[4] A. cyrusi has been found parasitizing the fish: Blackhand sole (Pegusa nasuta referred to by its synonym Solea bleekeri) and the Small-spotted grunter (Pomadasys commersonnii) in Lake St. Lucia, Natal, South Africa.

Apical hook reaches 83–101 or 118–137 um in length and has root with large, oblique, anterior manubrium.

Whole trunk with regular transverse rows of uniform, acuminate, 13–22 um long spines.

The trunk is cylindrical and has spines only on the anterior portion smaller than probiscus hooks and variable in their distribution.

[4] A. irregularis is found parasitizing the Combtooth blenny (Parablennius zvonimiri) in the Gulf of Odesa, Ukraine, the Mushroom goby (Ponticola eurycephalus) in the Sukhyi Estuary, in the Black Sea, and the Tubenose goby (Proterorhinus marmoratus) and Black-striped pipefish (Syngnathus abaster) in both locations.

Breizacanthus Golvan, 1969 contains many species: Infests the Striped red mullet (Mullus surmuletus).

[10] H. holospinus has been found parasitizing the Striped eel catfish (Plotosus lineatus), in Halong Bay, Vietnam.

[12] Hypoechinorhynchus Yamaguti, 1939 has several species: H. magellanicus was found parasitizing Champsocephalus esox in the eastern mouth of the Beagle Channel.

[4] The proboscis hooks in Solearhynchus de Buron and Maillard, 1985 gradually decrease in size posteriorly.

Males had two testes in the posterior part of the body distant from six piriform cement glands.

[6] This species was also recorded in the Black Sea by Belofastova and Korniychuk (as the synonym Acanthocephaloides rhytidotes).