Fam. 2. Cuspidariidae.—Siphons long, united in part, foot short, animal dioecious; shell small, slightly inequivalve, rostrate, not nacreous, each valve with ligamentary cartilage spoon-shaped, with a calcareous ossicle, cardinal and lateral teeth present or absent. Jurassic——. Single genus, Cuspidaria, with many sections.
BRACHIOPODA
PART I
RECENT BRACHIOPODA
BY
ARTHUR E. SHIPLEY, M.A.
Fellow and Tutor of Christ’s College, Cambridge
CHAPTER XVII
RECENT BRACHIOPODA
INTRODUCTION—SHELL—BODY—DIGESTIVE SYSTEM—BODY CAVITY—CIRCULATORY SYSTEM—EXCRETORY ORGANS—MUSCLES—NERVOUS SYSTEM—REPRODUCTIVE SYSTEM—EMBRYOLOGY—HABITS—DISTRIBUTION—CLASSIFICATION