. There are two color forms for this species: Spheciospongia vesparium pallida a bright yellow, and the typical black coloration. Spheciospongia vesparium Excellent for demonstrating liquid transport through flagellated chambers. Spheciospongia is host to the pink snapping shrimp, Synalpheus longicarpus, which because of its modified form and habits is a good illustration of specialization and commensalism.