ONIVEESITY OF OALIFOENIA PtTBLIOATIONS 



Note. — The University of California Publicatlona are offered In exchange for the pubU- 

 catlons of learned societies and institutions, universities, and libraries. Complete lists of 

 all the pnbllcationfl of the University wlU be sent updn request. For sample copies, lists 

 of publications or other information, address the MANAQEfi OF THE UNTVEKSIXY 

 PEESS, BERKELEY, CAilFOENIA. U. S. A. Ail matter sent in exchange should be 

 addressed to THE EXCHANGE DEPAETMENT, UNIVEESITY LIBEAET. BEEEELET 

 OALIFOENIA, U.S.A. ' 



WILLIAM WESLEY & SONS, LONDON 

 Agent for the series in American Archaeology and Ethnology, Botany, Geology, 

 Physiology, and Zoology. 

 ZOOLOGY.— C. A. Kofoid and J. Grlnnell, Editors. 



This series contains the contributions from the Department of Zoology, from the 

 Marine Laboratory of the Scripps InstituUon for Biological Research, at La Jolla, 

 Oallfomia, and from the California Museum of Vertebrate Zoology In Berkeley. 

 Cited as Univ. Calif. PubL ZooL 



Volume 1, 1902-1905, 317 pages, with 28 plates .„ $3.50 



Volume 2, 1904^1906, xvll + 382 pages, with 19 plates _. . $3.80 



Volume 3, 190&-1907, 883 pages, with 23 plates __ _ $3.50 



Volume 4, 1907-1908, 400 pages, with 24 plates __ _ $3.60 



Volume 6, 1908-1910, 440 pages, with 34 plates $3£0 



Volume 6, 1908-1911, 478 pages, with 48 plates _ $3.50 



Volume 7, 1910-1912, 446 pages, with 12 plates $3.50 



Volume 8, 1911, 357 pages, with 25 plates $3.50 



Volume 9, 1911-1912, 365 pages, with 24 plates . $3.60 



Volume 10, 1912-1913, 417 pages, with 10 plates $3.60 



Volume 11, 1912-1914, 538 pages, with 26 plates $6.00 



Volume 12, 1913-1916, 568 pages, with 22 plates $5.00 



Volume 13, 1914^1916, 529 pages, with 39 plates $5.00 



Volume 14, 1914 1918, 452 pages, with 60 plates _ $5.00 



Volume 15, 1915-1916, 360 pages, with 38 plates $4.00 



Volume 16, 1915-1917, 522 pages, with 46 plates _ $5.00 



Volume 17, 1916-1918, 545 pages, with 24 plates $6.00 



Volume 18, 1917-1919, 529 pages, with 20 plates $6.00 



Volume 19, 1919-1920, 480 pages, with 33 plates $6.00 



Vol. 19. 1. Beactlon of Various Plankton Animals with Seference to Their Diurnal 



Migrations, by Calvin O. Esterly. Pp. 1-83. April, 1919 85 



2. The Pteropod Degmopterus jtacificus (sp. nov.), by Christine Essenberg. Pp. 



85-88, 2 figures in text. May, 1919 06 



3. Studies on Giardia mitvoti. by William C. Boeck. Pp. 85-138, plate 1, 19 



figures in text April, 1919 _ _ 60 



4. A Comparison of the Life Cycle of Crithidia with that of Trypanotoma in 



the Invertebrate Host, by Irene McCuUoch. Pp. 135-190, plates 2-6, 3 

 figures in text. October, 1919 - - _ - - 60 



5. A Muscid Larva of the San Francisco Bay Beglon Which Sucks the Blood 



of Nestling Birds, by O. E. Plath. Pp. 191-200. February, 1919 — 10 



6. Binary Fission in Collodictyon trieiliatum Carter, by Robert Clinton Rhodes. 



Pp. 201-274, plates 7-14, 4 figures in text. December, 1919 _.. _ — .. 1.00 



7. The Excretory System of a Stylet Cercarla, by William W. Cort. Pp. 275- 



281, 1 figure in text. August, 1919 ..._ - .10 



8. A New Dlstome from Rana aurora, by WUllam W. Cort. Pp. 283-298, 6 



figures in text. November, 1919 - 20 



9. The Occurrence of a Eook-borlng Isopod along the Shore of San Francisco 



Bay, California, by Albert L. Barrows. Pp. 299-316, plates 16-17. De- 

 cember, 1919 _ - -26 



10. A New Morphological Interpretation of the Structure of Noctilitca, and Its 



Bearing on the Status of the CystoflageUata (Haeckel), by Charles A. 

 Kofoid. Pp. 317-334, plate 18, 2 figures in text. February, 1920 25 



11. The Life Cycle of Echinoatoma revolutum (Froelich), by John 0. Johnson. 



Pp. 838-388, plates 19-25, 1 figure in text. May, 1920 — 60 



12. On Some New Myriopods Collected In India in 1916 by 0. A. EU>fold, by 



Ralph V. Chamberlln. Pp. 389-402, plates 26-28. August, 1920 20 



13. Demonstration of the Function of the Neuromotor Apparatus in Euplotet 



by the Method ef Microdissection, by Charles V. Taylor. Pp. 403-470, 



plates 29-33, 2 figures in text. October, 1920 8S 



Index, pp. 471-480. 



