limulidae

• Научное название семейства морских членистоногих, широко известных как мечехвосты.

A scientific noun referring to a family of marine arthropods commonly known as horseshoe crabs.

proper noun

1. Horseshoe crab familyC1formalscientific

   A family of marine arthropods known as horseshoe crabs, characterized by a hard horseshoe-shaped carapace and a long tail spine.

   Семейство мечехвостов

   • The family Limulidae includes four extant species of horseshoe crabs.
   • Fossil records show that Limulidae have existed for over 450 million years.
   • Scientists study Limulidae for their unique blue blood, which is used in medical testing.
   • Populations of Limulidae are threatened by habitat loss and overharvesting.