(Τελχίν), a son of Europs, and father of Apis, was king of Sicyon (Paus. 2.5.5). According to Apollodorus (2.1.1, &c.) Telchin, in conjunction with Thelsion, slew Apis, and was killed in consequence by Argus Panoptes.
[L.S]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890