Lewis & Short

Rauduscŭla or Rauduscŭlāna porta, a gate at Rome, according to the ancient division of Servius Tullius, between the P. Naevia and Lavernalis, Varr. L. L. 5, § 163 Müll.; Fest. s. h. v. p. 274 ib.; Val. Max. 5, 6, 3.