ARNOLD — TIIK rALEONTOLOGY AN'I) STUATKiRArilY OF SAN rEDUO. 325 



Shell conoidal, thick; whorls six, slightly convex; slight shoulder posteriorly near suture; 

 ornamentation consists of numerous prominent, fine, oblique, incremental lines; suture impressed, 

 distinct; umbilicus obsolete; base Hat; obsolete spiral ornamentation; outer li|) thin, effuse. 



Dimensions. — Long. 28 mm.; lat. 28 mm.; dell. 65 degrees. 



Distinguishable ffoin ('. moHterei/i, which il resembles in shape, by more 

 convex whorls;, obsolete iimbilicns and lack of spiral ornamentation. 



This .species is rare in the Pliocene of Deadniaii Island, and in the npper 

 San Pedro series of Deadman Island and Crawfish George's. 



Living. — Cape Mendocino to San Diego (Cooper): Japan ? (Tryon). 



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



Pliocene. — San Pedro (Arnold). 



373. Chlorostoma funebrale A. Adams. 



Chlorosloma funebrale A. An., Proc. Zool. Soc, 1854, P- 3'6. Cpr., Brit. Assn. Rcpt., 1863, p. 652. 

 Gabb, Pal. Cal., Vol. II, p. 84, 1869. Cooper, 7th Ann. Kept. Cal. St. Min., 1888, 

 p. 234. Tryon, Man. Conch., Vol. XI, p. 170, PI. XXVIII, figs. 42-44, 1889. Keep, 

 West Coast Shells, p. 84, fig. 71, 1892. Williamson, Proc. U. S. Nat. Mus., Vol. XV, 

 1892, p. 200, PI. XXI, fig. 7. 



Trochus funebralis A. Ad., Fischer, Coq. Viv., \>. 173, PI. LVII, fig. 3. 



Shell conoidal, thick, black; whorls five, only .slightly convex; ornamentation of eight spiral 

 ridges crossed by fine, oblique liruke of growtii; suture liistinct; base flat; ornamentation same as 

 whorls, with the oblique incremental lines brought into [)rominence, as a rule; umbilicus obsolete; 

 outer lip effuse, with one prominent and one smaller tubercle near umbilical region; inner lip 

 incrusted. 



Dimensions. — Long. iSmm.; lat. 19 mm.; defi. 74 degrees. 



Distinguishable by black color, spiral ridges and ob.solete umbilicus. 



Rare in the lower San Pedro series of Deadman Island and San Pedro; and 

 in upper San Pedro series of Deadman Island, San Pedro, Los Cerritos, Long Beach, 

 and CrawlLsh George's. Found also in the Pleistocene at Barlow's ranch, Ventura; 

 and at Pacific Beach, San Diego. 



Living. — Sitka to San Diego (Cooper). 



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

 San Diego (Arnold). 



374. Chlorostoma funebrale A. Adams, var. subapertum Carpenter. 



Chlorostoma funebrale va.r . subaperlum Cpr., Brit. Assn. Rept., 1863, p. 652. Dall, Proc. U. S. 

 Nat. Mus.. Vol. XV, 1892, p. 200, PI. XXI, fig. 6. 



Shell resembles (J. funebrale, but differs in having more prominent spiral 

 ridges, which are usually much more rugose, and in having a [)roiuinent umbilical pit. 

 Found in same localities as C. funebrale. 



Living. — Vancouver district (Carpenter) : West Coast. 



Pleistocene. — San Pedro (Arnold). 



