112 THE NAUTILUS. 
Tapes staminea Contr. 
Placunanomia macroschisma Dh. 
Katherina tunicata Wood, 
and two species that I have not located as yet. 
At low tide Tritonium oregonense is very plentiful and busy filling 
their egg cases. Out of the hundreds seen, but one miniature specimen 
possessed the beautiful epidermis that characterizes the species; the rest 
were eroded so badly that in some cases the body whorl was alone whole. 
At the high tide mark Littorinas were so thick that both hands 
could be scooped up full, and the color varieties were all there. 
Under the stones at near low tide the beautiful Eulimas were so 
plentiful that under one stone, not larger than a dinner plate, [ gathered 
over 100; but the tide would not wait for me, so I had to leave this 
rich field before I had half explored it. The steamer had finished 
coaling ; so I bid adieu to the northern country with much regret. 
I wish to thank Messrs. Dall, Clapp and Pilsbry for straightening 
out the material which I brought down. 
we me 
UROSALPINX CINEREUS IN SAN FRANCISCO Bay. 
In Tue Naurttiuus for June, 1894, 1 cailed attention to the oceur- 
rence of the eastern “oyster drill,’ Urosalpinx cinereus (Fusus 
cinereus Say), on the beds of transplanted eastern oysters near Bel- 
mont, as announced in Mr. Charles H. Townsend’s paper* on “ The 
Oyster Resources and Oyster Fishery of the Pacific Coast.’’ The 
Belmont beds are on the western shore of the bay on the flats of San 
Mateo county. Within a few days I have received from Mr. Henry 
Hemphill several examples of this familiar form, collected by him on 
the old oyster beds on the eastern shore or flats of Alameda county. 
In course of time this species will no doubt be found elsewhere, and 
become numerous on both sides of the southerly portion of San Fran- 
cisco bay. Mr. Hemphill, it may be remembered, was the first to 
detect the presence of Mya arenaria hereabout (named by Dr. New- 
comb at the time M. Hemphilli). It is not unlikely the mussel so 
frequently found adhering to the eastern oysters, Mytilus hamatus 
Say, will sooner or later turn up in the bay region, and Mr. Hemp- 
hill may be the first to find it. 
Rosert E. C. STEARNS. 
Los ANGELES, CAL., December 7, 1898. 
* Report of the U.S. Fish Commissioner, ete., 1889-91, published in March, 1893 
ee en ee 
