The whitetail deerusing the word to designate a group of deer which can neither be called a subgenus with many species, nor a widely spread species diverging into many varietiesis the only North American species which has spread down into and has outlying representatives in South America.

The above character has therefore been drawn up, and ichthyologists may consider Assiculus, either as a proper generic form, or as merely a subgenus or subdivision of Pseudochromis, with an extended character, according to their different views of arrangement.