THE NAUTILUS. 137 
NEW NAMES FOR WEST INDIAN TERTIARY PECTENS. 
BY C. WYTHE COOKE. 
Doctor T. Wayland Vaughan has kindly called my attention 
to the fact that the names vaughani and waylandi applied by me 
in 1919 to extinct species of Pecten from the West Indies had 
already been used by Ralph Arnold for different species of the 
same genus. For these preoccupied names I propose to substi- 
tute the following : 
PECTEN VAUN Cooke, n. n. 
Synonym: Pecten vaughani Cooke (not Arnold), Carnegie 
Inst. Washington, Pub. 291, p. 133, pl. 8, figs. 2-4, 1919. 
Occurrence: Anguilla formation (upper Oligocene), Crocus 
Bay, Anguilla. 
PECTEN VAUN var. FLABELLUM COOKE, n. n. 
Synonym: Pecten vaughani var. flabellum Cooke, Carnegie 
Inst. Washington, Pub. 291, p. 134, pl. 8, figs. 6-7, 1919. 
Occurrence : La Cruz marl (middle Miocene), La Cruz and 
Santiago, Cuba. 
PEcTEN (Chlamys) LANDI Cooke, n. n. 
Synonym: Pecten (Chlamys) waylandi Cooke (not Arnold), 
Carnegie Inst. Washington, Pub. 291, p. 131, pl. 7, figs. 4a, b, 
1919. 
Occurrence: La Cruz marl (middle Miocene), Santiago, Cuba. 
GEORGE BRETTINGHAM SOWERBY. 
George Brettingham Sowerby, F. L. S. (the third G. B. S.), 
died on Jan. 31st at his residence at Richmond, Surrey, Eng- 
land. Eldest son of G. B. Sowerby (II), he was born in Lon- 
don, Sept., 1843. He commenced business as a conchologist 
about 1860. Many important collections passed through his 
hands during the 56 years he was in business, his retirement 
taking place in Jan., 1916. He was a fellow of the Linnean 
