80 THE NAUTILUS. 
LEPTINARIA LIVINGSTONENSIS, Nl. Sp. 
The shell is imperforate, oblong-conic, the length twice the 
diameter, pale yellow, composed of 6 moderately convex whorls. 
Apex rather obtuse, surface glossy, coarsely but weakly striate. 
The sharp outer lip is strongly arched forward at its upper 
third. Columellar plait strong, dividing the columellar margin 
into two arcs, the lower one slightly shorter and deeper. Par- 
ietal lamella present in the embryos of 14 whorls. It is quite 
strongly developed in some shells of 6 mm. long, wanting in 
others. In older shells it becomes very low, and not quite one- 
fourth of a whorl long; or in others it disappears entirely. 
Length 9.5, diam. 4.7, aperture 4.5 mm. (lamella low). 
Length 11, diam. 5, aperture 5 mm. (lamella minute). 
Found in rubbish about the city of Livingston, Guatemala, 
with Subulina octona, taken February 19, 1913. This shell is 
about the same size as L. tamaulipensis, but differs from that 
species by having a parietal lamella and an imperforate umbil- 
ical region. The last whorl is less enlarged than in L. lamellata, 
L. elise or LL. convoluta, which resemble this species in being 
imperforate with a lamellate parietal wall. 
The small lot taken in 1913 seemed divisible into two species, 
according to whether a parietal lamella was present or not, but 
in the abundant series collected on the second trip, it appears 
that the lamella is variable, being present in many but not all 
immature shells, but always very low or wanting in the iarge 
ones, 
SOME NOTES ON PHILOMYCUS. 
BY V. STERKI. 
In Ohio we had known only P. (Tebennophorus) carolinensis 
Bose. Then a few dorsalis Binney were found here and there. 
Some years ago, near Chippewa Lake, Medina Co., I found two 
specimens of an entirely distinct species, as listed in the Ohio 
catalogue; the genitals, etc., remain to be examined. The slug 
may be the same as P. neni ylvanicus Pils., but closer hi ab 
son is necessary. 
