1878.] Zoölogy. 397 
seas, but it is sometimes brought to these shores by storms. In 
the Indian Ocean I have seen it in calm weather sailing on the 
surface, as described by old writers, but discredited by closet 
naturalists of these days.—S. C. C. Halifax Inlet, Florida, Feb. 
17, 1878. From Forest and Stream, March 21, 1878. 
The Naturalist, Vol. XI, p. 243, contains a notice by S. Lock- 
wood, on the occurrence of the paper nautilus on the New Jer- 
sey shore. 
BUCCINUM UNDATUM Linné.—I have received many interesting 
specimens of this shell from the lobster-men at this town (Ston- 
ington Conn). They were brought up from a depth of ten to 
nineteen fathoms in lobster-pots attached to the “bait.” The 
shells are very fine, with apex absolutely perfect; and in nearl 
every instance the entire shell is heavily incrusted with Zrthotham- 
nion polymorphum. I have never before observed this nullipore 
on shells, though it is common all along this coast on rocks and 
stones. The incrustation has prevented the erosion of the shell 
and when removed discioses an almost perfect epidermis. The 
locality of the B. undatum obtained is off Stonington, at the 
eastern extremity of Fisher’s Island, where they occur in consid- 
erable numbers. The locomotive powers of B. undatum must be 
quite remarkable, since, in one instance, a lobster-man took be- 
tween thirty and forty from one pot. These, like //yxassa obsoleta, 
are seemingly attracted, oftentimes, from a distance, by the bait 
in the 
TRACHYDERMON (LEPTOCHITON) RUBER Carpenter —Four speci- 
mens of this species were found on the &. undatum taken off 
Fisher’s Island. Its natural habitat is “almost exclusively on and 
among rocks.” Its presence on these shells may serve, in some 
measure, to explain their distribution. The chiton must go 
where the shell goes, but at any point may detach itself or be 
rubbed off and so become “naturalized” at that point. The 
chitons are on the shell, doubtless, because the nullipore with 
which it is incrusted forms their natural food. Their color is 
nearly that of the living Zithothamnion, though one specimen is a 
very dark brown. Their color is, therefore, protective. —R. Ells- 
worth Call. 
Nestinc HABITS OF THE CANADA FLycATCHER.—I have submitted _ 
the eggs referred to in the “ NATURALIST,” Vol. XI, p. 565, under 
the heading—* Red-bellied Nuthatch (Sitta Canadensis)? nest- 
ing on the’ ground,” to Dr. Brewer, for examination, and after 
comparing them with the various similar specimens in his cabinet, 
he thinks that they should be referred to the “ Canada Flycatcher” 
(Myiodioctes canadensis), though even then he would retain the 
obnoxious interrogation point, as in some respects, the described 
nest is much unlike the typical nest of this bird—/rank H. Nut- 
ler, 
