Assertion: southern stingray | /r/HasProperty | irregular row of short spines
Facets:
value: along the center of its back
type: LOCATION
value: from other rays
type: OTHER
value: on upper surface
type: LOCATION
Source sentences:
text: Body Composition Southern stingray can be distinguished from other rays by the irregular row of short spines on upper surface along the center of its back and the low dorsal keel (a structure having a longitudinal ridge resembling a ships keel) on the tail.