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Plesiochorus cymbiformis (Rudolphi, 1819) Looss, 1901 (Digenea: Gorgoderidae) in Olive Ridley Sea turtles Lepidochelys olivacea (Eschscholtz, 1829) (Testudines: Chelonidae) from the Brazilian coast: New geographic occurrence and associated injuries

H. Jerdy
H. Jerdy
, 
R. B. Ferioli
R. B. Ferioli
, 
H. Gallo Neto
H. Gallo Neto
, 
M. Zíllio
M. Zíllio
, 
A. Monteiro
A. Monteiro
, 
E. C. Q. Carvalho
E. C. Q. Carvalho
 et 
M. R. Werneck
M. R. Werneck
   | 25 déc. 2021
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Article Category: Research note
Publié en ligne: 25 déc. 2021
Pages: 408 - 414
Reçu: 30 mai 2021
Accepté: 15 nov. 2021
DOI: https://doi.org/10.2478/helm-2021-0045
Mots clés
© 2021 H. Jerdy, R. B. Ferioli, H. Gallo Neto, M. Zíllio, A. Monteiro, E. C. Q. Carvalho, M. R. Werneck, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

Plesiochorus cymbiformis (Rudolphi, 1819) Looss, 1901 (Digenea: Gorgoderidae) found in Lepidochelys olivacea (Eschscholtz, 1829) (Testudines: Chelonidae) from Brazil. (scale bar=1 mm).
Plesiochorus cymbiformis (Rudolphi, 1819) Looss, 1901 (Digenea: Gorgoderidae) found in Lepidochelys olivacea (Eschscholtz, 1829) (Testudines: Chelonidae) from Brazil. (scale bar=1 mm).

Fig. 2

Marked inflammatory infiltrate in the lamina propria of the urinary vesicle composed of macrophages, lymphocytes and heterophiles (scale bar = 100 μm). Inset: macrophages (black arrow), rare lymphocytes (white arrow) and heterophiles (red arrow) (scale bar = 25 μm).
Marked inflammatory infiltrate in the lamina propria of the urinary vesicle composed of macrophages, lymphocytes and heterophiles (scale bar = 100 μm). Inset: macrophages (black arrow), rare lymphocytes (white arrow) and heterophiles (red arrow) (scale bar = 25 μm).

Fig. 3

Focal area of discontinuity of the bladder epithelium (arrow), with replacement of the region by necrotic debris and mixed inflammatory infiltrate(scale bar = 50μm).
Focal area of discontinuity of the bladder epithelium (arrow), with replacement of the region by necrotic debris and mixed inflammatory infiltrate(scale bar = 50μm).

Morphometric data of the genus Plesiochorus cymbiformis (Rudolphi, 1819) Looss, 1901 (Digenea: Gorgoderidae) from marine turtles (Testudines: Chelonidae). Data are presented as range (mean) and measurements are in millimeters.

