E. portoricensis may refer to:
Eburia portoricensis, a longhorn beetle Elaver portoricensis, a sac spider Eleutherodactylus portoricensis, a frog native to Puerto Rico Emathis portoricensis, a jumping spider Emerita portoricensis, a sand crab Erioptera portoricensis, a crane fly Eurema portoricensis, a butterfly found in Puerto Rico