48 FLORIDA GEOLOGICAL SURVEY-I5TH ANNUAL REPORT 
Type (Cat. No. 352275 U. S. N. M.) ; This measures: length of left 
valve 12.4 mm.; height 8.5 mm.; diameter (double) 6 mm. 
Geologic horizon: Probably Miocene. 
Locality: Well at Kissimmee, Osceola Co., Fla., (depth 65—100 
ft.). G. C. Matson, collector, 1908. 
Discussion: The thinness of the shell approaches C. catkaria Dali, 
but in the new species the posterior angled edge is less drawn out, the disk 
is more rounded and the shell more nearly equilateral. The shape of the 
shell resembles C. vaughani Dali, but the latter is much heavier and 
more robust in every way. I am unable to find a very close relative to the 
described species. 
EXPLANATION OF PLATE I 
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Caecum putnamensis n. sp. Cotype, (xlO). U. S. N. M. Cat. No. 352277. 
Caecum putnamensis n. sp. Cotype, (xlO). U. S. N. M. Cat. No. 352276. 
Columbella (Alia) matsoni n. sp. Ventral view, Type (x3). 
Columbella (Alia) matsoni n. sp. Dorsal view, Type (x3). Nucleus 
restored. 
Corbula inaequalis Say, var. A. Exterior of right valve (x2). Station 
5869, DeLand, Fla., (stratum No. 3). U. S. N. M. Cat. No. 352286. 
Corbula inaequalis Say, var. A. Exterior of left valve of another speci¬ 
men (x2). Station 5869, DeLand, Fla., (stratum No. 3). U. S. N. M. Cat. 
No. 352286. 
Corbula inaequalis Say, var. B. Exterior of left valve (x2). Station 
5869, DeLand, Fla.^ (stratum No. 3). U. S. N. M. Cat. No. 352287. 
Corbula inaequalis Say, var. B. Exterior of right valve (x 2). Station 
5869, (stratum No. 3). U. S. N. M. Cat. No. 352287. 
Terebra (Acus) kissimmeensis n. sp. Larger cotype (x 3). 
Terebra (Acus)kissimmeensis n. sp. Smaller cotype (x5). 
Cardita (Carditamera) osceolaensis n. sp. Exterior of left valve. Type 
(x 3). 
Cardita (Carditamera) osceolaensis n. sp. Interior of left valve. Type 
(x 3). 
Area transversa Say. Light form. Exterior of left valve (xl%). Sta¬ 
tion 5869, DeLand, Fla., (stratum No. 3). U. S. N. M. Cat. No. 352281. 
Area transversa Say. Light form. Right valve of another specimen 
(x V/ 2 ). Station 5869, DeLand, Fla., (stratum No. 3). U. S. N. M. Cat. No. 
352281. 
