@article {530,
	title = {A preliminary study of sipunculan burrows in rock thin sections},
	journal = {Caribbean Journal of Science},
	volume = {12},
	number = {1-2},
	year = {1972},
	pages = {41-44},
	keywords = {coral boring},
	author = {Rice, M. E. and MacIntyre, I. G.}
}
@article {506,
	title = {Possible boring structures of Sipunculids},
	journal = {American Zoologist},
	volume = {9},
	year = {1969},
	pages = {803-812},
	keywords = {coral boring},
	author = {Rice, M. E.}
}
