ARNOLD — THE PALEONTOLOGY AND STnATIORAPHY OP SAN PEDRO. 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 fiat; obsolete spiral ornamentation; outer lip thin, effuse. 



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



Distinguishable fioin C. montereyi, wliicli it resembles in shape, liy more 

 convex whorls, obsolete iiinbilicns and lack of spiral ornamentation. 



This species is rare in the Plioceni? of Deadman Island, and in the npper 

 San IVilio series of Deadman Island and Crawfish Georjie's. 



Llc'uKj. — Cape Mendocino to San Diego (Cooper): Japan ? (Tiyon). 



Pleistocene— i^Awis. Barbara Island (Cooper): San Pedro (Arnold). 



Pliocene. — San Pedro (Arnold). 



373. Chlorostoma funebrale ^1. Adams. 



Chlorosloma funebralc A. Ar)., Proc. Zool. Soc, 1S54, y. 316. Cru., Brit. Assn. Rc|)t., 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., p. 173. PI. LVII, fig. 3. 



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

 ridges crossed by fine, oblique lirula- of growth; suture distinct; base flat; ornamentation same as 

 whorls, with the oblique incremental lines brought into prominence, as a rule; umbilicus obsolete; 

 outer lip eftuse, with one jjrominent and one smalkr tubercle near umbilical region; inner lip 

 incrusted. 



Dimensions.— \.or\g. iS mm.; lat. 19 mm.; defl. 74 degrees. 



Distinguishal)le l»y black color, spiral ridges and ob.solete umbilicus. 



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

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

 and CrawH.sh 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 .1. Adams, var. subapertum Car^en^er. 



Chlorostoma fimcbrale \z.\ . subaperiuni Cpk., Brit. Assn. Rept., 1863, p. 652. Dall, Proc. U. S. 

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



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

 ridges, which are usually much more rugose, and in having a prominent umbilical pit. 

 Found in same localities as C. funebrale. 



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



Pleistocene. — San Pedro (Arnold). 



