File:A manual of fish-culture, based on the methods of the United States commission of fish and fisheries (1897) (14761192061).jpg

Identifier: manualoffishcult00unit (find matches)
Title: A manual of fish-culture, based on the methods of the United States commission of fish and fisheries
Year: 1897 (1890s)
Authors: United States. Bureau of Fisheries Brice, John J. (from old catalog) Moore, H. F. (Henry Frank), 1867-1948 Chamberlain, F. M. (Frederick M.)
Subjects: Fish culture Oyster culture Frogs
Publisher: Washington, Govt. print. off.
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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Text Appearing Before Image:
. 8. Optical section of egg 27hours after impregnation, show-ing two large cells, derived froma in fig 6, covered by a layer ofsmall ectodermal cells. Fig. 9. Egg a few hours older,show-ing large cells viewed from below. Fig. 10. An egg somewhat olderviewed from above, showing further subdivision of large cells asseen through cells of upper layer. Fig. 11. An older egg, now becomeflattened from above downward.Viewed in optical section. Fig. 12. Surface view of an embryojust beginning to swim. After W. K. Brooks. Fig. 13. Optical section of same. Fig. 14. Surface view of same fromanother position. Fig. 15. Surface view of same fromanother position. Fig. 16. An older embryo in sameposition as in fig 12. Fig. 17. A still older embryo show-ing spherical ciliated digestivecavity opening by mouth, m. Fig. 18. An embryo with well-de-veloped larval shells, older thanfig. 1, Plate VIII. rs, right shell;Is, left shell; vl, velum; m,mouth. Report U. S. F. C. 1897. (To face page 340.) Plate VIII.
Text Appearing After Image:
Fig. 1. View of right side of embryo about G days old. m, mouth; v, vent; I, right lobe of liver; vl, velum. Fig. 2. Older larva of European oyster, Ostrea lurida. L, shell; h, hinge; rs and ri, retractor muscles ofthe velum, vl; s, stomach; i, intestine; am, larval adductor muscle; b, body cavity. Other letters as inthe preceding. Fig. 3. Attached spat of Ostrea virginiana. S, shell of spat with larval shell, L, at the beak or umbo; p,palps; g, gills; c, diagrammatic representation of a single row of cillia extending from the mantle border tothe mouth m; r, radiating muscle fibres of mantle; t, rudimentary tentacles of mantle border; M, perma-nent adductor muscle; C, cloaca; ve and cm, ventricle and auricle of the heart; y, posterior extremity ofthe gills and junction of the mantle folds. Other figures as above. Compare this figure with PI. I, fig. 1. Fig. 1 after W. K. Brooks. Fig. 2 after Thomas H. Huxley. Fig. 3 after John A. Ryder. Report U. S. F, C. 1 897. (To face page 340.) Pl

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