NATURAL HISTORY MISCELLANY. 757 
Leaving, therefore, my military companions at San Diego, I travelled 
o San Francisco by land, picking up about forty species of Mollusca at 
points along the southern coas 
My preparations for dredging, determining my collections, and describ- 
w bra 
h 
26th, ponens and SOR E eae shore chiefly Mollusca, but not 
lecting other animals. The additional species collected were thirty- jak 
of de. one gare 2d. seventy-five Mollusca (thirty new spe- 
glaucus Cope), it was impossible to obtain measurements and 
of them as they were always cut up while floating, pes the mutilated 
carcasses when washed ashore were deprived of ‘flukes " and other essen- 
tial parts, besides smelling so strong that the odor for gm was almost 
unbearable. 
The land mammalia were chiefly very distinct from those of Fort 
Mojave, as is naturally to be expected in comparing a well-wooded, fertile 
region with an almost barren desert. The rizzly Bear was quite com- 
quadrupeds, well known as Californian, are doubtless to be obtained by 
peas and more thorough search than I could make. I got two small 
s, the representatives of species to be found at Fort Mojave, viz: 
the poca Wood-rat (Neotoma fuscipes), and Wood-mouse (Hespero 
mys gp also one of a genus not found there, ‘cap ead 
Field-m ola edax 
The sad ASSA land birds were the Vulture (Cathartes Califor- 
nianus), the Pigmy Nuthatch (Sitta pigmea), western variety of the Yel- 
e i tris 
na 
Humming-bird (Althis Anna), Heermann's Song Sparr w (M. Heermanni), 
Californian and Brown Finches (Pipilo megalonyx a fuscus), while a 
few seen there only in winter or spring were here breeding, viz: the 
Black Pewee (Sayornis nigricans) Dwarf ida (Turdus nanus), West- 
