UNIVEHSITY OF CAIiIFOENIA PUBLICATIONS— (Contxuuod) 



21. The Occurrence of a BUythin in the Geotropism of Two Species of 



Plankton Copepods When Certain Becurrlng External Conditions are 

 Absent, by Calvin O, Esterly. Pp. 393-400. March, 1917 „ _._ .10 



22. On Some New Species of Aphroditldae from the Coast of CaUfomla, 



by Christine Essenberg. Pp. 401-430, plates 31-37. March, 1917.._ S6 



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. 



Bitter and Buth 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 Grlnnell and Tracy I. Storer. Pp. 1-8. 

 S. A New Bat of the Genus Myotia from the High Sierra Nevada of Cali- 

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



Nos. 1 and 2 in one cover. August, 1916 JLO 



5. Spelerpes platycephalvs, a New Alpine Salamander from the Yosemlte 



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

 tember, 1916 . _. .09 



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

 Notes on Ammospermophilus nelsoni nelsoni Merriam, by Walter P. 

 Taylor. Pp. 15-20, 1 figure in text. October, 1916 „ .05 



6. Habits and Food of the Boadruuner in California, by Harold O. Bryant. 



Pp. 21-58, plates 1-4, 2 figures in text. October, 1916 .36 



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



Park, by Charles Lewis Camp. Pp. 69-62, 4 figures in text. Novem- 



ber, 1916 .08 



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 Belatlonships of Three Species of Beavers, by F. Harvey 



Holden. Pp. 75-114, plates 6-12, 18 text figures. March, 1917 40 



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



by Charles Lewis Camp. Pp. 116-125, 3 text figures. February, 1917 .10 



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



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



In text. July, 1917 85 



11. A Study of the Baces 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 „ „ 36 



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 



5. Crithidia Euryophthalmi, sp. nov., from the Hemipteran Bug, Euryoph- 



thalmus Convivus Stai, by Irene McCulloch. Pp. 75-88, 35 text fig- 

 ures. December, 1917 15 



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



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



7. The Transmission of Nervous Impulses in Eolation to Locomotion in 



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

 January, 1918 (In press) 



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



Pp. 135-144, 1 figure in text. January, 1918 (In press) 



9. A Eapid Method for the Detection of Protozoan Cysts in Mammalian 



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



