9.)—Acutely ovate, ventricose ; very — 
iainouke surface with concentric lines, whic 
? smooth aud regular; aregaiegel side somewhat cuneiform ; LinteMiee 
extremity acutely rounded; basai margin rounded. 
number of specimens were together in a small fragment of rock, 
all of which were much smaller than the one selected to figure. 
Fig. 7. Wi 8. 
Nu baile pent, (fig: 10. )—Ovate soutey ventricose ; anterior side ve- 
ome obtuse ; ligament margin ¢ concave e; posterior side rostrated, 
margin rounded. 
t similar in outline to the Birvioin miocene NV. acuta, but 
maxtor anterior side. It isa cast, and the character oF the 
own. 
sa, (fig. 11. )—Nerrow-eylindvoa ; margin of labrum 
y devant above the apex; spire slightly raised above 
am i ‘ed. 
riform, thin, with approximate promi- 
revolving ‘aed reticulated with minute longitudinal 
very short, conical; upper portion n of body whorl regu- 
Fig. 13. i 
Fusus oregonensis, (fig. 1 13. sig ict aks with unequal prominent re-. 
volving lines, a few of which are considerabl y larger than the others 
on the upper pores of the body whorl ; they are also cot coarser towar 
the base, and alternated in size ; shoulder with @ 
one of the uy strize on the body Ww Be 
Prominent line margins the suture ; spire conical, #] 
lated and tuberculate fie 
Solen curius, (fig. 14. )—Slightly curved, short, ¢ conve 
j at the extremities; anterior margin very © 
t 
MOSS 4 = 
-UROSTH HENES, (nov. gen.j—Allied to Palewoniscus.—Body elon- 
gated, prolonged into tastes lobe of tail nearly to apex. Anal fin trian- 
BR eines " 
* Continued from of this J 151. Figures will be given in ebn. 
nection with fom vol ig of hi Jornal : * 
