UNIVEESITY OF CALIFOENIA PUBLICATIONS— (Continued) 



7. The Subspecies of Sceloporus occidentalis, with Description of a New Form 



from the Sierra Nevada and Systematic Notes on Other Califoxnia 

 Lizards, by Charles Lewis Camp. Pp. 68-74. December, 1916 J.0 



8. Osteological Relationships of Three Species of Beavers, by P. Harvey 



Holden. Pp. 75-114, plates 5-12, 18 text figures. March, 1917 .40 



9. Notes on the Systematic Status of the Toads and Frogs of California^ by 



Charles Lewis Camp. Pp. 115-125, 3 text figures. February, 1917 .10 



10. A Distributional List of the Amphibians and Reptiles of California, by 



Joseph GrinneU and Charles Lewis Camp. Pp. 127-208, 14 figures in text. 

 July, 1917 „ „ .86 



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



ring in California, by H. S. Swarth and Harold 0. Bryant. Pp. 200-222, 



2 figures in text, plate IS. October, 1917 « .18 



12. A Synopsis of the Bats of ' Calif omia, by Hilda Wood OrinnelL Pp. 223-404, 



plates 14-24, 24 text figures. January 31, 1918 _ - 2.00 



18. The Pacific Coast Jays of the Oenus Aphelocoma, by H. S. Swarth. Pp. 



405-422, 1 figure in text. February 23, 1918 „ -^ JW 



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



by Joseph Grlnnell. Pp. 423-430. 



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



arinnell. Pp. 431-433. 



Nos. 14 and 15 in one cover. April, 1918 16 



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



504, plates 25-29, 16 text figures. May, 1918 , 75 



17. The Subspecies of the Mountain Chickadee, by Joseph GrinneU. Pp. 505- 



515, 3 text figures. 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 figures 



in text. June, 1918 20 



Index in preparation. 

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

 ber, 1917 „ „ .85 



2. An Unusual Extension of the Distribution of the Shlpworm in San Fran- 

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

 8. Description of Some New Species of Polynoidae from the Coast of Cali- 

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



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



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



5. Crithidia euryophthalmi, sp. nov., from the Eemipteran Bug, EuryopMTialinut 



convivus Stai, by Irene McCulloch. Pp. 75-88, 35 text figxires. Decem- 

 ber, 1917 - - J.8 



6. On the Orientation of 'Erythr apsis, 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. 103-184, 14 figures in text. January, 

 1918 85 



8. The Function of the Giant Fibers in Earthworms, by Johii 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 William C. Boeck. Pp. 145-149. December, 1917 _ .05 



10. The Musculature of Eeptanchris maculattis, by Pirie Davidson... Pp. 151-170, 



12 figures in text. March, 1918 88 



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 democratica 



Relative to the Temperature of the Sea, by Ellis L. Michael. Pp. 289-298, 



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



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



E. L. Packard. Pp. 299-336, plates 12-18, 6 figs, 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 



Vol. 21. 1. A Revision of the Microtus Calif ornicus Group of Meadow Mice, by Rem- 

 ington Kellogg. Pp. 1-42, 1 figure in text. December, 1918 50 



