•J(j-1 CALll'UKNI.V At'ADKMV DF SC'IKNCKS. 



275. Scala hemphilli Dull. 



Sill/a hemphilli Dali., Proc. U. S. Nat. Mus., Vol. I, 1878, p. 16. Coofi-r, ^\^\ Ami. Rcpl. Cal. 

 St. Min., 1888, p. 263. 



Shell resemblintj robust 5". h'ytcla; nine to twelve varices, coronated behind near suture: 

 surface of whorls beneath the varices longitudinally delicately scul])lured with alternate grooves and 

 riblets. Dctlcction 30 degrees. 



Distiiiguisliablc from S. hellastrinta by less proniiiicnt spiral sculpture and by 

 a less deflection; from other members of the genus found here by its deflection and 

 the spiral sculpture. The specimen described was identified by Dr. Dali. 



One immature specimen from the upper San Pedro series of San Pedro. 



Pleistocene. — San Diego (Dali): San Pedro (Arnold). 

 Pliocene. — San Diego well (Dali). 



276. Scala hindsii Carpenter. 



Scalaria hindsii Cpr., Proc. Zool. Soc, 1856, p. 165; Brit. Assn. Rcpt., 1856, p. 336; 1863, p. 660. 



Keep, West Coast Shells, p. 49, fig. 31, 1892, =3". subcoronata Cpr., {fide Cooper, Bull. 



No. 4, Cal. St. Min. Bureau, Part 3, 1894, p. 31). 

 Scala hindsii CpR., Williamson, Proc. U. S. Nat. Mus., Vol. XV, 1892, p. 209. 



Shell small, turreted, thin; whorls eight, evenly convex; varices eight to twelve, sharp, thin, 

 sometimes reflexed, very prominently coronated just anterior to suture; suture deep, distinct; aperture 

 subcircular; lip slightly thickened; inner lip slightly incrusted. 



Dimensions. — Long. 11.5 mm.; lat. 5.2 mm.; defl. 27 degrees. 



Distinguishable from S. indianorum by smaller and thinner shell, fewer, 

 thinner, and more coronated varices, and deeper suture; distinguishable from 

 S. tincta by smaller shell, and fewer and more coronate varices; di.stinguishable from 

 S. crebricostata by fewer and more coronate varices. Several specimens were identified 

 by Dr. Dali. 



Hare in upper San Pedro series at San Pedro, Deadman Island, Crawfish 

 George's, and Los Cerritos; also reported from lower San Pedro series at Deadman 

 Island and San Pedro. 



Living. — Santa Barbara (Jewett): San Pedro (Williamson): Panama 

 (Carpenter). 



Pleistocene. — San Pedro (Arnold). 



277. Scala indianorum Carpenter. 



I'LATK V, Flu 4. 



Scala indianorum Cpr., Brit. Assn. Rept., 1863, p. 660; Ann. & Mag. Nat. Hist., 3rd Ser., Vol. XV, 

 1865, p. 31. Tryon, Man. Conch., Vol. IX, p. 70, PI. XIV, fig. 48, 1887. Cooper, 

 7th Ann. Rept. Cal. St. Min , 1888, p. 263. Keep, West Coast Shells, p. 50, 1892. 



Scala indianorum Cpr., Williamson, Proc. U. S. Nat. Mus., Vol. XV, 1892, p. 210. 



