TABLE 1 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 1. Morphometric, meristic and morphological data of Ilyophis arx Robins, 1976 and Ilyophis maclainei sp. nov. For bilateral pore counts, the counts are recorded left/right.
Ilyophis arxIlyophis arxIlyophis maclainei(reexamination of type series)HolotypeParatypesThis studyHolotypeParatypeTotal length (mm)439353–401 (n=3)215–610 (n=21)242263Proportions (% TL)Mean (range)Mean (range)Predorsal length17.017.0 (16.0–17.7)16.1 (14.1–18.1)15.615.1Preanal length36.934.8 (32.9–37.2)36.5 (33.4–43.1)32.230.0Head length12.012.5 (12.0–13.0)12.4 (9.9–14.2)12.611.9Trunk length24.922.3 (20.9–24.2)24.1 (20.9–28.8)19.018.2Tail length63.165.2 (62.8–65.7)63.5 (56.9–66.6)67.870.0Body depth at anus6.45.2 (4.6–6.1)6.0 (4.4–7.4)4.14.8Proportions (% HL)Mean (range)Mean (range)Snout length33.933.9 (30.7–35.0)30.9 (25.3–35.7)38.632.8Eye diameter11.011.7 (10.1–12.8)11.4 (9.4–13.7)10.813.7Postorbital distance57.956.8 (52.9–59.8)57.3 (54.5–62.6)56.854.0Upper-jaw length48.444.9 (42.8–47.0)46.9 (39.9–63.2)46.747.8Interorbital width24.824.8 (14.3–21.0)22.5 (14.2–31.4)21.621.0Gill-opening (GO)12.410.3 (9.1–11.6)11.4 (8.2–16.5)9.211.5Interbranchial width20.519.8 (17.2–24.9)19.6 (13.3–27.8)12.412.7Pectoral-fin length26.922.7 (19.0–22.9)19.0 (10.3–26.6)25.526.1MeristicsSO pores3/33/33–43/33/3IO (including AD) pores5/55/556/66/6POM pores8/88/87–108/88/8PrePectoral LL pores3/43–62–64/55/4PreDorsal LL pores9/119–118–147/810/9PreAnus LL pores32/3633–3831–3728/3029/31PreAnalFin LL pores34/3831–3731–3930/3231/33Total LL pores39/3938–5431–4789/8894/93Dorsal rays322309–315281–347359339Anal rays257235–261219–251288291DR-AF origin7567–8070–956667PreDorsal Vertebrae1011–1210–13108PreAnus Vertebrae3735–3834–403131PreAnalFin Vertebrae3937–4037–423334PreCaudal Vertebrae5857–5854–625354Total Vertebrae131131–135128–137132134MorphologyScalesNoNoNoYesYesNumber of snout plicae44466Lower jaw plicae44–54–644