768 INDEX. 
Page Page. 
Orchestiid e024. e See Ae eee Bae een 241 | Pacific Coast of the United States, with — 
Orchestoidea ae eee ee Bee ee ne 242 Notes on other Mollusks from the Same 
Onrchestoidearblolleyimemeeseeeeeesee eee aaee 242 Region. Descriptions of New Species of 
Orchestoidea biolleyi, from Costa Rica. A 
New Amphipod 
Crustacean, by | 
Thomas R. R. Steb- 
DLT ee eee oes 241 
Onmiscodesfalbilinea sees eee eee eeee eee eeeeee 65 
aM arill ake eee eeees eee eeone 65 
Orthisvarewata carrccces ee ee eee ieee 42 
GaTing faa Baas ers ee ce eee eee 39, 40 
CONCINN Ai hs ee ee eee 40 
(Dalmanella) leonensis...........-..- 45 
superestesis-------- 52 52,53 
dumontianasee asso eee oe eee ee 42 
ClIéllENSiS sens se eke eee aoe ee 42, 43 
elegantulamsaleasesoees see eee 40 
CMOACerataonswocces be aceeee se eee eee 40 
COHSSIPIUICAR some eee eee eee 419 
Rabellitesite tess). somes Serle 
POT VAN etc yarn sere ede cae cee eee ae re 42 
INTRA reece ee cose ee eee cet 40 
mnterlinea tase Soe an eee 41, 42° 
Ven GiC Ul asTl sia See cee See ee eee 40 
LleOnensis seo ose ean 40, 43, 50, 61 
Neyo bes So seaaoasonca caus ease 40, 41 
LDU OE DY eho es ae orn ee ees 42, 43 
GNU U cle er ae ee Ne eR es a 40 
MULGISECEA ss see eae ee em eerie 40 
NetTLOana Ase ean eee Sao eee e eeae 40 
Opercularigesen seecer a -Saecee ena 42 
parallela:. Bese Ayes ee aaa 41, 42 
perelewansicireecatee aac eee eae 40 
plano-CcOnVexXdeeeeee ee eee ere eeee ee 40 
QUACTANS ee Sacn ee ene ers 40 
subcarinatarcescces he eee rere 40 
SubCe OU atalsstas cote as ceereeeeeepnee 40 
SUPELSUCS a Sect: cre eee ase 40 
(cestudinaTio===se eee eee eee 35, 38, 40, 42, 48 
var. ventro-plana....-.- 42 
betragona ass ss-2 eee eee eee 43 
thiemel ssc ss sees eae eis aoe 59, 61 
TIO DOSS Sere a a eee 40, 41, 42, 54, 56 
OrthonamayallbescenSseeeeeeeereeeee rere eees 94 
Orthoptera; with the Description of one New 
Species. Notes on some Western, by An- 
drew Nelson Caudell.................-..-- 71 
Orthostixinger sees aaa ee eee eee 93 
Orthothietessar sae eee se ee eee ee ears OG 
Ortmann, Arnold E., Schizopod Crus- 
taceans in the U. S. National Museum: 
SchizopodstrompAlaskaseereeteeeeeeere 1 
Ostread brewerilieces sese ok see eee 347 
Gifam Now. aakee see oes ee rae Ne) 
Ovibos and Bootherium, with Notes on the 
latter Genus. Descriptions of Two New 
Species of Pleistocene Ruminants of the 
Genera, by James W. Gidley.-...........- 681 
Ovibos moschatus...........- Shh 681, 682, 683 
[Syamiboslicawiironsesseeeseeeeeeree 684 
VUKONENSIS= Sete sae oe terete eee 681 
IPAchiyGiChyaAlCLaSSa eee eeeEeeEreEreeeeeceeere 425 
Pachygrapsus transversus................- 23, 24 
Pachysoma brevicaudatum ..... SOOHTGQ0000 664 
e 
Mollusks from the, by William H. Dall.. — 245 
Pali pes rec cc Steven cle ie ete Sere ah ee ea 518 
Faludestrinas ss. aaace- cee ee eee 355 
PATON Qe a oe ke Sd aoe Oe a ae EE 354 
EEO NEE), COMOSMANO oo soca somcscesnoncsuss 347 
SeNChOSa eee eee eee ee 350, 352, 353, 354 
antoOsteusiarizOncebepes seas a ees 33 
CE ols era aren a i A eed we 33 
Pen ClOSUSEEE ese ECE Ree eee eer 33 
Sa Ga seco eee ae ee 33 
Pantosteus Santa-Anze, A New Species of 
Fish from the Santa Ana 
River, California. Description 
of, by John Otterbein Snyder. 33 
Paradoxurus brunneipes,................- 655, 656 
hermaphroditus.......- 654, 655, 656 
hermaphrodyta.............. 654 
MMUSAN Pare sss a eee 654 
P2davigusk eee ee se ae 655, 656 
Patay obDlod ON asa ceiac ce eee eee eee 617 
JER WA CONENE), TACOS SoscososcHencs 545, 547, 550, 569 
RATAIMNULICC A etree ee cee eee eee ree Re ee 580 
equatorialis........:... 546,547,580 
hawaiiensis......... 546, 547, 551, 580 
Parasitic Isopod Leidya distorta (Leidy) 
found on a New Host, by Harriet Rich- 
AT CIS OM ee See acces are eens eee ee a 23 
Parchment tenn Ul c Laer eie eee eee 741, 742 
Pareryl NTO PS ser eee ences Se nie der es 3 
Passing of the Israelites through the Red 
SOAS A rate serene, Meee wea chk ey eT 743 
Pa SSOVCD 2: Seats enor eee eee eens 717 
Gishessa Se eee ne ee 720 
Pate, William F., and Ray S. Bassler, The 
Late Niagaran Strata of West Tennessee. 407 
Patellawcie oases seeeceseee eon maoate 347, 362 
TMV LOOSNGMS ococsccocccscsoscccs 347, 356, 362 
PANO DLT ass nS pees ee ee een ep 132 
Habelliform Ss sa= essere ee 132 
Pearse, ArthurS. Descriptions of four New 
Species of Amphipodous Crustacea from 
LAOS) (CnwUbE Olt IMIGEDCO > nosacccscodooucescacece 27 
Rectenwand ci sOnl eee hea 350, 351, 352 
=. DT ATMEL 5 Ne an Meee een eR 349, 350 
crassicardomee oe sees ee eee 352, 403 
DBI EAD emo SaecanoeedgaocalosuSSS 354 
healeyi's sesh Skee ce eee eee 3538, 354 
(Hinnites) giganteus................ 355 
latiauritus..-.- GRE Re ete atic 354 
IMASTIONM A= Cae eer ee ee eee 350 
NUGbEr eaiscacs eats eee eee eee 354 
(O43) 0 ta eR IAs HATES Rca Sosa 353 
peckhaml 5422 S226 ee aware ae 348, 351 
PLOAVUSS -erc mesa eee aes 347 
DOWISITINEN OIG. coo cqscaseaceasoscote 3538, 354 
Sanchecruzensisu- ss eeeeee eee een 348, 349 
WtUSI SS so RG ee tee oe Se eee ee OOS: 
Pedipesin. sceice aces Fae eee ee eee 247 
liratUsas So ensteee esse eee eee 247 
Pelecypoda..-.--. 346, 347, 357, 360, 364, 375, 380, 382 
Peneroplidinges a5 se ciaccn eee ce heree eee 123 
Peneroplis so s2 cose cose se eee ee teense 123 
