Description of two new species of Diplectanum Diesing, 1858 (Monogenea: Diplectanidae) collected from Protonibea diacanthus (Lacep`ede, 1802) (Teleostei: Sciaenidae) from waters off northern Australia Author Porter, Megan School of Agricultural, Environmental and Veterinary Sciences, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia & Gulbali Institute, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia mporter@csu.edu.au Author Barton, Diane P. School of Agricultural, Environmental and Veterinary Sciences, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia & Gulbali Institute, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia Author Francis, Nidhish School of Agricultural, Environmental and Veterinary Sciences, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia & Gulbali Institute, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia Author Shamsi, Shokoofeh School of Agricultural, Environmental and Veterinary Sciences, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia & Gulbali Institute, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia text International Journal for Parasitology: Parasites and Wildlife 2023 2023-08-31 21 99 109 http://dx.doi.org/10.1016/j.ijppaw.2023.04.004 journal article 292857 10.1016/j.ijppaw.2023.04.004 2757ba7b-4b27-4412-94ed-37e75ea63afa 2213-2244 PMC10176033 37188004 10668282

Table 2 Comparative measurements of Diplectanum spp. (measurements in micrometres; measurements are range followed by mean in parentheses; - indicates no measurements available.).

Species	Diplectanum	Diplectanum	Diplectanum	Diplectanum
a At level of ovary.
	timorcanthus	diacanthi n.	oliveri	glandulosum
	n. sp.	sp.
Reference	Present study	Present study	Williams	Williams
			(1989)	(1989)
Host	Protonibea	Protonibea	Argyrosomus	Argyrosomus
	diacanthus	diacanthus	hololepidotus	hololepidotus
Location	Australia:	Australia:	Australia:	Australia:
	Northern	Northern	Western	Western
	Territory	Territory	Australia	Australia
Total length	546-1830	645-1870	909-1139	499-640
	(923)	(1087)	(1010)	(594)
Greatest	75-214 (145)	127-460	166-224	128-154
width		(253)	(195) a	(139) a
Eye spots	2 anterior to	2 anterior to	2 anterior to	large, intact
	pharynx	pharynx	pharynx
Tegumental	absent	absent	absent	absent
scales
Pharynx	38-79 (56)	38-101 (64)	–	–
Length
Pharynx	34-60 (46)	27-95 (62)	41-71 (56)	35-51 (39)
Width
Peduncle	57-212 (133)	89-366 (168)	–	–
Length
Peduncle	35-147 (75)	54-163 (96)	–	–
Width
Haptor	37-94 (64)	51-101 (67)	–	–
Length
Haptor	191-291 (226)	151-301	224-275	243-269
Width		(235)	(258)	(254)
Oral Sucker	8-18 (13)	10-24 (15)	–	–
Length
Oral Sucker	8-21 (12)	9-21 (13)	–	–
Width
Squamodisc	64-164 (118)	23-74 (48)	–	–
Length
Squamodisc	34-156 (105)	35-101 (65)	166-189	99-106 (101)
Width			(175)
Ventral	56-67 (61)	46-75 (60)	67-77 (72)	72-77 (74)
Anchor
Length
Ventral	2-15 (8)	4-20 (10)	–	–
Anchor
Base
Width
Dorsal	52-69 (62)	46-78 (66)	66-70 (68)	64-67 (65)
Anchor
Length
Dorsal	6-12 (9)	4-14 (10)	–	–
Anchor
Base
Width
Ventral Bar	98-133 (118)	93-124 (109)	128-158	117-153
Length			(148)	(134)
Ventral Bar	9-26 (21)	8-19 (16)	–	–
Width
Dorsal Bar	64-108 (97)	48-66 (61)	96-110 (102)	90-117 (105)
Length
Dorsal Bar	14-28 (23)	12-40 (20)	–	–
Width
MCO Length	42-96 (74)	81-110 (96)	166-179	51-66 (59)
			(171)
MCO Width	5-15 (10)	9-12 (10)	–	–