The swirl pattern looks amazing!!!I came across this wicked looking Tessellated coralline algae (Lithophyllum prototypum) while image searching for this post and MAN would it look good on live rock! Could you image a reef tank full of this stuff?:
Gulf Specimen Marine Laboratory offers:
Hildenbrandia prototypus which is now Hildenbrandia rubra (Red encrusting algae):
@reddevilant, are you planning to look for Hildenbrandia in the wild on the East Coast?
@WheatToast Yeah, while on a trip for a marine ecology class we visited a beach not too far from me. In a intertidal zone we found a bunch of rocks covered in what the professor labelled Hildenbrandia. It was a beautiful and bright red-orange encrusting algae that grew in a circular pattern.