• XTNIVEESITY OF CALIFORNIA PUBLICATIONS— (Continued) 



14. Six New Mammals from tlie Mohave Desert and Inyo Regions of Calif omla, 



by Joseph Grlnnell. Pp. 423-430. 



15. Notes on Some Bats from Alaska and British Columbia, by Hilda Wood 



Grlnnsll. Pp. 431-433. 



Nos. 14 and 15 in one cover. April, 1918 _. .15 



16. Revision of the Rodent Genus Aplodontia, by Walter P. Taylor. Pp. 435- 



504, plates 25-29, 16 figures in text. May, 1918 76 



17. The Svibspecles of the Mountain Chickadee, by Joseph Grlnnell. Pp. SOS- 



SIS, 3 figures in text. May, 1918 15 



18. Excavations of Biurrows of the Rodent Aplodontia, with Observations on 



the Habits of the Animol, by Charles Lewis Camp. Pp. 517-536, 6 figures 



in text. June, 1918 20 



Index, pp. 537-545. 

 Vol. 18. 1. Mitosis In Giardia microti, by William C. Boeck. Pp. 1-26, plate 1. October, 



1917 36 



2. An Unusual Extension of the Distribution of the Shlpworm in San Francisco 



Bay, California, by Albert L. Barrows. Pp. 27-43. December, 1917 .20 



3. Description of Some New Species of Pol3Tioldae from the Coast of Cali- 



fornia, by Christine Essenberg. Pp. 45-60, plates 2-3, October, 1917 .20 



4. New Species of Amphiuomldae from the Pacific Coast, by Christine Essen- 



berg. Pp. 61-74, plates 4-5. October, 1917 16 



5. Criihidia e^iri/ophlhalmi, sp. nov., from the Hemlpteran Bug, Etiryophthalmus 



convirm Stai, by Irene McCulloch. Pp. 75-88, 35 figures in text. Decem- 

 ber, 1917 15 



6. On the Orientation of Erythrop/iis, by Charles Atwood Kofoid and OUve 



Swezy. Pp. 89-102, 12 figures in text. December, 1917 16 



7. Tlie Transmission of Nervous Impulses In Relation to Locomotion In the 



Earthworm, by John F. Bovard. Pp. 103-134, 14 figures in text. January, 

 1918 _ 35 



8. The Function of the Giant Fibers in Earthworms, by John F. Bovard. Pp. 



135-144, 1 figure in text. January, 1918 10 



9. A Rapid Method for the Dete;;tion of Protozoan Cysts In Mammalian 



Faeces, by William C. Boeck. Pp. 145-149. December, 1917 06 



10. The Musculature of Ueplanchun maculatvs, by Pirie Davidson. Pp. 151-170, 



12 figures in text. March, 1918 25 



11. The Factors Controlling the Distribution of the Polynoidae of the Pacific 



Coast of North America, by Christine Essenberg. Pp. 171-238, plates 6-8, 



2 figures in text. March, 1918 76 



12. Differentials in Behavior of the Two Generations of Salpa demorratica 



Relative to the Temperature of the Sea, by Ellis L. Michael. Pp. 239-298, 

 plates 9-11, 1 figure in text. March, 1918 65 



13. A Quantitative Analysis of the Molluscan Fauna of San Francisco Bay, by 



E. L. Packard. Pp. 299-336, plates 12-13, 6 figures in test. April, 1918 40 



14. The Neuromotor Apparatus of Euploies patella, by Harry B. Yocom. Pp. 



337-398, plates 14-16. September, 1918 „ 70 



15. The Slgnifio?nc3 of Skeletal Variations in the Genus Peridinium, by A. L. 



Barrows. Pp. 397-478, plates 17-20, 19 figures In text. June, 1918 90 



16. The Subclavian Vein and Its Relations in Elasmobranch Fishes, by J. Frank 



Daniel. Pp. 479-484, 2 figures in text. August, 1918 10 



17. The Cercaria of the Japanese Blood Fluke, Schistosoma japonicum Katsu- 



rada. by William W. Cort. Pp. 485-507, 3 figures in text. 



18. Notes on the Eggs and Mlracidla of the Human Schistosomes, by WUllam 



W. Cort. Pp. 509-519, 7 figures in text. 



Nos. 17 and 18 In one cover. January, 1919 ...„ .36 



Index, pp. S21-S29. 

 Vol. 19. 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 paciiirus (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. April. 1919 „ 60 



4. A Comparison of the Ufe Cycle of Critliidia with that of Trypanosoma In 



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



figures in text. October. 1919 60 



6. 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 10 



6. Binary Fission in CoUodictyon triciliatum 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 



