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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

Laboratório de Morfologia e Patologia Animal (LMPA), Setor de Patologia Animal (SPA), Universidade Estadual do Norte Fluminense Darcy RibeiroRio de Janeiro, Brazil
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Jerdy, H.
, 
R. B. Ferioli

R. B. Ferioli

Instituto Argonauta, Governador Abreu Sodré avenue 1067, UbatubaSão Paulo, Brazil
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Ferioli, R. B.
, 
H. Gallo Neto

H. Gallo Neto

Instituto Argonauta, Governador Abreu Sodré avenue 1067, UbatubaSão Paulo, Brazil
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Gallo Neto, H.
, 
M. Zíllio

M. Zíllio

Visão ambientalMosqueiro-Aracaju, Brazil
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Zíllio, M.
, 
A. Monteiro

A. Monteiro

Faculdade Pio DécimoAracaju, Brazil
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Monteiro, A.
, 
E. C. Q. Carvalho

E. C. Q. Carvalho

Laboratório de Morfologia e Patologia Animal (LMPA), Setor de Patologia Animal (SPA), Universidade Estadual do Norte Fluminense Darcy RibeiroRio de Janeiro, Brazil
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Carvalho, E. C. Q.
 and 
M. R. Werneck

M. R. Werneck

BW InstituteRio de Janeiro State, Brazil
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Werneck, M. R.
  
Dec 25, 2021
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's Cover Image
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Article Category: Research note
Published Online: Dec 25, 2021
Page range: 408 - 414
Received: May 30, 2021
Accepted: Nov 15, 2021
DOI: https://doi.org/10.2478/helm-2021-0045
Keywords
© 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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