141 a. S. EXTENSA.
Differs from S. varia in being smaller, much deeper reddish buff in undertinting, markings decidedly red-brown, without glaucous overwashing; aperture smaller. Abundant living in the church-yard of the Baptist Chapel on St. James St. East Nassau, on the west and south side of this street to Kemp's Road, but, except about the chapel, many were dead. 23,000 were collected, but out of this number only about 3000 were living. 5 cts." (Maynard, 1924c:2-3)