Cephalods, mollusks and crustaceans fall under the herps and inverts category.
No it's been like that.
Explaining the categories
Freshwater Species (including freshwater inverts)
Coral Reef Species (fish normally in a reef display, including corals and inverts)
Sharks and Rays
Saltwater Fish (more open sea species, pelagic fish)
Seabirds (penguins, puffins, and other shorebirds)
Marine Mammals (polar bears, otters, manatees, cetaceans, and pinnipeds)
Herps (reptiles including sea turtles, amphibians and unaquatic inverts)
The category definition of herps does not currently include cephalopods, mollusks, and the like. The last post explaining definitions says unaquatic invertebrates under herps. If that is incorrect, and it includes all invertebrates, I would suggest making that more obvious so people don't get confused.