ARNOLD — THE PALEONTOLOOY AND STRATIGRAPHY OF SAN PEDRO. 209 



Ventiir;i: and at Spanish Right, 8an Diego. The spcciiiuMi ligiiied is I'loin the upper 

 San IVdro serie.'^ at San Pedni, and is now in the collection of Delos Arnold. 



Living. — Gulf of California; Ecuador (Carpenter). 



Pleistocene. — San rcdro; Ventura; San Diego (Arnold). 



283. Eulima micans Carpenter. 



Pl.ATK IX, Flli. 12. 



Eulima micans Cpk., Brit. Assn. Rept., 1863, p. 659. Reeve, Conch. Icon., p. 33, 1865. Tryon, 

 Man. Conch., Vol. VIII, p. 272, PI. LXIV, figs. 29, 30, 1886. Cooper, 7th Ann. Rept. 

 Cal. St. Min., 1888, p. 240. Keep, West Coast Shells, ]>. 50, fijj. 32, 1892. Williamson, 

 Proc. U. S. Nat. Mus., Vol. XV, 1892, p. 209. 



Shell small, turreted, glossy; ape.x acute; whorls ten, flat; body-whorl convex; suture 

 distinct, not impressed; aperture elongate-ovate; outer lip thin, rather arcuate; inner li]) slightly 

 incrusted. 



Dimensio7ts. — Long. 12 mm.; lat 3.2 mm.; defl. 25 degrees. 



Distinguishable from A", falcatn by straight spire and less bulging outer li]>; 

 distinguishable from E. hastata by even convexity of body-whorl. The specimens 

 described were identified by Dr. Dall. 



Found in the lower San Pedro series at Deadman Island and San Pedro, and 

 in the upi)er San Pedro series at Crawfish George's, Los Cerritos, and San Pedro. 

 The specimen figured is from the lower San Pedro series at Deadman Island, and is 

 now in the collection of Delos Arnold. Found also in the Pleistocene at Barlow's 

 rancli, Ventura, and at Spanish Bight, San Diego. 



Living. — Straits of Fuca to San Diego (Cooper). 



Pleistocene. — Santa Barbara to San Diego (Cooper): San Pedro; Ventura; 

 San Diego (Arnold). 



Family LXIV. PYRAMIDELLlDiE.' 



Genus Turbonilla Risso. 



Turbonilla Risso, Hist. Nat. Eur. Merid., Vol. IV, p. 224, 1826. Type, Turbo7iilla lypica Dall & 

 Bartsch, =T7irbo7iil/a plicalula Risso, 1826, non Turbo (^=Turbo>ii//a) p/icatulus 

 Brocchi, 1814. 



Shell with sinistral nucleus, slender, having many whorls, with axial - or spiral sculpture, or 

 both; columella straight or twisted, usually with a single fold, which is rarely obsolete; operculum 

 horny, subspiral, with spiral strite on its outer surface. 



Animal with wide, flattened tentacles; mentum elongated, flattened, and bilobed in front; 

 foot large, short, auriculated anteriorly. 



' The portion of tbe text relatliif; to this family has been prepared, under the supervinion and wftli the aasiHtance of W. H. 

 Dall, by Paul Bart»ch, aid io the United SL-iteu National Muaenin. 



* Sculpture following the direction of the coil of the whorls is in tlipse dia^'noses referred to as spiral. That at riglit anKlea to 

 ttae spiral sculpture, or in general parallelism with the axis of the sliell, is called axial. An endeavor ha.'t been made to include .all the 

 Pleistocene species known from California, some of which, though foTind at San Diego, have not yet been obtained at Sau Pedro. 



