Pies. 12: 
oe 
Pies. 4,5 
6 
~ 
Fic. 
Fig. 8. 
5. Two views of a specimen. 
EXPLANATION OF PLATE XIX. 
TRITIA TRIVITTATOLDES Whitf. (p. 104). 
Snlarged views of two different specimens; one without the varix, the other having it. 
Surface still further enlarged. 
TRITIA TRIVATTATOIDES var. ELONGATA (p. 105). 
The figures are too broad in proportion to their length. 
. View of another specimen, showing more nearly the true proportions, enlarged. 
TRITIA BIDENTATA Emmons sp. (p. 106). 
. Enlarged view of a large individual of the species. 
OLIVA CAROLINENSIS Conrad (p. 109). 
Copy of Mr, Conrad’s figure from the American Journal of Seience and Arts, vol. 41, 
1st ser., Pl. 1, fig 1. 
Erato EMMonst Whitf. (p. 108). 
. Three views of the only perfect specimen found, enlarged. 
AMYCLA COMMUNIS Conrad (p. 110). 
Two views of one of the larger specimens, enlarged. 
Similar views of another individual which shows color lines on part of the shell. 
