CLASS GASTROPODA 
183 
Type in British Museum. Type locality, California coast. 
Range. Santa Barbara, California, to San Quentin Bay, Lower 
California, also Japan. Fossil: Pleistocene, San Pedro to San Diego, 
California. 
Described as Fusus kellettii . 
Genus MACRON H. and A. Adams, 1853 
Inner lip with the callus defined; columella obliquely wrinkled; spire 
elevated, suture channeled. (H. and A. Adams.) 
Type. Macron kellettii A. Adams. 
Distribution. California, Lower California, to West Patagonia. 
Macron aethiops kellettii A. Adams, 1853 
Proceedings, Zoological Society of London, 185. Tryon, Manual of Conchology, 
3: 214; PI. 82, fig. 477. 
P. testa ovata, solida, subperforata, epidermide fusco villoso tecta; 
spira prominula, anfractibus rotundatis, sutura canaliculata, anfractu 
ultimo transversim sulcato, sulcis postice evanidis, antice valde distinctis, 
unica profunda, in dente sulcato, ad labrum, terminata; apertura ovali, 
columella postice callosa, antice flexuosa, producta; labro postice inflexo, 
antice sinuato-dentato. (A. Adams.) 
Epidermis blackish or dark brown, under which the shell is white. 
Whorls partially or entirely encircled with low, broad, rounded ribs, some¬ 
times only apparent on the lower part of the body whorl, sometimes obso¬ 
lete. Length, 1.75-3 in. (Tryon, Manual of Conchology.) 
Type in British Museum? Type locality, not known. 
Range. Catalina Island to Lower California. Fossil: Pleistocene, 
San Pedro to San Joaquin Bay, Orange County, California, and Lower 
California. Pliocene, Ventura County, California. 
Described as Pseudoliva. 
Macron lividus A. Adams, 1854 
Proceedings, Zoological Society of London, 136. Tryon, Manual of Conchology, 
3: 214; PI. 82, fig. 478. 
P. testa ovali, cinerascente, livida, spira obtusa, apice erosa, anfractibus 
3-4 convexiusculia, transversim crebre striatis, anfractu ultimo antice 
oblique sulcato, sulco unico valde impresso; apertura ovali, columella alba 
postice callo spirali instructa, antice oblique plicata, canali brevi, aperta, 
labro margine antice unidentato, intus lirato. (A. Adams.) 
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