30 Catalogue of Museums. 



78 — Salpa caboti. S. I. 



Yineyard Sound, Mass., surface. 



79 — Salpa (large species). S. I. 



Off Martha's Vineyard, Mass., surface. 



SUB-KINCDOWI-IVIOLLUSCA-(Shell-fishes.) 



CLASS LAMELLIBRANCHIATA. 



80 — Ensatella Americana. Razor Shell. S. I. 



Long Island Sound, shore. 



81 — Mya arenaria. Long Clam. S. I. 



Wood's Holl, Mass., shore. 



82 — Clidiophora trilineata. S. I. 



Buzzard's Bay, Mass. 



88 — Callista convexa. S. I. 



Narragansett Bay, R. I. 



84 — Tottenia gemma. S. I. 



Provincetown, Mass., shore. 



85 — Cyprina islandica. S. I. 



Off Newport, R. I. 



86 — Nucula proxima. S. I. 



Southern coast of New England. 



87 — Scapharca transversa. S. I. 



Buzzard's Bay, Mass. 



88 — Mytilus edulis. Common Mussel. S. I. 



Buzzard's Bay, Mass. 



89 — Modiola plicatula. Ribbed Mussel. S. I. 



Wood's Holl, Mass., shore. 



90 — Pecten irradians. Common Scallop. S. I. 



Southern Coast of New England. 



91 — Pecten tenuicostatus. Smooth Scallop. S. I. 



Off Martha's Vineyard, Mass.; 46 fathoms. 



