FISHERIES OF THE UNITED STATES. 7 



Section A.— AQUATIC ANIMALS AND PLANTS, Etc. 



VII. — Marine and fresh- water invertebrates, exclusive 



OF MOLLUSCA. 



29. Collection of economic Crustaceans, mainly alcoholic, con- 



taining forty-eight species, used as food and bait, and 

 injurious to submarine structures of wood. It in- 

 cludes the Lobster, Homarus americanus; Rock-lob- 

 ster, or Salt-water Crayfish, Panulirus interrwptus ; 

 River Crayfish, Cambarus and Astacus; Common Ed- 

 ible Crab, Gallinectes hastatus; Rock Crabs, Cancer 

 irroratus and borealis; California Market Crab, Cancer 

 magister ; Stone Crab, Menippe mercenaria ; Commou 

 Shrimp, Crangon vulgaris ; Southern Shrimp, Pcnmus 

 setiferus ; California Shrimp, Crangon franciscorum; 

 King Crab, Limulus Polyphemus, etc. 



30. Collection of economic worms in alcohol, including the ma- 



rine annelids most commonly used as bait, and the 

 American medicinal leech, Macrobdella decora, Verrill. 

 •31. Collection of economic echinoderms, mostly in alcohol, con- 

 taining five species, used as food, or available as such, 

 injurious to oyster beds, &c, as follows : Sea Cucum- 

 ber, Pentactafrondosa; Sea Urchins, Strongylocentrotus 

 drobachiensis, 8. franciscorum, Ecliinaraclmlus parma ; 

 Starfishes, Asterias vulgaris, and A. Forbesii. 



32. Collection of Florida commercial sponges, containing six 



species and two hundred and thirty-seven specimens, 

 furnished by McKesson & Robbins, of New York. 

 The species are as follows: Glove Sponge, Spongia 

 graminea; Sheepswool Sponge, 8. gossipina; Velvet 

 Sponge, 8. meandriniformis ; Grass Sponge, 8. cerebri- 

 formis; Yellow Sponge, 8. corlosia and dura. From the 

 same source, four specimens of Sheepswool Sponge, 

 illustrating artificial propagation by means of cuttings. 

 Also, one specimen of the boring sponge, Cliona sul- 

 phurea. 



33. Complete collection of the described species of fresh-water 



Cray-fish, Cambarus and Astacus, occurring within the 

 limits of the United States. Contains 40 species. 



VIIL— Alg^e. 



34. Collection of marine Algae of the United States, prepared 



by W. G. Farlow. 



35. Plates of Wood's Fresh- water Algae of the United States. 



