526 



INDEX. 



Cestum Veneris, 26. 

 GliEetozone setosa, 18. 

 Chalina oculata, 22. 

 Charybdea periphylla, 52, 26. 

 Chondrodite from the Tilly Foster iron 



mine, Brewster, New York, by B. S. 



Dana, 67. 

 Chone infundibuliformis, 20. 

 Cibrella sanguinolenta, 1, 9, 14. 21. 

 Cistenides granulata, 3, 6, 12, 15, 2:5. 

 Clark, S. F., new and rare species of 



Hydroids from the New England 



coast, 58. 

 hydroids of the Pacific Coast of the 



United States south of Vancouver 



Island. With a report upon those in 



the museum of Yale College, 249. 

 Clavelina crystallina, 51. 

 Clidiophora trilineata, 5. 

 Clymenella torquata, 4. 

 Clytia Johnstoni, 13, 24. 

 Conilera polita, 3, 22. 

 Coppinia arcta, 9, 21. 

 Coryne rosaria, 250. 

 Cotulina Greenei, 250, 257. 

 Crangon vulgaris, 3, 4. 10. 19. 

 Crenella glandula, 5, 10, 18, 20. 

 Crepidula fornicata, 5. 

 plana, 3, 4, 6, 12, 24. 

 unguiformis, 3, 4, 6, 12. 

 Crisea eburnea, 15. 

 Crossaster pappoaus, 9, 13, 21. 

 Cryptodon Gouldii, 18. 



obesus, 1 1 . 

 Ctenodiscus crispatus, 18. 

 Cuspidella humilis, 7. 

 Cyclocardia borealis, 6, 10. 



Novangliie, 13. 

 Cylichna alba, 8, 17, 23. 

 Cynthia carnea, 13. 

 Cyprina Islandica, 6, 8, 10, 20, 22. 



Dana E. S., chondrodite from the Tilly- 

 Foster iron mine, Brewster, New 

 York, 67. 



Dentalium occidentale, 23. 



Dendronotus arborescens, 8, 1 3. 



Diastylis quadrispinosa, 28, 15. 

 sculpta, 29, 15. 



Diodora uoachina, 8, 11, 20. 



Diphasia fallax, 7, 9. 

 mirabilis, 53, 9. 



Discofascigera lucernaria, 18. 



Discopora 8kenei, 7, 9, 14. 



DLscoporella verrucaria, 24. 



Dodecaceria concharum, 21. 



Dredgings in the region of St. George's 

 Banks in 1872, report on, by S. I. 

 Smith and 0. Harger, 1. 



Dulichia species, 3. 



Echinarachnius parma, 3, 4, 5, 9, 10, 11, 

 21, 22, 24. 



Edwardsia species, 19. 



Elasmobrauchii, median fins of, 284. 



Ensatella Americana, 3. 



Entahs striolata, 6, 8, 11, 13, 14, 17, 23. 



P^pelys montosus, 3. 



Epizoanthus Americanus, 55, 9, 10, 11. 



Equilibrium of heterogeneous substances, 



by J. W. Gibbs, 108, 343. 

 Eschara papposa, 1 3. 

 Escharoides rosacea, 13. 

 Eteone depressa, 16. 

 Eucranta villosa, 37, 22. 

 Eudendrium capillare, 7, 9, 13, 21, 24. 

 ramosum, 7, 9, 11, 21. 

 species, 253, 251. 

 Euraenia crassa, 16, 18. 

 Eunice vivida, 11, 41. 

 Eunoa nodosa, 12, 14. 

 Eupagurus Bernhardus, 27, 3, 4, 5, 19, 21, 



22. 



Kroyeri, 28, 5, 8, 10, 12, 14, 22, 25. 

 pubescens, 27, 3, 5, 8, 9, 10, 15, 19, 



22. 

 Eupolynoe occidentalis, 37. 

 Eusyllis phosphorea, 39, 20. 



Farrella familiaris, 4. 



Fins, median and paired, a contribution to 



the history of vertebrate limbs, by J. K. 



Thacher, 281. 

 Flustra papyrea, 15. 

 Fusus Islandicus, 6, 8, 20. 



Gammarus ornatus, 15. 



purpuratus, 5, 8. 

 Gemellaria loricata, 4, 20. 

 Gibbs, J. W., equilibrium of heterogene- 

 ous substances, 108, 343. 

 Glandula arenicola, 51, 5, 20, 23. 

 Glycera capitata, 43. 



viridescens, 42. 

 Goniada maculata, 42, 15, 16, 22. • 

 Gonothyraea hyalina, 9. 



Loveni, 7. 



tenuis, 61. 

 Grammaria abietina, 9, 15, 21. 



robusta, 21. 

 Grymaja spiralis, 44, 17, 23. 



Halecium articulosum, 63. 



Beanii, 7, 64. 



labrosum, 21. 



plumosum, 64. 



robustum, 53, 11. 



tenellum, 7, 250, 251. 

 Halirages fulvocinctus, 15. 

 llanleia mendicaria, 6. 8, 14, 20. 

 Harger, 0., report on the dredgings in the 

 region of St. George's Banks, in 1872, 1. 

 Harmothoe imbricata, 5, 8, 12, 14, 15, 20, 



22. 

 Ilarpina fusiformis, 29, 16, 18. 



plumosa, 29. 



