tJKIVEESITT OF OAIiIFOENIA PUBLICATIONS— (Continued) 



21. The Occurrence of a Ehythm In the Geotropism of Two Species of 



Plankton Copepods When Certain Eecurring External Conditions are 

 Ahsent, by Calvin O. Esterly. Pp. 393-400. March, 1917 10 



22. On Some New Species of Aphroditlda« from the Coast of California, 



by Christine Essenberg. Pp. 401-430, plates 31-37. March, 1917. 35 



23. Notes on the Natural History and Behavior of Emerita analoga (Stimp- 



son), by Harold Tupper Mead. Pp. 431-438, 1 text figure. April, 

 1917 - 10 



24. Ascidians of the Littoral Zone of Southern California, by William E. 



Eitter and Euth A. Forsyth. Pp. 439-512, plates 38-46. August, 1917 1.00 



▼oL 17. 1. Diagnoses of Seven New Mammals from East-Central California, by 

 Joseph Grinnell and Tracy I. Storer. Pp. 1-8. 

 2. A New Bat of the Genus Myotis from the High Sierra Nevada of Cali- 

 fornia, by Hilda Wood Grinnell. Pp. 9-10. 



Nos. 1 and 2 In one cover. August, 1916 „ .10 



S. Spelerpes platycephahis, a New Alpine Salamander from the Yosemlto 

 National Park, California, by Charles Lewis Camp. Pp. 11-14. Sep- 

 tember, 1916 .„ _ _ .06 



4. A New Spermophile from the San Joaquin Valley, California, with 

 ■ Notes on Ammospermopliilus nelsoni iielaoni Merriam, by Walter P. 



Taylor. Pp. 15-20, 1 figure in text. October, 1916 _ .06 



5. Habits and Food of the Eoadrunner In California, by Harold C. Bryant. 



Pp. 21-58, plates 1-4, 2 figures In text. October, 1918 M 



6. Description of Bufo canorus, a New Toad from the Yosemlte National 



Park, by Charles Lewis Camp. Pp. 59-62, 4 figures In text. Novem- 

 ber. 1916 __ .06 



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



Form from the Sierra Nevada and Systematic Notes on Other Cali- 

 fornia Lizards, by Charles Lewis Camp. Pp. 63-74. December, 1916 .10 



8. Osteologlcal Relationships of Three Species of Beavers, by F. 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 CaUf omla, 



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



10. A Distributional List of the Amphibians and Eeptiles of California, 



by Joseph Grinnell and Charles Lewis Camp. Pp. 127-208, 14 figures 



In text. July, 1917 85 



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



Occurring in California, by H. S. Swarth and Harold C. Bryant. Pp. 

 209-222, 2 figures In text, plate 13. October, 1917 15 



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. De- 

 cember, 1917 20 



3. Description of Some New Species of Polynoidae From the Coast of 



California, by Christine Essenberg. Pp. 45-60, plates 2-3. October, 



1917 .20 



4. New Species of Aphinomidae From the Pacific Coast, by Christine 



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



