The Geography of Afghanistan. Major Bodies of Water: Afghanistan is a landlocked and fairly dry country. Major rivers include Kabul River, Amu Darya, Harirud River, and the Helmand River. Lakes include Lake Zarkol, Kajaki Reservoir, the five lakes of Band-e Amir, and the Sardeh Dam.
Phylum Chordata - lancelets,hagfish ,lampreys ,fishes ,sharks ,amphibians,reptiles ,birds ,mammals
The vertebrates traditionally include the hagfish, which do not have proper vertebrae, though their closest living relatives, the lampreys, do. Hagfish do, however, possess a cranium. For this reason, the vertebrate subphylum is sometimes referred to as  Craniata  when discussing morphology.he central nervous system of vertebrates is based on a hollow nerve cord running along the length of the animal. Of particular importance and unique to vertebrates is the presence of neural crest cells.