Caballero (1954) Chattopadhyaya (1970) Blair & Limpus (1982) Werneck et al. (2018) Santoro & Morales (2007) Present report
Host C. mydas E. imbricata C. caretta C. caretta L. olivacea L. olivacea
Locality Panama India Australia Brazil Costa Rica Brazil
Site of infection UB Liver UB UB UB UB
Number of parasites 3 1 6 31 (10 mens.) 13 (13 mens)
Body length 2.5–3.2 8.5 2.97–7.21 (5.47) 7.91 – 8.86 (8.23) 12.8–15.7 (14) 4.8 – 8.8 (5.12)
Body width 1.21–1.27 4.7 1.31–3.7 (2.2) 2.73 – 3.04 (2.87) 4.4–5.4 (5.1) 1.8 – 4.0 (2.1)
Oral sucker length 0.13–0.24 0.74 0.41–0.86 (0.62) 0.51 – 0.62 (0.58) 0.84–1.07 (0.96) 0.61 – 0. 95 (0.77)
Oral sucker width 0.28–0.29 0.86 0.42–0.85 (0.64) 0.75 – 0.85 (0.79) 1.14–1.32 (1.24) 0.61 – 1. 0 (0.80)
Esophagus length 0.038–0.057 0.16 – 0.35 – 0.45 (0.39) 0.31–0.56 (0.44) 0.15 – 0.38 (0.28)
Esophagus width 0.038–0.046 – – 0.09 – 0.2 (0.16) – 0.05 – 0.12 (0.08)
Pharynx length 0.068–0.076 0.26 0.15–0.3 (0.21) 0.27 – 0.34 (0.29) 0.25–0.37 (0.32) 0.19 – 0.33 (0.25)
Pharynx width 0.099–0.10 0.36 0.18–0.37 (0.25) 0.29 – 0.34 (0.31) 0.36–0.37 (0.37) 0.25 – 0.33 (0.29)
Ventral sucker length 0.37–0.39 0.5–1.26 (0.95) 0.92 – 1.37 (1.2) 1.51–1.89 (1.72) 0.97 – 1.05 (1.21)
Ventral sucker width 0.40–0.41 1.4* 0.62–1.37 (0.95) 1.05 – 1.34 (1.24) 1.57–1.89 (1.73) 0.98 – 1.5 (1.27)
Right testis length 0.27–0.28 2.4 0.48–1.52 (0.9) 1.39 – 1.6 (1.34) 2.39–3.46 (2.83) 0.210 – 1.47 (1.09)
Right testis width 0.19–0.2 1.7 0.43–1.15 (0.7) 0.89 – 1.3 (1.08) 1.57–2.14 (1.93) 0.24 – 1.16 (0.78)
Left testis length 0.26–0.33 2.4 0.48–1.52 (0.9) 1.34 – 1.53 (1.46) 2.4–3.4 (2.9) 0.78 – 1.56 (1.24)
Left testis width 0.11–0.17 2.2 0.43–1.15 (0.7) 0.83 – 1.38 (1.07) 1.63–2.2 (1.95) 0.54 – 1.16 (0.83)
Ovary length 0.11–0.14 0.45 0.23–0.37 (0.29) 0.43 – 0.45 (0.43) 0.44–0.63 (0.53) 0.18 – 0.38 (0.28)
Ovary width 0.084–0.087 0.71 0.21–0.37 (0.29) 0.41 – 0.49 (0.44) 0.37–0.69 (0.57) 0.20 – 0.54 (0.38)
Mehlis' gland length 0.065–0.095 – – 0.28 – 0.45 (0.34) 0.18–0.31 (0.28) 0.15 – 0.47 (0.28)
Mehlis' gland width 0.095–0.152 – – 0.34 – 0.38 (0.36) 0.18–0.37 (0.28) 0.25 – 0.60 (0.43)
Right Vit. follicles length – – 0.19–0.42 (0.32) 0.48 – 0.52 (0.5) 0.56–0.94 (0.79) 0.27 – 0.68 (0.44)
Right Vit. follicles width – – 0.19–0.5 (0.28) 0.34 – 0.5 (0.43) 0.31–0.63 (0.50) 0.27 – 0.50 (0.36)
Left Vit. follicles length – – 0.19–0.42 (0.32) 0.47 – 0.56 (0.53) 0.56–0.88 (0.73) 0.30 – 0.74 (0.47)
Left Vit. follicles width – – 0.19–0.5 (0.28) 0.37 – 0.46 (0.41) 0.50–0.56 (0.57) 0.21 – 0.41 (0.70)
Egg length 0.042–0.046 0.0312–0.044 0.03–0.047 (0.038) 0.023 – 0.04 (0.033) 0.032–0.039 (0.034) 0.029 – 0.037 (0.032)
Egg width 0.027–0.030 0.0310–0.0448 0.022–0.041 (0.031) 0.017 – 0.03 (0.025) 32 0.021 – 0.032 (0.027)
(n=45)
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