width 62–118 (88) 71–120 (97) 66–71 (69) 112–127 55–169 (105)
Testis length 560–983 (762) 364–541 (437) 120–142 (127) 450–664 98–367 (225)
Testis width 468–1,283 (933) 380–527 (477) 246–301 (271) 289–338 78–251 (181)
Genital bulb width 73–129 (99) 49 45 241–273 30–83 (60)
Number of genital spines 16–17 8 8 20–21 8
Genital spine length 19–26 (23) 8.4–9.8 (8.9) 5.5–8.7 (7.7) 55–71 11
Number of eggs in utero 1 1 1 1 1
Egg length 209–289 (246) 280–344 (317) 253–279 (265) 305 245–332 (286)
Egg width 155–187 (165) 127–163 (148) 133–156 (143) 177 122–146 (136)
Haptoral sucker width 227–297 (261) 208–242 (226) 133–279 (220) 305–483 210–326 (265)
Haptor length: Body length ratio 0.22 0.28 0.29 0.26 0.29
Marginal hooklet 1 length 19.6–21.8 (21.2) 13.3–15.1 (14.3) 16.4–17.2 (16.8) 24.6 11.8–12.7 (12.5)