Table 1.

Morphometric data for ascaridoid larval morphotypes isolated from Conger myriaster (Brevoort) (Anguilliformes: Congridae) caught in the Zhoushan Fishery, China (measurements in mm)

	ATB (n = 10)	HTS (n = 10)	HTIV (n = 10)	HTG (n = 10)	HTL (n = 8)	RTZ (n = 3)
BL	9.0–25.0	8.0–21.0	7.0–20.0	9.0–23.0	6.0–19.0	7.0–8.0
OL	0.84–1.93	1.12–1.85	0.62–1.31	1.15–2.18	0.63–1.31	0.66–0.70
VL	0.40–0.79	0.07–0.10	0.05–0.15	0.05–0.10	0.05–0.15	0.05
VW	0.11–0.30	0.06–0.10	0.05–0.14	0.05–0.09	0.05–0.15	0.08–0.09
ICL	–	0.46–0.74	0.13–0.39	0.67–1.29	0.09–0.18	–
VAL	–	0.42–1.27	0.78–2.43	0.70–1.39	1.26–6.29	0.37–0.44
EC	at base of lip	0.35–0.48	0.27–0.47	0.35–0.57	0.28–0.48	0.26–0.27
TL	0.059–0.15	0.14–0.27	0.10–0.27	0.09–0.19	0.12–0.23	0.12–0.13
OL/BL (%)	7.5–13.1	8.8–14.0	6.2–8.9	9.5–13.5	5.2–11.3	8.8–9.4
ICL:VAL ratio	–	1:0.8–2.2	1:3.2–8.1	1:0.9–1.4	1:8.7–48.8	–
ICL/OL (%)	–	24.7–45.2	19.2–37.3	58.1–71.1	10.2–15.8	–

Abbreviations: BL body length, OL oesophagus length, VL ventriculus length, VW ventriculus width, ICL intestinal caecum length, VAL ventricular appendix length, EC distance from excretory pore to cephalic end, TL tail length, ATB Anisakis type I of Berland (1961) [23], HTS Hysterothylacium larval type of Smith (1983) [24], HTG Hysterothylacium larval type of Guo et al. (2014) [27], HTL Hysterothylacium larval type of Li et al. (2012) [25], HTIV Hysterothylacium larval type IV of Shamsi et al. (2013) [26], RTZ Raphidascaris larval type of Zhao et al. (2016) [22]