Epinephelus labriformis by day and crustaceans after dark. Spawning occurs in late summer. 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
Operculum (gastropod) to push into the substrate in a leaping form of locomotion. Virtually all pulmonate snails are inoperculate, i.e. they do not have an operculum, with the exception of the Amphiboloidea. However, some terrestrial pulmonate species are capable of secreting an epiphragm, a temporary structure that can in some cases serve some of the same functions as an operculum. The epiphragm may be distinguished from the true operculum by its homogeneity and want of growth marks. In ammonites (extinct shelled cephalopods), a calcareous structure known as the aptychus (plural aptychi) existed. When these were first described they were thought to be