Barnacles are crustaceans, related
to crabs, shrimp, and lobsters. There are more than 1,000 species of
barnacles in habitats as deep as 4,000 meters and as shallow as intertidal
Many species are very selective about the spot they settle; some attach
only to humpback whales. You may read more about them in our Ocean
For the purpose of research, barnacles are preserved either as dried
samples or in ethyl alcohol. To study the soft tissues of these and
most other marine invertebrates, researchers must have fluid-preserved
Large jar with fluid-preserved specimens; includes
two specimens, the sessile barnacles (Coronula) that were
attached to the humpback whale, and Conchoderma auritum (rabbit-eared
barnacles) growing on top of the sessile barnacle.
Above left, Coronula regina and Coronula
diadema. Close-up on right of Coronula reginae.
Left, grouping of Chelonibia testudinaria Linn. (turtle
barnacles) collected in Bahia de Los Angeles B.C. in 1963 from
the carapace of a green sea turtle (Chelonia mydas). Right,
close up of one Chelonibia testudinaria.
Left, Balanus trigonus on shell.
Right, Balanus nubilis (giant acorn barnacle) attached to Crassadoma
gigantea (rock scallop).
Tetraclita rubescens (acorn barnacles) collected
from San Pedro breakwater in San Francisco, 1941.
To understand how we preserve and care for our research specimens,
check out Caring