Family Species No. and Morphology of Chromosomes Reference Archiacanthocephala Macracanthorhynchus hirudinaceus 2n=12 Noe, Jones & Ward [15] Macracanthorhynchus hirudinaceus 2n=6 Robinson [16] Echinorhynchidae Pomphorhynchus proteus 2n=16 Von Voss [12] Echinorhynchus acus 2n=32 Hamann[11] Echinorhynchus haeruca 2n=32 Hamann [11] Echinorhynchus polymorphus 2n=32 Hamann [11] Echinorhynchus gadiMueller, 1776 2n=16 Robinson [17] Echinorhynchus gadi 2n=16 Walton [18] Echinorhynchus truttae 2n=7/8 Parentiet al. [19] Acanthocephalus ranae (Schrank, 1788) 2n=16 Robinson [16] Acanthocephalus ranae 2n=8 John [20] 2n=16 Walton [18] Acanthocephalus lucii 2n=6 (2sm-m+1sm) 1st (X) 1m (Supernumerary B) Spakulovaet al. [21] Moniliformidae Moniliformis dubius 2n=8 (female); 2n=7 (male) Robinson [16] Polymorphidae Polymorphus minutes (Goeze, 1782) 2n=16 Robinson [16] Polymorphus minutes 2n=16 Walton [18] Pomphorhynchidae PomphorhynchuslaevisMueller, 1776 2n=8 Robinson [16] Pomphorhynchus laevis 2n=7/8 Mutafova&Nedeva[22], Fontana et al. [23] Pomphorhynchus laevis 2n=6+X Bambarovaet al. [24] Pomphorhynchus tereticollis 2n=6+X Bambarovaet al.[24] Pomphorhynchus kashmirensisKaw, 1941 2n=8=4sm+4st Present study Neoechinorhynchidae Neochinorhynchus manasbalensis Kaw, 1951 2n=8=2m+2sm+4t Present study Rhadinorhynchidae Leptorhyncoides plagicephalus (Westrumb, 1821) 2n=14 Fontana et al. [23] Leptorhyncoides thecatus 2n=5/6 Bone [25]

Table 3: Summary of Chromosome number of Acanthocephala from 1891 till Date.