These Poeciliid species include green swordtails, "Xiphophorus helleri" and Trinidadian guppies, "Poecilia reticulata". Heller's broad-nosed bat ("Platyrrhinus helleri") is a bat species from South and Central America. The specific name, "helleri", is in honor of American zoologist Edmund Heller. The subspecific name, "helleri", is in honor of American zoologist Edmund Heller. "Sphyraena helleri" can reach a length of . Sphyraena helleri, the Heller's barracuda, is a schooling species of barracuda in the family Sphyraenidae. Snakes present include the Southern Pacific rattlesnake ("Crotalus oreganus helleri"). Opuntia helleri is a species of plant in the family Cactaceae. Alternanthera helleri is a species of plant in the family Amaranthaceae. Tmesisternus helleri is a species of beetle in the family Cerambycidae. Doliops helleri is a species of beetle in the family Cerambycidae. The Southern Pacific rattlesnake ("Crotalus oreganus helleri") is also present on the island. Scalesia helleri is a species of flowering plant in the family Asteraceae.