Rediscovered as recently as 1992, some 150 years after it was first described (3), Hemicycla saulcyi is a medium-sized snail with a dark blue-grey body and a rather attractively marked shell, which is brown with long, irregular white lines that generally run at an angle to the axis of the shell. The shell is more or less spherical, although slightly conical, and the edge of the shell opening (peristome) extends into a well-developed lip (2) (3). Only one subspecies of this snail remains, Hemicycla saulcyi saulcyi; a second, Hemicycla saulcyi carta, is now extinct, and has only been found as fossils (2) (3) (4) (5). H. s. carta differed from H. s. saulcyi mainly in its more solid, wider shell, which had a thicker and wider lip (3).
- Length: 24 - 28 mm (2)