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This is a more angular species, with the outer lip strongly 
thickened. There is another thick rib or “ varix” opposite the 
lip, giving the shell a flattened appearance. They 
grow nearly as large as Urosalpinx. 
Another tropical family, Columbellide,— little 
dove shells”—has a few small representatives here. 
ae atin Although small, they are very pretty. Like Muri- 
lunata = cide they are carnivorous. 
Columbella lunata Say is small, smooth, marked 
with two series of new-moon shaped chestnut brown 
lines. 
Columbella avara Say, is larger, with rather slen- 
Columbella Ge? pointed spire. The base of the shell has spiral 
avara. lines only; but above there are beautiful regular 
folds. 
