Dalatias

Dalatias is a genus of pelagic cartilaginous fish that belong to the family Dalatiidae. These deep-water sharks are characterized by their long, slender bodies and relatively small size. They are found in temperate and tropical waters around the world, typically in oceanic environments ranging from the surface to depths of over 1,000 meters.

There are six recognized species within the Dalatias genus: Lanchester's catshark, Dalatias arcuatus, Dalatias licha, and three others, which are often referred to as Dalatias tinardi, Cnidura tinardi, and Squalus tinardi. These sharks have a relatively small jaws and teeth, which are adapted for consuming small fish and squid.

Dalatias are thought to be relatively rare and are often encountered in open ocean settings. They are apex predators but their dietary preferences are not well understood. Some research suggests that they may be opportunistic feeders, consuming whatever prey is available.

In terms of conservation, the IUCN Red List does not consider the Dalatias genus to be of particular concern. However, their habitat often overlaps with areas of high fishing pressure and marine pollution, which may impact local populations. Additionally, because of their rarity, intense fishing activities may pose a threat to the individuals of this genus.

Further research is needed to better understand the ecological role, distribution, and abundance of the Dalatias genus.