UNIVERSITY OF CALIFORNIA PUBLICATIONS— (Continued) 



11. A Study of the Races of the White-Fronted Goose (Anser albifrons) Occur- 



ring in California, by H. S. Swarth and Harold C. Bryant. Pp. 209-222, 



2 figures in text, plate 13. October, 1917 „ 15 



12. A Synopsis of the Bats of California, by Hilda Wood Grinnell. Pp. 223- 



404, plates 14-24, 24 figures in text. January, 1918 $2.00 



13. The Pacific Coast Jays of the Genus Aphelocoma, by H. S. Swarth. Pp. 



405-422, 1 figure in text. February 23, 1918 20 



14. Six New Mammals from the Mohave Desert and Inyo Regions of California, 



by Joseph Grinnell. Pp. 423-430. 



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



Grinnell. 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 „ .75 



17. The Subspecies of the Mountain Chickadee, by Joseph Grinnell. Pp. SOS- 



SIS, 3 figures in text. May, 1918 15 



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



the Habits of the Animal, by Charles Lewis Camp. Pp. 517-536, 6 figiires 



in text. June, 1918 20 



Index, pp. S37-S45. 



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



1917 .35 



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



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



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



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



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



berg. Pp. 61-74, plates 4-5. October, 1917 15 



5. Crithidia extryophthalmi, sp. nov., from the Hemipteran Bug, Exiryophthdlmus 



convivus Stai, by Irene McCuUoch. Pp. 75-88, 35 figures in text. Decem- 

 ber, 1917 15 



6. On the Orientation of Erythropsis, by Charles Atwood Kofoid and Olive 



Swezy. Pp. 89-102, 12 figures in text. December, 1917 .15 



7. The 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 Detection of Protozoan Cysts in Mammalian 



Faeces, by WilUam C. Boeck. Pp. 145-149. December, 1917 05 



10. The Musculature of Heptanchus maculatus, 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 75 



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



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 MoUuscan Fauna of San Francisco Bay, by 



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



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



337-396, plates 14-16. September, 1918 _ 70 



15. The Significance 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 Cercarla 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 Miracidia of the Human Schistosomes, by William 



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



Nos. 17 and 18 in one cover. January, 1919 — .. .35 



Index, pp. 521-529. 



