Tag: Protogynous Hermaphroditism

Alan's picture
Moon Wrasse (Thalassoma lunare) - dominant male with subordinates

A single dominant male Moon Wrasse (Thalassoma lunare) carefully guards its harem of "intermediate phase" females (and subordinate males) during a period of spawning at Sail Rock.

Alan's picture
Red-Bar Anthias (Pseudanthias Rubrizonatus) - Male

This photograph of the male Red-Bar Anthias (Pseudanthias rubrizonatus) clearly shows the filaments trailing from the upper and lower corners of the caudal (tail) fin, which is the main anatomical difference between males and females of the species.