PLE EA A teins SE ap carver tee De 3) see eee 
op SHELLS OF SAN PEDRO BAY—WILLIAMSON. 
(Nautilus, v., p. 105) notof Carpenter, and G@. densiclathrata var. murina 
‘of Carpenter. W.H.D.| 
Fissuridea rugosa Sby. 
Two found at White’s Point. This is one of the southern species of 
shells referred to in the introduction as possibly adventitious. Arnold. 
Genus LUCAPINA Gray. 
Lucapina crenulata Sby. 
Plentiful at Catalina, in the winter. Three or four live examples 
found, by as many persons, at the Points, and Dead Man’s Island. 
Genus MEGATEBENNUS Pilsbry. 
Megatebennus bimaculatus Dall. (Fissurellidea and Clypidella of authors). 
Two found in the bay. 
Genus LUCAPINELLA Pilsbry. 
Lucapinella callomarginata Cpr. (Clypidella of Cpr.). 
Three dead shells. One live example found by M. Estella Williamson. 
Family HALIOTID. 
Genus HALIOTIS Linné. 
Haliotis corrugata Gray. 
Dead shells not often found. Live ones occasionally brought in by 
fishermen. 
Haliotis Cracherodii Leach. 
Plentiful in winter, at low tide, on the rocks. This is the ‘ white” 
Abalone (pronounced “ Ab/-a-l6-né”) of California, and a favorite edible 
shellfish of the Mexicans. Although the mother-of-pearl of these shells 
is usually white when decorticated, one shel] picked up in San Pedro 
Bay, by Mrs. Emma King, when decorticated, presented a beautiful 
play of colors, unlike either the type or H, fulgens. The muscular scar 
was also finely colored. The spire rising higher than usual in shells of 
this type made the specimen more cup-shaped. 
Haliotis Cracherodii var. splendidula. 
A number of shells, found at one time, at Point Vincent, have bril- 
liant blotches of color in their interior somewhat like H. fulgens. Some 
have spots of brown color. 
Haliotis fulgens Phil. (H. splendens Rve.). 
As the former name has precedence, according to Mr. H. A. Pilsbry, 
he substitutes it for H. splendens. This splendid shell is sometimes 
found very large at Portuguese Bend, at low tide, in the winter. 
