THE NAUTILUS. 69 
place within the egg-capsule, at an early stage of the creature’s ex- 
istence, for no such nucleus is attached to any of the specimens in 
the egg-capsules at hand which are of the same size as the shells fig- 
ured by Mr. Pilsbry.” 
In conclusion it should be stated that Fusus proboscidiferus has 
been made the type of Megalatractus, a subgenus of Hemifusus 
(Semifusus Fischer !), by Fischer. There are good reasons for giv- 
ing the group generic rank. It certainly does not belong to Fusus, 
the embryonic whorls being very different from those of the typical 
species of that genus. Neither can it be referred to Hemifusus as 
Fischer has done.’ Perostylus will, of course, become a synonym of 
Fischer’s group. 
CATALOGUE OF LAND SHELLS OF LONG ISLAND, N. Y. 
BY HENRY PRIME. 
The time in making this collection embraces a number of years 
and I think it to be rather complete, having left no stone (or log) 
unturned in searching for the species. Mesodon albolabris and thy- 
roides are dwarfed, and Tachea nemoralis does not compare as to 
size with those from Europe. The sea air may have something to 
do with this. The soil is of a sandy nature, as a rule, not adapted 
to the growth of sand snails. 
Hyalinia arborea Say. Coldspring; Greenport; East Hamp- 
ton; Huntington; Prospect Park, Brooklyn; Astoria; Myrtle 
Ave. Park, Brooklyn; Lloyd’s Neck ;- Centerport. 
Hyalinia binneyana Morse. Huntington. 
Hyalinia cellaria Mill. Astoria. 
Hyalinia indentata Say. Huntington. 
Hyalinia milium Mors>. Huntington. 
Hyalinia nitida Mill. New Lotts. 
Limax agrestis Mill. Jamaica; Brooklyn; Huntington ; Cen- 
terport. | 
Limax campestris Binn. Lloyd’s Neck; Whitestone; Center- 
port. 
1 Manuel de Conch. p. 623. 
