The braincase volume averaged about , comparable to gracile australopithecines, but smaller than "Homo". Most species of "Australopithecus" were diminutive and gracile, usually standing tall. Many bipedal dinosaurs possessed gracile leg bones with a short thigh relative to calf length. Slender lorises are recognised for having extremely gracile limbs and extreme stereoscopic vision. Aphanosauria is a Triassic group of gracile carnivorous quadrupeds which was recognized in 2017. These fasciculi end in rounded elevations known as the gracile and the cuneate tubercles. The bonobo is commonly considered to be more gracile than the common chimpanzee. Gracility is slenderness, the condition of being gracile, which means slender. This genus is also referred to as "gracile" capuchins. They show a typical buthid habitus with gracile pedipalp chelae and a moderately thickened metasoma. A known parasite is the tapeworm "Lithobothrium gracile", which infests the shark's spiral valve intestine. It synapses with an interneuron in the gracile nucleus. Two morphs, a robust and a gracile one, were present in the fossil material. The shafts of the bones are often thin (gracile), and become thinner during growth. The specific name means "gracile" in Latin.