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OCCASIONAL PAPERS OF THE CALIFORNIA ACADEMY OF SCIENCES 
Number 158 
SIDA NESOGENA JOHNSTON 1931, 2314 
SIDA SALVIAEFOLIA VAR. SUBMUTICA HOWELL 
1952, 2372 
SIGARETUS COSTATUS COOPER 1896, 863 
SIKKIM, 784 
SILENE DORRII KELLOGG 1863, 2516 
SILICOFLAGELLATES, 2817, 2818, 2819, 2820, 2821 
SILICOSIGMOILINA CALIFORNIA CUSHMAN & 
CHURCH 1929, 924 
SILICOSIGMOILINA CUSHMAN & CHURCH 1929, 
924 
SILIS ABRUPTA GREEN 1966, 1631 
SILIS ABSTRUSA GREEN 1966, 1631 
SILIS ACUTA GREEN 1966, 1631 
SILIS ANGELICA GREEN 1966, 1631 
SILIS ANGULATA GREEN 1966, 1631 
SILIS ARIDA GREEN 1966, 1631 
SILIS BARRI GREEN 1966, 1631 
SILIS CARMELITA GREEN 1966, 1631 
SILIS CONSTRICTA GREEN 1966, 1631 
SILIS CRUCIALIS GREEN 1966, 1631 
SILIS DENTIGERA GREEN 1966, 1631 
SILIS DIFFICILIS OCCIDENS GREEN 1966, 1631 
SILIS DISJUNCTA GREEN 1966, 1631 
SILIS DIVARICATA GREEN 1966, 1631 
SILIS EGREGIA GREEN 1966, 1631 
SILIS EMARGINATA GREEN 1966, 1631 
SILIS EXIMIA GREEN 1966, 1631 
SILIS FABULOSA GREEN 1966, 1631 
SILIS FENDERI GREEN 1966, 1631 
SILIS HOWDENI GREEN 1966, 1631 
SILIS INCONGRUA GREEN 1966, 1631 
SILIS INSOLITA GREEN 1966, 1631 
SILIS INSPERATA GREEN 1966, 1631 
SILIS INTRO VERS A GREEN 1966, 1631 
SILIS KNULLI GREEN 1966, 1631 
SILIS LASSENI GREEN 1966, 1631 
SILIS LATESTYLA GREEN 1966, 1631 
SILIS LOBATA GREEN 1966, 1631 
SILIS MACCLAYI GREEN 1966, 1631 
SILIS MONTANICA GREEN 1966, 1631 
SILIS NEVADICA GREEN 1966, 1631 
SILIS OREGONENSIS GREEN 1966, 1631 
SILIS PARALLELA GREEN 1966, 1631 
SILIS PERFOLIATA GREEN 1966, 1631 
SILIS PROTRACTA GREEN 1966, 1631 
SILIS PROXIMA GREEN 1966, 1631 
SILIS RECTA GREEN 1966, 1631 
SILIS REVERSAGREEN 1966, 1631 
SILIS SIMULATA GREEN 1966, 1631 
SILIS SINGULARIS GREEN 1966, 1631 
SILIS SOLITARIA GREEN 1966, 1631 
SILIS STRATELLA GREEN 1966, 1631 
SILIS SUBTRUNCTA 1966, 1631 
SILIS TARDELLA GREEN 1966, 1631 
SILIS TENUATA GREEN 1966, 1631 
SILIS THERMALIS GREEN 1966, 1631 
SILIS TRIPLICATA GREEN 1966, 1631 
SILIS URSINA GREEN 1966, 1631 
SILIS VANDYKEI GREEN 1966, 1631 
SILPHAAENESCENS CASEY 1886, 710 
SILURIAN, 1898, 3911, 3923 
SILURICHTHYS SANGUINEUS ROBERTS 1989, 3279 
SILURIFORMES, 1427 
SILURIF ORMES: CETOPSIDAE, 1426 
SILURIFORMES: SILURIDAE, 1811, 3282 
SILVANUS TROPICALIS VAN DYKE 1953, 3818 
SILVER, 765, 1102 
SILVESTRIELLUS SCHLINGERI COSCARON & PHI¬ 
LIP 1979, 870 
SIMANTHEDON LINSLEYI ZAVORTINK 1975, 4028 
SIMANTHEDON ZAVORTINK 1975, 4028 
SIMMONDSIA PABULOSA KELLOGG 1859, 2468 
SIMPSON (GEORGE GAYLORD), 2661 
SINDOSCOPUS DAWSON 1977, 1040 
SINEA UNDULATA UHLER 1894, 3728 
SINGA MOESTA BANKS 1898, 259 
SINUM CORYLIFORME ANDERSON & HANNA 1925, 
51 
SINUM DICKERSONI WARING 1917, 3858 
SIPHOCORYNE BICAUDATA ESSIG & KUWANA 
1918, 1376 
SIPHOCORYNE JAPONICA ESSIG & KUWANA 1918, 
1376 
SIPHO HALLII DALL 1873, 944 
SIPHONALIA BICARINATA DICKERSON 1915, 1057 
SIPHONALIA CLARKI DICKERSON 1914, 1055 
SIPHONALIA PHOSOIDEA HANNA & ISRAELSKY 
1925,1753 
SIPHONALIA POSOENSIS ANDERSON & MARTIN 
1914, 53 
SIPHONALIA TULARENSIS ANDERSON & HANNA 
1925, 51 
SIPHONAPTERA, 1903, 2737 
SIPHONARIA BRANNANI STEARNS 1873, 3534 
SIPHONOCLADUS PUSILLOIDES SETCHELL & 
GARDNER 1930, 3388 
SIPHONOPHORAPSEUSTES CHAMBERLIN 1923, 716 
SIPHOSTOMA SINALOAE JORDAN & STARKS 1896, 
2343 
SIPHOSTOMA STARKSII JORDAN & CULVER 1895, 
2333 
SIRENIA, 2590 
SIRIELLA PACIFICA HOLMES 1900, 1908 
SISENES CHAMPIONI HORN 1894, 1935 
SISTRUM CRETACEUM COOPER 1896, 863 
SISYMBRIUM KEARNEYI ROLLINS 1953, 3291 
SISYMBRIUM REFLEXUM KELLOGG 1861, 2486 
SISYRINCHIUM CERNUUM (BICKNELL) KEARNEY 
1949 [COMB. NOV.], 2369 
SISYRINCHIUM FLAVIDUM KELLOGG 1860, 2479 
SITALCINA BIFURCATA BRIGGS 1968, 589 
