Epinephelus labriformis Epinephelus labriformis Epinephelus labriformis, commonly called starry grouper or flag cabrilla among various other vernacular names, is a species of marine fish in the family Serranidae. The starry grouper is medium-sized fish which grows up to 60 cm. From: "The body of the starry grouper is robust and compressed. The end of the top jaw is exposed. The operculum edge has 3 flat spines; the pre-operculum is without spines. The caudal fin is rounded. The lateral line is complete, it ends at the caudal fin base and is smoothly arched. The scales are rough and relatively small." The starry grouper
Operculum (gastropod) are attached with their head to the lowermost layer. The operculum grows in size as the shell grows, such that the operculum remains in proportion to the apertural size. In many species, when the animal is active and crawling, part of the underside of the shell rests on the outer surface of the operculum. In many species of marine shelled snails which live subtidally, the operculum is greatly reduced in size, and no longer serves to seal the shell entrance. In a large number of families it has been eliminated completely. In species of conchs, the operculum is elongated and