Heterosentis heteracanthus (Linstow, 1896)

publication ID	https://doi.org/ 10.11646/zootaxa.4663.1.1
publication LSID	lsid:zoobank.org:pub:DE012953-B4AB-4444-95EF-B5BF222CED91
DOI	https://doi.org/10.5281/zenodo.3798094
persistent identifier	https://treatment.plazi.org/id/AB0787CD-0A66-FFBB-FDAB-F98CE6DC22C8
treatment provided by	Plazi
scientific name	Heterosentis heteracanthus
status

Actinopterygii

Champsocephalus esox (Günther) ( Perciformes , Channichthyidae ). SI: intestine. SD: adult. L: Tierra del Fuego Province: Beagle Channel (54°59’S, 66º45’W). R: Laskowski and Zdzitowiecki (2009).

Odontesthes hatcheri (Eigenmann) View in CoL ( Atheriniformes View in CoL , Atherinopsidae View in CoL ) (type host). SI: intestine. SD: adult. L: Tierra del Fuego Province. R: Linstow (1896), Porta (1905), Ortubay et al. (1994). C: syntype (NMNH- USNM 1338213; USNPC 37532; ZMB Vermes 6017) (see note below).

Patagonotothen longipes (Steindachner) View in CoL ( Perciformes View in CoL , Nototheniidae View in CoL ). SI: intestine. SD: adult. L: Tierra del Fuego Province: Beagle Channel (54°59’S, 66º45’W). R: Laskowski and Zdzitowiecki (2009). C: vouchers (NHMUK 07.2.21.13–16).

Patagonotothen tessellata (Richardson) ( Perciformes , Nototheniidae ). SI: intestine. SD: adult. L: Tierra del Fuego Province: Beagle Channel (54°59’S, 66º45’W). R: Laskowski and Zdzitowiecki (2009).

Note. Linstow (1896) described Heterosentis heteracanthus from Basilichthys microlepidotus (Jenyns) (syn. Atherinichthys microlepidotus ) from Tierra del Fuego. The type locality of H. heteracanthus was obtained from the syntype deposited at the NMNH-USNM. In Argentina, Basilichthys microlepidotus is considered a synonym of Odontesthes hatcheri ( Ortubay et al. 1994) . The Patagonian silverside, Odontesthes hatcheri is a native freshwater atherinid, commonly found in rivers, lakes, and reservoirs from the Andean Region of southern South America ( Conte-Grand et al. 2015 and references therein). Currently, no freshwater atherinids have been reported in Tierra del Fuego ( Semenas and Trejo, 1997). Therefore, it is possible that the type host for Heterosentis heteracanthus could be other similar marine silverside species, e.g. Odontesthes nigricans (Richardson) , with euryhaline habits.