TABLE 2 in Redescription of the eel Ilyophis arx Robins, 1976 (Anguilliformes: Synaphobranchidae: Ilyophinae) with a description of a new species of Ilyophis, and a taxonomic synopsis of the Ilyophinae

TABLE 2. Comparison of morphometric, meristic, and morphological data for all species of Ilyophis. For unique specimens (holotypes and paratypes), the bilateral pore counts are recorded left/right (if recorded in original description).
Ilyophis arx 1Ilyophis blachei 2Ilyophis brunneus 3Ilyophis maclainei 1Ilyophis nigeli 4Ilyophis robinsae 5Ilyophis saldanhai 7Ilyophis singularis 6Total length (mm)215–610 (n=25)4 1 2 – 7 (n=12)72217–479 (n=36)242, 263227–470 (n=45)348354–409 (n=3)270, 248Proportions (% TL)Mean (range)RangeRangeHolotype, ParatypeRangeHolotypeMean (range)Holotype, ParatypePredorsal length16.1 (14.1–18.1)15.4–20.410.5–14.815.6, 15.112.8–16.315.116.4 (15.6–17.5)14.0, 14.3Preanal length36.5 (33.4–43.1)26.7–31.929.0–33.932.2, 30.029.4–34.431.633.4 (33.0–34.2)37.4, 37.5Head length12.4 (9.9–14.2)10.7–14.27.4–10.612.6, 11.910.2–12.510.713.1 (13.0–13.3)12.4, 11.7Trunk length24.1 (20.9–28.8)14.0–17.718.3–22.519.0, 18.217.8–22.0– –20.3 (19.7–21.2)25.9, 26.2Tail length63.5 (56.9–66.6)68.1–73.368.4–72.667.8, 70.0– –– –66.6 (65.8–67.0)62.6, 63.3Body depth at anus6.0 (4.4–7.4)3.6–5.2– –4.1, 4.83.0–5.5– –4.1 (3.3–4.5)4.5, 4.5Lateral line length41.0(35.5–45.7)ca 87–9591.0–97.3(n=4)771.7, 75.668.2–85.7ca 7559.4(57.5–61.9)80, – –Proportions (% HL)Snout length30.9 (25.3–35.7)32.8–38.634.2–44.038.6, 32.825.7–33.837.533.5 (30.9–37.5)37.4, 39.8Eye diameter11.4 (9.4–13.7)10.2–12.77.7–14.310.5, 13.78.5–12.18.311.3 (10.8–11.8)10.5, 10.0Postorbital distance57.3 (54.5–62.6)47.7–57.842.9–56.756.8, 54.0– –– –58.8 (57.5–60.0)52,1, 50.9Upper-jaw length46.9 (39.9–63.2)43.5–53.138.1–63.346.7, 47.842.7–49.5– –51.8 (50.4–53.9)51.2,56.4Interorbital width22.5 (14.2–31.4)11.4–17.310.0–24.021.6, 21.0– –– –18.2(17.7–19.0)13.5,13.5Gill-opening (GO)11.4 (8.2–16.5)– –8.8–20.09.2, 11.511.6–17.612.810.4(9.7–11.2)10.5, 12.8Interbranchial width19.6 (13.3–27.8)– –– –12.4, 12.7– –– –11.7(10.8–12.8)– –Pectoral-fin length19.0 (10.3–26.6)10.0–20.59.5–24.025.5, 26.115.0–24.513.619.8–21.618.0, 16.6MeristicsSO pores3–45-633/3, 3/35–63/433, 3IO (including AD) pores57–85-66/6, 6/67–96/657/8, 7/7Frontal pores01001–2000Supratemporal pores03000–3000POM pores7–1010–119–108/8, 8/89–117/7710/8, 8/8