TABLE 4 in Rhabdias aegyptiaca El-Garhy & Garo, 2006 (Nematoda: Rhabdiasidae), parasitic in Sclerophrys regularis (Reuss) (Anura: Bufonidae) with a preliminary treatment of the problematic taxonomic status of North African Rhabdias

TABLE 4. Measurements, morphometric percentages, and morphometric ratios of the Saharo-Arabian Rhabdias aegyptiaca El-Garhy & Garo, 2006 compared to the closely related Afrotropical taxa of Rhabdias Stiles & Hassall, 1905 recorded from lissamphibian hosts. Species/ FeatureRhabdias picardiae Junker, Lhermitte-Vallarino & Bain, 2010Rhabdias africanus Kuzmin, 2001Rhabdias aegyptiaca El-Garhy & Garo, 2006ReferenceJunker e t al. (2010)Svitin et al. (2018)Kuzmin (2001)Present studyHostSclerophrys gutturalis (Power) aAmietia delalandii (Duméril & Bibron) bSclerophrys maculata (Hallowell) c and Sclerophrys garmani d (Meek)Sclerophrys regularis (Reuss) eHost familyBufonidae GrayPyxicephalidae BonaparteBufonidaeBufonidaeLocalityPretoria Gauteng, South AfricaAlong the Mooi River, Potchefstroom, North-West, South AfricaKruger National Park, South AfricaAbu-Rawash, Kerdasa, north of Giza, EgyptBody length [L]8,000–8,3506,800–13,800 (9,900)12,450–19,800 (16,440)4,400–7,700 (5,900)Maximum body width [W]530–600206–478 (328)300–450 (377.5)147–375 (261)Maximum body W (%) f[6.4–7.3]i[2.9–4.3 (3.3)] i[2.3–2.4 (2.3)] i2.9–7.2 (4.4)Buccal capsule [BC] depth7–1010–13 (11)15–20 (17.7)7–16 (13)Buccal capsule W23–2518–25 (21)20–23 (21.5)11–17 (15)BC L: W ratio0.30–0.400.40–0.60 (0.54)[0.75–0.87 (0.82)]i0.52–0.97 (0.85)Esophagus [Es] L690–790 [550] j718–960 (839) [908] j570–710 (631.9)336–428 (377)Esophagus L (%) f8.6–9.96.5–11.2 (8.7)3.5–4.7 (3.9)4.9–8.4 (6.5)Pre-nerve ring L235–250246–356 (293)[186] j110–147 (130)Pre-nerve ring L (%) f[2.9]i[3.6−4.2 (3.0)]i---h0.3–2.8 (1.9)Distance from Es103–131 (117)anterior end to nerve ring[154]j[286] j170–230 (192.5)Distance from Es26.8–35.5 (31.1)anterior end to nerve ring (%) g[28.0] j[31.5]j28.4–33.3 (30.5)Pre-excretory pore L---h373–456 (410)---h170–207 (190)Pre-excretory pore L (%) f---h[3.3−5.4 (4.1)] i---h2.6–3.9 (3.2)Pre-intestinal distance[699−797] i[921] j[575] j351–438 (390)Pre-intestinal distance (%) f[8.7−10.0]i[6.9]j---h5.1–8.7 (6.7)Pre-vulal distance4,535–5,0504,000–8,000 (5,800)6,600–9,300 (8,380)2,500–3,500 (2,900)Pre-vulal distance (%) f55.0–62.056.0–61.0 (58.0)46.8–49.7 (47.8)50.2–58.6 (54.4)Tail length270–350257–373 (308)250–400 (331.3)156–317 (223)Tail L (%) f3.5–3.8%2.5–4.3 (3.2)l.6–3.2 (2.1)2.4–6.8 (3.9)Eggs length100–120113–123 (117)110–12099–107 (104)Egg width60–6962–70 (66)60–7553–73 (65) ......continued on the next page aGuttural toad (syns. Amietophrynus gutturalis [Power]; Bufo gutturalis Power); bDelaland’s river frog; cFlat-backed toad (syn. Bufo maculatus Hallowell); dGarman’s toad (syn. Bufo garmani Meek); eCommon African toad; fProportion of body length; gProportion of esophagus length; h ---, data neither given in the original description nor available from published illustrations; iCalculated from measurements given in the original description and in brackets; jCalculated from illustration in original description and in brackets [Kuzmin 2001, fig. 1A; Junker et al. 2010, figs. 1B, 1G, 1I, 1K; Svitin et al. 2018, figs. 1A, 4A]; range values are given first, followed by the mean value in parentheses where available; bold text values represent differential morphometric measurements and ratios compared to Rhabdias aegyptiaca.