Second-largest phylum in number of species- over 100,000 described.
1 Unit 6.1 Phylum Mollusca. 2 Mollusks 50,000 -100,000 living species 35,000 extinct species Largest = 1000 pounds 80% less than 5 cm Soft body Most have.
1 Phylum Mollusca BIO 2215 Oklahoma City Community College Dennis Anderson.
