Viper dogfish

To catch their prey, viper dogfish extend their jaws.

An excerpt from the article 17 facts about viper dogfish
There are some who claim the process reminds them of xenomorphs. However, since the first individual of the viper shark was spotted in 1986, it is unlikely that Hans Rudolf Giger–the designer of the Alien creature–drew inspiration from the viper dogfish, as the first movie aired in 1979.