Pallid sturgeon prefer swift river currents more often than do shovelnose sturgeon. Early DNA research indicated that pallid sturgeon and shovelnose sturgeon were a single species. Fish include perch, croaker, cabezon, California corbina, and shovelnose guitarfish. The pallid sturgeon's snout and head are longer than that of the shovelnose sturgeon. The roe of the shovelnose sturgeon is marketed as "hackleback" caviar. The shovelnose guitarfish, "Rhinobatos productus", is a ray in the family Rhinobatidae. Other species include the shovelnose salamander, blackbelly salamander, eastern red-spotted newt, and spotted dusky salamander. There is some interest in marketing the shovelnose sturgeon as an aquarium species. The shovelnose sturgeon, as its distribution represents, is impacted very little by turbidity. The shovelnose sea catfish is of commercial value to fisheries; it is mostly marketed fresh. The subspecies occurring there is called the Organ Pipe shovelnose snake ("C. p. organica"). The shovelnose frogs are burrowing frogs, living most of their lives underground. The shovelnose frogs are moderate-sized frogs, reaching a length of . Reports claim regular appearance of Snappers, Bannerfish, Lionfish, Triggerfish and Shovelnose Rays. The Western shovelnose snake ("Sonora occipitalis") is a species of snake of the family Colubridae.