Scientific name : Serranus tortugarum
Family : Serranidae (serrans, 102 species)
Size : Up to 8 cm
Distribution : Caribbean
Biology : The chalk grass is a simultaneous hermaphrodite, being both male and female at any age. Despite this, it is unable to impregnate itself.
It feeds on zooplankton and inhabits sandy bottoms in the immediate vicinity of a few rocks or shells that provide shelter.
IUCN status : Least concern