Complex sentence: The mouse catshark ("Galeus murinus") is a species of catshark, part of the family Scyliorhinidae, common in the northeastern Atlantic Ocean, from Iceland to Western Sahara.
Split into simpler sentences: The mouse catshark ("Galeus murinus") is a species of catshark and part of the family Scyliorhinidae. It is common in the northeastern Atlantic Ocean from Iceland to Western Sahara.