UNIVERSITY OF CALIFORNIA PUBLICATIONS— (Continued) 



VoL19. 1. Reaction of Various Plankton Animals with Reference to their Diurnal 



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



2. The Pteropod Desmopterus pacificus (sp. nov.), by Christine Essenberg. 



Pp. 85-88, 2 figures in text. May, 1919 „ .05 



3. Studies on Giardia microti, by William C. Boeck. Pp. 85-136, plate 1, 19 



figures in text _ „ 60 



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



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

 figures in text. October, 1919 60 



5. A Muscid Larva of the San Francisco Bay Region which sucks the Blood 



of Nestling Birds, by O. E. Plath. Pp. 191-200. February, 1919 _ JO 



6. Binary Fission in Collodictyon triciliaPum 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 Cercaria, by William W. Cort. Pp. 275- 



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



8. A New Distome from Sana aurora, by William W. Cort. Pp. 283-298, 



5 figures in text. November, 1919..... _. .20 



9. The Occurrence of a Rock-Boring Isopod along the Shore of San Fran- 



cisco Bay, California, by Albert L. Barrows, Pp. 299-316, plates 15-17. 

 December, 1919 25 



10. A New Morphological Interpretation of the Structure of Noctiluca, and 



its Bearing on the Status of the Cystoflagellata (Haeckel), by Charles 



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



11. The Life Cycle of Echinostoma revolutum (Froelich), by John C. Johnson. 



Pp. 338-388, plates 19-25, 1 text figure. May, 1920 60 



12. On Some new Myriopods Collected in India in 1916 by C. A, Kofoid, by 



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



VoL20. 1. Studies on the Parasites of the Termites. I. On Streilomastix strix, a 

 Polymastigote Flagellate with a Linear Plasmodial Phase, by Charles 

 Atwood Kofoid and Olive Swezy. Pp. 1-20, plates 1-2, 1 figure in text. 

 July, 1919 _ 26 



2. Studies on the Parasites of the Termites. II. On Trichomitv^ termitidis, 

 a Polymastigote Flagellate with a Highly Developed Neuromotor System, 

 by Charles Atwood Kofoid and Olive Swezy. Pp. 21-40, plates 3-4, 2 

 figures in text. July, 1919 „ 25 



S. Studies on the Parasites of the Termites, m. On Trichonympha campanula 

 Sp. Nov., by Charles Atwood Kofoid and Olive Swezy. Pp. 41-98, plates 

 5-12, 4 figures in text. July, 1919 75 



4. Studies on the Parasites of the Termites. IV. On Leidyopsis sphaerica 

 gen. nov., sp. nov., by Charles Atwood Kofoid and Olive Swezy. Pp. 

 99-116, plates 13-14, 1 figure in text. July, 1919 _ _ 25 



5. On the Morphology and Mitosis of Chilomastix mesniU (Wenyon), a Common 



Flagellate of the Human Intestine, by Charles A. Kofoid and Olive Swezy. 



Pp. 117-144, plates 15-17, 2 figures in text. April, 1920 .35 



6. A Critical Review of the Nomenclature of Human Intestinal Flagellates, 



Cercomonas, Chilomastix, Trichomonas, and Giardia, by Charles A. Kofoid. 



Pp. 145-168, 9 figures in text. June, 1920 .35 



VoL 21. 1. A Revision of the Microtus calif omicus Group of Mesidow Mice, by Rem- 

 ington Kellogg. Pp. 1-42, 1 figure in text. December, 1918 „ 60 



2. Five New Five-toed Kangaroo Rats from Oallfomla, by Joseph GrlnnelL 



Pp. 43-47. March, 1919 _ 05 



3. Notes on the Natural History of the Bushy-Tailed Wood Rats of California, 



by Joseph Dixon. Pp. 49-74, plates 1-3, 3 figures in text. December, 1919 .25 



4. Revision of the Avian Genus Passerella, with Special Reference to the Dis- 



tribution and Migration of the Races in CaJifomia, by H. S. Swarth. 



Pp. 75-224, plates 4-7, 30 figures in text. September, 1920 1.75 



5. A Study of the California Jumping Mice of the Genus Zapus, by A. Brazier 



Howell. Pp. 225-238, 1 text figure. May, 1920 15 



Vd. 22. 1. A Quantitative and Statistical Study of the Plankton of the San Joaquin 

 River and its Tributaries in and Near Stockton, California, in 1913, 

 by Wlnfred Emory Alien. Pp. 1-202, plates 1-12, 1 text figure. June, 

 1920 _ _ „ S.00 



