338 Zoological Society :— 
6. SEBASTES ELONGATUS, Ayres, Proc. Cal. Acad. Nat. Sci. ii 
p. 26, fig. 9. 
Nasal spine sharp, quite prominent ; anterior supraorbital well 
marked, sharp ; posterior supraorbital forming a crest quite sufficient 
to leave an intraorbital fossa, and terminating in a sharp spine; 
postorbital just discernible ; occipital ridge smooth, low, with a free 
point. Opercular, preopercular, humeral, and scapular spines pro- 
minent and sharp. Inferior angle of operculum and posterior angle 
of suboperculum spinous. Second anal spine higher and much 
stouter than the third. Spinous dorsal about equal in height with 
the soft portion. 
ss 
S. elongatus is readily distinguished from all the other species of 
true Sebastes by its extreme slenderness, in which respect it closely 
resembles Sebastodes paucispinis, sometimes even surpassing it. The 
proportion of depth to length varies from about one-fifth to nearly 
one-fourth. The figure (given herewith) represents the first speci- 
men found, which was as slender as any I have seen. In the figure 
a spine is inadvertently shown on the lower part of the operculum, 
while the scapular is omitted ; the knobbed projection of the lower 
Jaw is not sufficiently indicated. The colours are well stated in the 
original description. 
The species appears to be not at all common, few being brought 
to the markets. They seldom exceed a pound in weight. 
SEBASTODES. 
In the species of this division no diagnostic characters can be 
drawn from the spines of the head, as so little difference is found in 
them. In all, the nasal, supraorbital, and occipital spines are barely 
discernible, or cannot be traced at all; the five preopercular are 
quite strongly developed, smooth, and sharp (except that in S. pawez- 
spinis the lower one is a blunt projection, with one, and sometimes 
two sharp points) ; the opercular two are long and sharp; the hu- 
