Assertion: anglerfish's jaw | /r/HasProperty | - spiracles
Facets:
Source sentences:
text: Chondrichthyes (cartilaginous) - About 1000 species - Sharks, rays, skates and ratfishes are members of this group - Skeleton of cartilage (as the name implies) - Movable jaws with well-developed teeth - Placoid scales and paired fins - 5-7 gill slits open directly into the water in most species - Spiracles in many species (openings on head used to bring water directly in for respiration without opening the mouth) - Males in most species have projections of the anal fin called claspers that are used in copulation