A casual notice of a Parthian monarch in a late writer may supply the gap, either wholly or in part. Lucian speaks of a certain Mnasciras as a Parthian king, who died at the advanced age of ninety-six. As there is no other place in the Parthian history at which the succession is doubtful, and as no such name as Mnascris occurs elsewhere in the list, it seems necessary, unless we reject Lucian’s authority altogether, to insert this monarch here. We cannot say, however, how long he reigned, or ascribe to him any particular actions; nor can we say definitely what king he either succeeded or preceded. It is possible that his reign covered the entire interval between Mithridates II. and Sanatroeces; it is possible, on the other hand, that he had successors and predecessors, whose names have altogether perished. The expression used by the epitomizer of Trogus, and a few words dropped by Plutarch, render it probable that about this time there were contentions between various members of the Arsacid family which issued in actual civil war. Such contentions are a marked feature of the later history; and, according to Plutarch, they commenced at this period. We may suspect, from the great age of two of the monarchs chosen, that the Arsacid stock was now very limited in number, that it offered no candidates for the throne whose claims were indisputable, and that consequently at each vacancy there was a division of opinion among the “Megistanes,” which led to the claimants making appeal, if the election went against them, to the arbitrament of arms. The dark time of Parthian history is terminated by the accession--probably in B.C. 76--of the king above mentioned as known by the three names of Sanatroeces, Sinatroces, and Sintricus. The form, Sanatroeces, which appears upon the Paithian coins, is on that account to be preferred. The king so called had reached when elected the advanced age of eighty. It may be suspected that he was a son of the sixth Arsaces (Mithridates I.), and consequently a brother of Phraates II. He had, perhaps, been made prisoner by that Scythians in the course of the disastrous war waged by that monarch, and had been retained in captivity for above fifty years. At any rate, he appears to have been indebted to the Scythians in some measure for the crown which he acquired so tardily, his enjoyment of it having been secured by the help of a contingent of troops furnished to him by the Scythian tribe of the Sacauracae.