536 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxii. 



PISANIA FORTIS Carpenter var. ANGULATA, new variety. 

 Plate L, figs. 6 and 7. 



Description. — Shell fusiform, short; spire elevated; apex subacute 

 to subangular, whorls angular, about three-fourths of the whorl being 

 below the angle; body whorl below the angle quite uniforml}^ convex. 

 The surface sculpture varies considerably in individual specimens; in 

 the type the sculpture of the body whorl consists of ten equal sub- 

 equidistant rounded subrugose spiral ridges, each interspace being- 

 ornamented by one less prominent but slightly more rugose revolving 

 line on each side of which still finer lines may often be distinguished; 

 above the angle are live revolving lines, less prominent than those on 

 the lower part of the whorl, but alternating in relative size in the same 

 manner as the latter. The penultimate and earlier whorls have about 

 eleven longitudinal waves or low ribs which become most prominent 

 on the angle of the whorls, forming more or less prominent nodes. 

 A prominent sutural riblet is developed on the posterior portion of 

 the whorl. Suture wavy, appressed, distinct. Aperture pyriform; 

 outer lip unknown but probably denticulate. Umbilicus subperforate. 



Dimensions. — Longitude (restored), about 5.5 mm. ; latitude, 29 mm. ; 

 body whorl, 43 mm.; aperture, 30 mm.; deflection, about 62*^. 



Notes. — This variety differs from the typical Pisania fortis Car- 

 penter, in being broader and in having prominently angulated whorls. 

 The revolving lines in the former are also usually weaker than in the 

 t3'pical form. 



Ty2M.—C?it. No. 164959, U.S.N.M. 



Locality.— ^Xsm^VQ Canyon, near Union Oil Company's wells, 2i 

 miles southeast of Newhall, Los Angeles County, California. (Ralph 

 Arnold. ) 



Horizon. — Middle Fernando formation (lower Pliocene). Known 

 only from the type locality where several specimens were found. 



PRIENE OREGONENSIS Redfield var. ANGELENSIS, new variety. 



Plate L, fig. 11. 



Description. — Shell averaging between 80 mm. and 100 mm. in 

 length, fusiform; spire elevated; apex blunt; whorls eight to ten, con- 

 vex; sculpture of whorls consists of about twenty-four low and rather 

 narrow longitudinal ridges and about seven less prominent, inequidis- 

 tant spiral ridges, the whole giving the surface a somewhat subdued 

 cancellated appearance; the spiral ridges are augmented by numerous 

 fine spiral stri«; suture deeply impressed, somewhat wavy; faint dis- 

 continuous, rounded varices in some specimens; aperture subovate; 

 outer lip not thickened; canal long, narrow, recurved. 



