A `data.frame` containing the size and other attributes of species from genus Spirillina. The variables are as follows:
spirillina
A `data.frame` with 42 rows and 6 variables:
number of individuals by species
test height in um (12--44)
test minor diameter in um (73.71--105.14)
test radius in um (36.86--123.73)
test surface area in um2 (4268--34730)
percent cell occupancy of the test (7.10--100)