Potamon fluviatile as well as on the island of Sicily. Although it used to be found as far north as Lake Garda, "P. fluviatile" no longer occurs north of the River Po. In 1997 a population of "P. fluviatile" was discovered under the ruins of Trajan's Forum in the heart of Rome, living in canals built by the Etruscans which connect to the "Cloaca Maxima". Based on a genetic analysis, which demonstrated that these crabs were similar to those in Greece, researchers believe that they had been brought by the Greeks before the founding of the city, some 3000 years ago. The
Something Is Out There worsened. The series was canceled after only six one-hour episodes were broadcast, with two additional episodes produced but not broadcast at the time except in isolated cases in the US. Due to its short run, the series is not often found in syndication, but the Sci-Fi Channel did include it as part of a rotation of short-lived series, including broadcasting the previously unaired episodes. An edited down version of the miniseries has aired as a syndicated television movie. Originally conceived by Frank Lupo in 1987 with the title "Invader", NBC ordered a four-hour mini-series for broadcast on May 8, 1988