Parlor palm nickname comes from Chamaedorea elegans being able to survive the more dim, dry air of a parlor in the Victorian age. IDK if that also applies to C. cataractarum (cat palm,) but they are similar in other ways, so probably.
Cat Palm (Chamaedorea cataractarum)
The pot looks small to hold the roots of so many individuals. The individuals are very close together, and will be crammed as they grow. If this was my pot, I would repot as soon as practical, and separate the plants by at least an inch.
