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Table 2

Comparison of M. arcasii n. sp. and M. duriensis n. sp. to other Myxobolus spp. reported from fishes belonging to closely related genera.

Myxobolus spp. Hosts and location Site of infection SL SW ST PCL PCW PTc Source
M. arcasii n. sp. Achondrostoma arcasii in Portugal Kidneys and gonads 9.7 ± 0.5 (9.3–10.7) 8.1 ± 0.2 (8.0–8.7) 6.5 ± 0.2 (6.3–6.7) 3.9 ± 0.3 (3.3–4.3) 3.0 ± 0.2 (2.7–3.3) 6–7 Present study
M. duriensis n. sp. Pseudochondrostoma duriense in Portugal Gills 13.5 ± 0.3 (13.0–14.0) 9.0 ± 0.5 (8.0–9.7) 7.6 ± 0.3 (7.3–8.0) 4.9 ± 0.3 (4.3–5.3) 3.4 ± 0.1 (3.3–3.7) 6 Present study
M. albovae Krasilnikova in Shulman, 1966 Leuciscus baicalensis, and Chondrostoma nasus in the USSR Gills 10.5–13.0 8.0–9.5 6.0–6.5 4.8–5.5 2.7–3.3 [17, 69]
M. arrabonensis Cech et al., 2015 Chondrostoma nasus in Hungary Gills 8.7 ± 0.6 (8.4–10.0) 7.8 ± 0.3 (7.6–8.0) 5.5 (5.4–5.6) 4.8 ± 0.4 (4.5–5.9) 2.9 ± 0.1 (2.7–3.1) 6 [8]
M. bliccae Donec and Tozyyakova, 1984 Blicca bjoerkna in Ukraine, and other Eurasian cypriniforms, including Chondrostoma nasus in the USSR Gills 12.4 ± 0.7 (10.5–14.0) 10.0 ± 0.7 (9.0–12.0) 6.6 ± 0.2 (6.0–7.0) 6.2 ± 0.5 (5.5–7.0) 3.4 ± 0.3 (3.0–4.0) 4–5 [13, 52]
M. bramae Reuss, 1906 Abramis brama in Russia, and other Eurasian cypriniforms, including Chondrostoma nasus in the USSR Gills 10.0–12.0 8.0–10.0 4.5–6.5 4.0–5.5 2.3–3.5 4–5 [17, 25, 59, 69]
M. chondrostomi Donec, 1962 Chondrostoma nasus in Ukraine Muscle 13.5–17.0 10.0–11.7 L 7.0–9.0 L 4.0–4.5 [17]
S 5.5–7.2 S 3.0–3.5
M. donecae Kashkovski in Shulman, 1966 Leuciscus leuciscus and L. idus, as well as in Chondrostoma nasus and Tinca tinca in the USSR Gills, ureter 10.0–13.0 7.4–8.7 L 7.0 L 3.0 [13, 17]
S 3.7 S 2.5
M. gallaicus Iglesias et al., 2001 Pseudochondrostoma polylepis in Spain Gills 10.0 (8.5–11.0) 8.8 (8.2–9.5) 5.7 (5.0–6.0) 4.9 (4.5–5.5) 2.9 (2.7–3.0) 7–8 [32]
M. impressus Miroshnichenko, 1980 Barbus barbus and Squalius cephalus in Ukraine. Also, Abramis brama in Hungary, and Pseudochondrostoma polylepis in Spain Fins, gills 10.5–13.7 9.2–11.0 6.0–7.5 5.5–6.8 2.8–4.0 [17, 32, 59]
M. leuciscini González-Lanza and Alvarez-Pellitero, 1985a Squalius cephalus in Hungary and probably Spain, and possibly in Achondrostoma arcasii and Pseudochondrostoma polylepis in Spain Gills 10.5 ± 0.2 (10.0–11.5) 9.0 ± 0.2 (8.5–9.5) 6.3 ± 0.2 (6.0–6.5) 5.3 ± 0.2 (4.0–6.0) 2.9 ± 0.1 (2.5–3.2) 6–8 [25, 32, 58]
M. lobatus (Nemeczek, 1911) Landsberg and Lom, 1991 Leuciscus leuciscus and L. aspius in Germany, and also Chondrostoma nasus in the USSR Gills 12.6 8.2 4.2 [17, 69]
M. macrocapsularis Reuss, 1906 Blicca bjoerkna in France, and other Eurasian cypriniforms, including Chondrostoma nasus in the USSR Gills 13.6 ± 0.9 (12.0–16.0) 9.7 ± 0.7 (8.0–11.0) 6.2 ± 0.2 (6.0–6.5) 7.3 ± 0.6 (6.5–9.0) 3.4 ± 0.3 (3.0–4.0) 7 [13, 41, 43, 52]
M. muelleri Bütschli, 1882b Squalius cephalus, and possibly in other Eurasian cypriniforms, including Achondrostoma arcasii and Pseudochondrostoma polylepis in Spain Gills 9.8 ± 0.2 (9.5–10.0) 7.5 ± 0.2 (7.5–8.0) 5.2 ± 0.2 (5.0–5.5) 4.6 ± 0.5 (4.0–5.0) 3.6 ± 0.5 (3.0–4.0) 5–6 [17, 25, 33, 36, 41, 57]
M. paksensis Cech et al., 2015 Chondrostoma nasus in Hungary Swimbladder 14.8 ± 0.6 (14.4–15.2) 11.0 ± 0.7 (10.4–12.0) 8.7 (8.4–9.2) 7.0 ± 0.4 (6.8–7.6) 4.3 ± 0.2 (4.0–4.6) 6 [8]
M. pseudodispar Gorbunova, 1936 Rutilus rutilus, and several other Eurasian cypriniforms, including Achondrostoma arcasii and Pseudochondrostoma polylepis in Portugal and Spain Muscle, gills, kidney, urinary ducts, liver, spleen 10–12 7.0–9.5 5.3–6.0 L 4.5–6.2 L 3.0–3.7 [10, 17, 25]
S 3.9–5.0 S 2.7–3.0
M. szentendrensis Cech et al., 2015 Chondrostoma nasus in Hungary Gills 9.2 ± 0.3 (8.8–9.6) 7.9 ± 0.7 (7.6–8.0) 6.7 (6.4–7.1) 5.3 ± 0.3 (4.8–5.6) 3.0 ± 0.2 (2.8–3.2) 6 [8]

SL, myxospore length; SW, myxospore width; ST, myxospore thickness; PCL, polar capsule length; PCW, polar capsule width; PTc, number of polar tubule coils; S, smaller; L, larger.

Measurements from infections in the type host are given in μm, as M ± SD (range) (when available).

a

Measurements from the original description in Squalius cephalus, since M. leuciscini was morphologically and molecularly re-described from this fish host in Hungary [58].

b

Data from the morphological re-description and molecular identification of the parasite from its original site of infection and host species in Hungary [57].

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