from Wiktionary, Creative Commons Attribution/Share-Alike License.
- proper noun A taxonomic
parvorderwithin the infraorder Simiiformes— the New World monkeys.
Sorry, no etymologies found.
Platyrrhini proper, the only observation with which I am acquainted is due to Pansch, who found in the brain of a foetal Cebus Apella, in addition to the sylvian fissure and the deep calcarine fissure, only a very shallow antero-temporal fissure (scissure parallele of Gratiolet).
But, it by no means follows, that the rule which may hold good for the Platyrrhini extends to the Catarrhini.
Now this fact, taken together with the circumstance that the antero-temporal sulcus is present in such Platyrrhini as the Saimiri, which present mere traces of sulci on the anterior half of the exterior of the cerebral hemispheres, or none at all, undoubtedly, so far as it goes, affords fair evidence in favour of Gratiolet's hypothesis, that the posterior sulci appear before the anterior, in the brains of the
[[Haplorrhini]] splits into infraorders [[New World monkey | Platyrrhini]]
[[Haplorrhini]] splits into infraorders [[New World monkey | Platyrrhini]] and [[Catarrhini]].