DESCRIPTION OF A FOSSIL SPECIES OF SEBASTODES. 
BY CARL H. EIGENMANN. 
During half an hour’s search in a bed of Tertiary fossils at Port 
Harford, Cal., a comparatively large number of fish remains were 
discovered. They consisted mostly of isolated, and in many cases 
fragmentary, bones, mixed with the remains of mammals, birds, 
crustaceans, radiates and mollusks. 
Among the fish remains is the lower limb of the preopercle of a 
Sebastodes, or some related genus. It represents a fish about .30 m. 
long. The three lower preopercular spines are of about equal size, 
and the distance between them is about equal. They are all 
directed downward and backward. The ridge between the exposed 
portion of the limb and that portion serving for the attachment of 
the muscles of the cheek, is less marked than in living species, and 
the latter surface is shallower and broader. 
Compared with living species of Sebastodes this species most 
_ resembles vosaceus; the preopercle is, however, much heavier. 
The openings into the mucous canal differ from all living species 
very strikingly. There are three such openings, or pits, on the _ 
anterior half of the first spine, decreasing in size backward (the 
posterior is quite small and not in view in the accompanying figure). 
There is a large pit between the first and second, and another be- 
tween the second and third spines, and two smaller ones on the 
anterior half of the second spine. The species may stand as Sedas- 
todes (?) rose. 
I have named this species for Rosa S. Eigenmann. 
Other fossils from the same locality are 1, Strongylocentrotus pur- 
puratus A. Ag.; 2 Scutella gibbsii Rémond ; 3, Cancer brewerii 
Gabb; 4, Cancer antennarius Stimpson; 5, Cancer magister Dana. 
As far as I am aware, Nos. I, 4 and 5 of the above have not been 
found as fossils before. 
