Claim: Callomphala are classified in the Mollusca phylum, which are invertebrate animals that remain unstudied.
Evidence: Callomphala is a genus of sea snails, marine gastropod mollusks in the family Skeneidae. Mollusca Phylum: Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda. The proportion of undescribed species is very high. Many taxa remain poorly studied.