Assertion: red diamond rattlesnake | /r/PartOf | the subfamily
Facets:
Source sentences:
text: (See "Southern Pacific Rattlesnake,") Equipped with loreal pits – heat-sensing organs on each side of its face – the red diamond rattlesnake belongs to the subfamily commonly called "pit vipers," which includes the rattlers as well as the water moccasins and copperheads.