288 
OCCASIONAL PAPERS OF THE CALIFORNIA ACADEMY OF SCIENCES 
Number 158 
[3789] Van Denburgh, John, and Joseph Richard Slevin. 
1921. A list of the amphibians and reptiles of the 
Peninsula of Lower California, with notes on the species 
in the collection of the Academy. Proceedings of the 
California Academy of Sciences, ser. 4, 11(4[8 July]): 
49-72. 
[2804] Mailliard, Joseph. 1921. Notes on the birds and 
mammals of Siskiou County, California. Proceedings of 
the California Academy of Sciences, ser. 4, 11(5 
[11 July]):73-94. 
[3790] Van Denburgh, John, and Joseph Richard Slevin. 
1921. Preliminary diagnoses of new species of reptiles 
from islands in the Gulf of California, Mexico. Pro¬ 
ceedings of the California Academy of Sciences, ser. 4, 
11(6[30 July]):95-98. 
[261] Banks, Nathan. 1921. New Californian spiders. 
Proceedings of the California Academy of Sciences, ser. 
4, 11 (7[29 September]):99-102, 5 figs. 
[22] Alexander, Charles P. 1921. Undescribed Tipulidae 
(Diptera) from Western North America, Part II. Pro¬ 
ceedings of the California Academy of Sciences, ser. 4, 
11 (8[29 September]): 103-107. 
[4013] Wright, W. S. 1921. Description of a new species of 
Pern from California. Proceedings of the California 
Academy of Sciences, ser. 4, 11(9[29 September]): 
109-110. 
[3798] Van Duzee, Edward P. 1921. Characers of some new 
species of North American hemipterous insects, with 
one new genus. Proceedings of the California Academy 
of Sciences, ser. 4, 11(10[15 October]): 111-134. 
[3799] Van Duzee, Edward P. 1921. Our North American 
species of Strongylocoris Hemiptera. Proceedings of the 
California Academy of Sciences, ser. 4, 11(11 [15 Octo¬ 
ber]): 135-136. 
[3800] Van Duzee, Edward p. 1921. Characters of eight 
new species of North American Anthocoridae or flower 
bugs. Proceedings of the California Academy of Sci¬ 
ences, ser. 4, 11(12[15 October]): 137-144. 
[3801] Van Duzee, Edward P. 1921. A study of North 
American grass-bugs of the genus Irbisia. Proceedings 
of the California Academy of Sciences, ser. 4, 11(13 
[15 October]): 145-152. 
[1759] Hanna, G Dallas, Edwin C. Van Dyke, Millard C. 
Van Duzee, Frank R. Cole, J. R. Malloch, Charles P. 
Alexander, Theodore H. Frison, and Alexander 
MacGillivray. 1921. Insects of the Pribilof Islands, 
Alaska. Proceed-ings of the California Academy of 
Sciences, ser. 4, 11(14[2 November]): 153-195, 7 figs. 
[789] Cole, Frank R., and A. L. Lovett. 1921. An annotated 
list of the Diptera (flies) of Oregon. Proceedings of the 
California Academy of Sciences, ser. 4, 11(15[14 De¬ 
cember]): 197-344, 54 figs. 
[912] Curran, C. Howard. 1921. Revision of the Pipiza 
group of the family Syrphidae (flower-flies) from north 
of Mexico. Proceedings of the California Academy of 
Sciences, ser. 4, 11(16[31 December]):345-393, 30 figs. 
[3791] Van Denburgh, John, and Joseph Richard Slevin. 
1921. Preliminary diagnoses of more new species of 
reptiles from islands in the Gulf of California, Mexico. 
Proceedings of the California Academy of Sciences, ser. 
4, 11(17[17 December]):395-398. 
[397] Berry, S. Stillman. 1922. Fossil chitons of Western 
North America. Proceedings of the California Academy 
of Sciences, ser. 4, 11(18[16 May]):399-526, 11 figs., 
16 pis. 
[1062] Dickerson, Roy Ernest. 1922. Tertiary and 
Quaternary history of the Petaluma, Point Reyes and 
Santa Rosa quadrangles. Proceedings of the California 
Academy of Sciences, ser. 4, 11(19[10 July]):527-601, 
34 pis. 
[1689] Grunsky, Charles E. 1922. Report of the President of 
the Academy for the year 1921. Proceedings of the Cali¬ 
fornia Academy of Sciences, ser. 4, 11(20[21 August]): 
603-610. 
[1388] Evermann, Barton Warren. 1922. Report of the 
director of the museum for the year 1921. Proceedings 
of the California Academy of Sciences, ser. 4, 11(21 
[21 August]):611-653. 
[1690] Grunsky, Charles E. 1923. Report of the President of 
the Academy for the Year 1922. Proceedings of the Cali¬ 
fornia Academy of Sciences, ser. 4, 11 (22[22 August]): 
655-662. 
[1389] Evermann, Barton Warren. 1923. Report of the 
director of the museum for the year 1922. Proceedings 
of the California Academy of Sciences, ser. 4, 11 (23 [22 
August]):663-700. 
[2805] Mailliard, Joseph. 1923. Field work among the birds 
and mammals of the northern coast of California in 
1921. Proceedings of the California Academy of Sci¬ 
ences, ser. 4, 12(1 [2 January]): 1-26. 
[1095] Dunn, Emmett Reid. 1923. New species of 
Hynobius from Japan. Proceedings of the California 
Academy of Sciences, ser. 4, 12(2 [2 January]):27-29. 
[1726] Hanna, G Dallas. 1923. Upper Miocene lacustrine 
mollusks from Sonoma County, California. Proceedings 
of the California Academy of Sciences, ser. 4, 12(3 
[2 January]):31-41, 3 pis. 
[1755] Hanna, G Dallas, and Emmet Rixford. 1923. Notes 
on some land snails of the Sierra Nevada Mountains, 
with description of a new species. Proceedings of the 
California Academy of Sciences, ser. 4, 12(4[2 Janu- 
ary]):43-50, 1 pi. 
[1727] Hanna, G Dallas. 1923. Anew species of Carychium 
from Vancouver Island, British Columbia. Proceedings 
of the California Academy of Sciences, ser. 4, 12(5 
[2 January]):51-53, 1 fig. 
[3417] Slevin, Joseph Richard. 1923. Expedition of the 
California Academy of Sciences to the Gulf of 
California in 1921. General Account. Proceedings of the 
California Academy of Sciences, ser. 4, 12(6[2 June]): 
55-72, map. 
[774] Cockerell, T. D. A. 1923. Expedition of the California 
