A. EF. Verrill—The Bermuda Islands; Geology. 171 
Carychium bermudense Gulick. 
Op. cit., p. 415, pl. xxxvi, figs. 11, 12. 
FIGURES d4a, 54b, TYPE. 
This extinct species has about five convex whorls with the surface 
finely striate, corneous white. Aperture oblique, with a broadly 
expanded reflexed lip, thickened within, and with a slight promi- 
nence just above the middle. Columellar lamella minute and deeply 
situated. Diameter, 0.9"™; height, 1.8™™. 
We took several good specimens from fine sand found in the 
interior of the shells of Pecilozonites Nelsoni from road-cut near 
Bailey Bay. It was associated with the two preceding and other 
species. It also occurred, chiefly as casts, with several other species, 
in a red-clay breccia from the west shore of Castle Harbor. Gulick 
found it common in the red-clay deposits at his stations 806 and 807, 
and in the sands at station 818. He also records it from the Paget 
sands, stations 808, 809. It is not known to be living. 
Succinea somersensis sp. nov. 
Succinea bermudensis (pars) Gulick, op. cit., 1904, p. 421 (non Pfeiffer). 
The ancient form, from the Walsingham formation, seems to be 
distinct from the recent species, which may have been a modern 
importation from the West Indies.* 
The fossil species is larger and stouter—usually 12 to 13™™ long 
and about 7™™ in diameter; length of the last whorl about 9™™. It 
is pretty regularly ovate, the breadth more than half the length. 
Surface nearly smooth, but showing delicate lines of growth. Spire 
small and acute. The shell is thicker than in the living form. Our 
largest specimen is 12™™ long; 7™™ broad. 
Gulick gives for his largest example, length, 13™"; diameter, 7™™. 
It is seldom that the modern species becomes more than 10 to 11™™ 
in length, usually it is 8 to 9. Not uncommon in the Walsingham 
district. Mr. Gulick records it from his stations 806, 807, and 818. 
Whether his specimens from the sand-pits (Paget formation), at 
* The small species now living in Bermuda (see figure 70) has had several 
names. Some of the references are as follows: 
Succinea barbadensis Guilding, Zool. Journ., iii, p. 532, Supl., pl. 27, figs. 
4-6. Pilsbry, these Trans., x, p. 502. Verrill, these Trans., xi, p. 729, figs. 
80, a, b, 1902; ‘‘ The Bermuda Is.,” p. 317, figs. 80, a, b. 
Succinea bermudensis Pfeiffer, Proc. Zool. Soc. Lond., 1857, p. 110; Gulick, 
op. cit., p. 421, 1904. 
