Gaussia princeps (Scott, 1894) (Copepoda : Calanoida : Metridinidae) is redescribed from the Indo-Pacific region on the basis of two adult females, one adult male, and the fifth copepodid stage of both sexes and compared with the holotype from the Gulf

Adult male and female Gaussia princeps (T. Scott) produce bright, extracellular luminescent displays usually coupled with the initiation of rapid swimming. Glands of the head, mandibular palps, urosome, furca, and underlying at least 14 body pores contribute

Proteins engineered to generate fluorescent or bioluminescent signals are commonly used for the non-invasive study of a variety of biological processes and diseases in animals and humans (1-3). Usually the enhanced green fluorescent proteins, the variant