Elaeophora abramovi is a nematode

Nematode

The nematodes or roundworms are the most diverse phylum of pseudocoelomates, and one of the most diverse of all animals. Nematode species are very difficult to distinguish; over 28,000 have been described, of which over 16,000 are parasitic. It has been estimated that the total number of nematode...

 parasite

Parasitism

Parasitism is a type of symbiotic relationship between organisms of different species where one organism, the parasite, benefits at the expense of the other, the host. Traditionally parasite referred to organisms with lifestages that needed more than one host . These are now called macroparasites...

 found in the hepatic arteries

Hepatic artery

Hepatic artery can refer to:* Common hepatic artery * Hepatic artery proper...

 of the Moose

Moose

The moose or Eurasian elk is the largest extant species in the deer family. Moose are distinguished by the palmate antlers of the males; other members of the family have antlers with a dendritic configuration...

 (Alces alces) in Russia.

Discovery and nomenclature

This species was first described in 1951 from adults found adhering to the inner wall of the hepatic arteries of a Russian Moose

Moose

The moose or Eurasian elk is the largest extant species in the deer family. Moose are distinguished by the palmate antlers of the males; other members of the family have antlers with a dendritic configuration...

 (Alces alces), and named Alcefilaria abramovi. In 1974, it was transferred to the genus Cordophilus, and in 1976 it was transferred to the genus Elaeophora. Consequently, some of the older literature on this species uses the genus names Alcefilaria or Cordophilus.

Hosts and geographic distribution

E. abramovi has been found in the hepatic arteries of European elk

Moose

The moose or Eurasian elk is the largest extant species in the deer family. Moose are distinguished by the palmate antlers of the males; other members of the family have antlers with a dendritic configuration...

 (Alces alces), Reindeer

Reindeer

The reindeer , also known as the caribou in North America, is a deer from the Arctic and Subarctic, including both resident and migratory populations. While overall widespread and numerous, some of its subspecies are rare and one has already gone extinct.Reindeer vary considerably in color and size...

 (Rangifer tarandus) and Red deer

Red Deer

The red deer is one of the largest deer species. Depending on taxonomy, the red deer inhabits most of Europe, the Caucasus Mountains region, Asia Minor, parts of western Asia, and central Asia. It also inhabits the Atlas Mountains region between Morocco and Tunisia in northwestern Africa, being...

 (Cervus elaphus), as discussed in. E. abramovi has only been found in Russia

Russia

Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

.