INDEX. 
Rhynchonella, mutabilis Hall...... paneerscospass 
MUCLEOLALA FLANL.....000.020eceeee 
pyramidata Hall............ 
vellicata Hall............+. 
Rhynchonella ? bialveata Hall........... on 
lamellata Schuchett ............ 
Rhynchospira formosa (Hal))........ 66, 83, 84, 85, 
240, 289, XXI., XXXI. 
Rhynchotrema dentata (Hall).............. 159, X. 
formosa (Hall) ?........ 92, 94, 95, 
309, 328, XXXVI. 
inequivalvis (Castel.)......22, 23, 
40, 43, 46, 47, 159, X. 
Rhynchotreta transversa n. sp...83, 286, X XIX, 
Romingeria ? trentonensis 0. sp.............. 21, 46, 
47, 138, VI. 
RVOVGOUE FOVMACIONY ../cccscesnacconerecccenscoacess: 58, 76 
Rondout fauna, description of........ nacucnvaniiimeo) a 
Ss. 
Scenidium anthonensis Sard..........00 ain OR Oah 
43,157, X. 
insigne (Hall).....87, 308, XXXVI. 
Schizocrania filosa (H)........ 22, 28, 38, 146, IX. 
superinereta Barrett ............... 95, 
Schizophoria bisinuata ND. Sp............-+e0- 84, 85, 
278, XXXII. 
multistriata (Hall)..................92, 
307, XXXV. 
sp. ef. 8. striatula (Sch1.)........105, 
374, LII. 
Shawangunk conglomerate....... cBonodaocgaonS 54 
SilunieaehannASmeccsvecseentsscceeecesee Baavensiecesee 217 
Silurian formations. ..........-..2:.esseccss eeceeees- 04-80 
Skunnemunk conglomerate............seceens-- 108 
Solenopleura jerseyensis Weller........ 119, Il. 
Spirifer sp. undet.......... 65, 105, 369, 376, LIL. 
arenosus (Con.)..100, 101, 353, XLVIII. 
CUMCCULS MELE) Venue ansuarecreteleceseswencasees 354 
audaculus (Con.) ?........107, 382, LIII. 
bicostatus Hall....... 239 
concinnus Hall 83, 289, XXX. 
cyclopterus Hall.............ce-cssceoss- 82, 84, 
85 87, 88, 89, 90, 92, 287, 
314, XXX., XXXVIII. 
macropleurus (Con.)....85, 87, 88, 89, 90, 
288, 313, XXX., XX XVII. 
macrothyris Hall.......... 105, 375, LII. 
PIECOUELIS HELA Lircwacwesteccneceeeccercescsses 382 
murchisoni Castel........,..00 94, 95, 97, 
98, 99, 100, 101, 102, 329, 
354, XLII, XLVIII. 
murchisoni zone, The.................. 99 
DEArpassi N. SP.........000. 94, 330, XLII. 
octocostatus Hall.........83, 288, XXX. 
perlamellosus Hall.......... 87, 88, 89, 90, 
313, XXXVII., XX XVIII. 
PYTIAALUS HALL. ...cccresceceere: coecevree DOO 
vanuxemi Hall........... 79, 262, XXIV. ; 
ee 
461 
Spirifer vanuxemi, Hall, var. minor, n. 
VAP..000002.60, 209, XXI, 
sp. ef. S. varicosus Hall.......<...0.. 104 
Spirifera fimbriata Hall....ccccseeserreeecceree 36D 
Spirorbis sp. uUNeLt................220: seeeeeeescenes . 66 
Stillwater, fossils near...............++ 46 
Stormville sandstone. ..........0..csceecceseeeees 91 
Straparollus sp. undet............... 63, 246, XXII. 
Streptelasma corniculum H................ 21, 22, 23, 
35, 36, 39, 40, 42, 44, 
45, 46, 47, 136, VI. 
strictum Hall............000 86, 87, 90, 
92, 298, XX XIII. 
Streptorhynchus chemungensis var. pandora 
ELA) epee ee cecatccccassedvoncerscersetcccesscesesti a iGe 
Streptorhynchus pandora Hall......... sec. 367 
Stromatopora concentrica Goldf............. 66, 82, 
223, 271 
Strophecdonta sp. undet...........92, 94, 95, 260, 
301, 325, XLI. 
beckei Hall.........- 86, 87, 88, 89, 
91, 92, 300, XX XIII. 
bipartita (Hall)..63, 64, 65, 66, 68, 
69, 70, 71, 72, 226, XX. 
indenta (Con.)..85, 276, XX VI. 
inequiradiata Hall............. 105, 
levenworthana Hall........ 302 
magnifica (Hal)).....94, 95, 97, 98, 
99, 100, 101, 102, 324, 
345, XLI., XLV. 
perplana (Con.).....103, 366, LI. 
planulata Hall...........82, 84, 85, 
276, X XVII. 
(Leptostrophia) textilis H. 
CC ee eescwesees pesiessncs 226 
textilis Schuchett..........0+ 227 
varistriata (CON.)......-2-« 79, 82, 
83, 84, 85, 261, 274, 
XXIV., XXVII. 
varistriata var. arata Hall, 
85, 275, X XVII. 
Strophodonta beckti Hall .......sccceserecenssereee 300 
magnifica Hall..... 345 
nearpass? Barrett 226 
Perpland Halls... << .cecccsnscnnenes 366 
punctulifera Hall.........00 acct 277 
CELLS PEG eeceneentessateneerasionnces 226 
varistriata, Hall........ ...2.sc00 261 
Strophomena sp. undet............sec000 concpecul Rey Ie) 
alternat1 Meek...........:.s000 . 148 
bipartita Hall........cccccse. 226 
jilitexta Hall & Clarke........ 150 
incurvata (Shep.)....21, 22, 23, 24, 
25, 26, 27, 28, 29, 30, 31, 32, 35, 38, 
89, 40, 42, 43, 44, 45, 46, 150, IX. 
rugosa var. ventricosa Hall... 346 
woolworthana Hall.............. 278 
Strophomena? bipartita Schuchert.........0-.. 227 
Strophonella levenworthana (Hall)........ 86, 88, 
302, XXXIV. 
