AUNOI.n — Till'. I'AI.l'.ON I'Ol.lHiV WD S TltATKiliA I'll Y Ol' SAN I'KDKO. 255 



l\:iir ill llic IdWfi' S:in I'cdrii sorics :il San I'cilid aii<l Dcadiiian Island. 

 Fdiiiid also ill ilir rifisioc-i'iir at Santa Harliani. Tlie spcc-iiiU'ii li<;iiiid is tidin 

 tlu' lower San l\'di-o SL'ries at Dfadniaii Island, and is now in tlu- colicftioii of 

 Delos AriiuKl. 



Livbiij. — Calaiina Island; Santa Hariiara ('liaiiiud (CoopLT). 



Pleistocene. — Santa IJarliara ((iabli; Arnold): San Pediu (Arnold). 



259. Ocinebra foveolata Hinds. 



Mtue.x foveolata Hds., Proc. Zo<il. Soc, 1843, P- '27; Voyage Sulphur, p. 9, No. 13, PI. Ill, fijjs. 



15, 16, 1S44. Cpk., Brit. Assn. Rept., 1S56, p. 205. Trvon, Man. Conch., Vol. II, 



p. 125, PI. XXXVIII, fig. 465, 1880. 

 Muiicidea foveolala Hds., Cuoi'kk, jtli Ann. Rept. Cal. St. Min., 1888, p. 252. 

 Ocinebra foveolata Hds., Williamson, Proc. U. S. Nat. Mu.s., Vol. XV, 1892, ji. 215. 



Shell of medium size, fusiform; si)ire elevated; whorls si.x, angulated, with six or seven 

 prominent, rounded, transverse ril)s that rise to the prominence of nodes on the angle of the whorl; 

 surface ornamented with numerous clear-cut, rather squarish, raised hncs, and incremental lirula' in 

 the interspaces; suture deeply ap|)iessed, wavy; aperture subpyriform; outer lip thickened, denticu- 

 lated; inner lip incrusted, smooth; canal long, narrow, slightly curved; columella not perceptibly 

 widened; umbilicus subperforate. 



Dimensions. — Long. 35 mm.; kit. 17 mm.; body-whorl 28 mm.; aperture, including canal, 

 20 mm.; canal 9 mm.; detl. 60 degrees. 



Distiiigtiisliablo l)_v the broad, prominent, transverse ridges which rise to 

 rounded nodes rather than to sharp points, as in .some other members of the genus, 

 and by the deep suture and rather long, narrow form of the shell. Specimen iilenti- 

 fied by Dr. Dall. Speeimeiis of 0. ptrihf in the State Museum collection of fossils at 

 Berkeley are ial)eled ''0. foveolata." 



Rare in upper San Pedro series of San Pedro; one imperfect specimen found. 



Living. — Baulinas Bay to Lower California (Cooper). 



Pleistocene. — Santa Barbara; San Pedro (Cooper): San Pedro (Arnold). 



260. Ocinebra interfossa Carpenter. 



Odnedra in/er/ossa Cpr., Brit. Assn. Rept., 1863, p. 663. Gabb, Pal. Cal., Vol. II, p. 70, 1869. 

 Trvon, Man. Conch., Vol. II, p. 131, PI. XXXIX, fig. 484, 1880. Cooper, 7th Ann. 

 Rept. Cal. St. Min., 1888, p. 254. Keep, West Coast Shells, p. 24, fig. 5, 1892. 

 Williamson, Proc. U. S. Nat. Mus., Vol. XV, 1892, p. 215. 



Shell small, broadly fusiform; spire elevated, subacute; whorls five or six, angulated above; 

 surface sculptured with numerous transverse and spiral ridges of nearly equal prominence, giving the 

 surface a latticed appearance; suture deeply impressed, distinct; aperture subovate; outer lip 

 thickened, slightly denticulated; inner lip smooth, incrusted; canal short, generally covered; 

 columella twisted, squamose; umbilicus subperforate. 



Dimensions. — Long. 13 mm.; lat. 7.2 mm.; body-whorl 10 mm.; aperture, including canal, 

 7 5 mm.; can.d 2.5 mm.; defl. 55 degrees. 



Distinguishable from other members of genus by strong, latticed sculpture, 

 short canal and small size. Identilied by Dr. J)all. 



