Roads ran hence to Olbia by the east coast, and through the centre of the island, to Othoca (Oristano) direct, and thence to Olbia (probably the most frequented route), through the mining district to Sulci and along the south and west coasts to Othoca.
The lines of cardinal importance are (I) the rasceta or cross sulci, which isolate the hand from the forearm at the wrist, and which are the flexion folds between the looser forearm skin and that tied down to the fascia above the level of the anterior annular ligament.
The sulci are emphasized because the subcutaneous fat, which is copious in order to pad the skin for the purpose of firmness of holding„ being restricted to the intervals between the lines along which the skin is tied down, makes these intervals project, and these are the monticuli.
The three middle metatarsals become fused together into a cannon bone; the upper part of the third middle metatarsal projects behind and forms the so-called hypotarsus, which in various ways, characteristic of the different groups of birds (with one or more sulci, grooved or perforated), acts as guiding pulley to the tendons of the flexor muscles of the toes.
The cities which they founded - Cornus, Tharros, Sulci, Nora, Caralesare all on the coast of the island, and it is doubtful to what extent they penetrated into the interior.