282 INDEX TO NORTH AMERICAN GEOLOGY, PALEONTOLOGY, [bull. 189. 
Paleontology— Continued. 
a and species described— Continued. 
Spirifer audaculus var. eatoni Hall, Grabau, 
2086. 
biblicatus Hall, Weller, 6006. 
bimesialis Hall?, Girty, 2039. 
cameratus Morton, Beede, 387. 
canandaiguae n. sp., Hall and Clarke, 
2261a, 2263, 2268. 
carinatus, n. sp., Rowley, 4677a. 
centronatus Winchell, Girty, 2038. 
var. semifurcatus n. var., Girty, 2038. 
conieulus n. sp., Girty, 2039. 
consobrinus d'Orbigny, Grabau, 2038. 
crispatus n. sp., Hall vnd Clarke, 2261a, 
2263, 2268. 
deltoideus Herrick, Lane, 3400. 
disjunct us var. animasensis n. var., Girty, 
2039. 
disjunctus var. sulsifer n. var., Hall and 
Clarke, 2261a, 2263, 2268. 
engelmanni Meek, Girty, 2038. 
granulosus (Conrad), Grabau, 2086. 
var. clintoni Hall, Grabau, 2086. 
grimesi Hall, Herrick and Johnson, 2465. 
huronensis Win., Lane, 3400. 
imbrex, Herrick and Johnson, 2465. 
insculptus n. sp., Rowley, 4677a 
keokuk Hall, Weller, 5986. 
louisianensis n. sp., Rowley, 4677a. 
macronotus Hall, Grabau, 2086. 
marionensis Shumard (?), Girty, 2038. 
marionensis Shumard, Weller, 5994. 
medialis Hall, Lane, 3400. 
mucronatus Conrad, Grabau, 2076. 
mucronatus var. posterus n. var., Hall 
and Clarke, 2261a, 2263, 2268. 
murchisoni Castelnau, Clarke, 971. 
newberryi, Hall and Clarke, 2261a, 2263, 
2268. 
rockymontanus Marcou, Girty, 2037. 
saffordi Hall, Clarke, 971. 
schucherti n. sp., Rowley, 4677a. 
stria tus Martin, Herrick and Bend rat, 
2464. 
striatus var. madisonensis n. var., Girty, 
2038. 
subattenuatus-Hall, Girty, 2038. 
subattenuatus, Hall?, Lane, 3400. 
subrotundatus Hall, Weller, 6006. 
tullius Hall, Grabau, 2086. 
williamsi n. sp., Hall and Clarke, 2261a, 
2263, 2268. 
(Cyrtia Dalman), Hall and Clarke, 2264. 
(Delthyris) sculptilis (Hall), Grabau, 2086. 
(Martinia) subumbonus Hall, Grabau, 
2086. 
(Reticulata) fimbriatus (Conrad), Gra- 
bau, 2086. 
sp. Girty, 2038. 
Spirifera aciculifera n. sp., Rowley, 4673. 
camerata Morton, Keyes, 3062. 
forbesi Norwood and Pratten, Keyes, 3062. 
grimesi Hall, Keyes, 3062. 
(cf. Athyris) insolita, Lane, 3400. 
keokuk Hall, Keyes, 3062. 
lineatoides Swallow, Keyes, 3062. 
Paleontology— Continued, 
Genera and species described— Continued. 
Spirifera macbridei, Calvin, 690. 
maia, Whitfield, 6099. 
marionensis Shumard, Keyes, 3062. 
mundula n. sp., Rowley, 4673. 
parryana Hall, Keyes, 3062. 
planoconvexus Shumard, Keyes, 3062. 
plicatella, Whiteaves, 6080. 
rockymontana? Whitfield, 6099. 
urbana, Calvin, 690. 
vanuxemi, Whitfield, 6099. 
ziczac, Whitfield, 6099. 
(Martinia) contracta, Whitfield, 6099. 
(Martinia) lineata, Whitfield, 6099, 
Spiriferina d'Orbigny, Hall and Clarke, 2261, 
2264. 
solidirostris White, Girty, 2038. 
Spirigerella, see Athyris (Spirigerella) Waa- 
gen, Hall and Clarke, 2261. 
Spirillina orbicularis n. sp., Bagg, 148. 
Spiroloculina planulata, Bagg, 148. 
Spirophyton, Udden, 5512. 
typum, James, 2895. 
sp., Weller, 5994. 
Spiroplecta americana Ehrenberg, Woodward 
and Thomas, 6433. 
clarki n. sp., Bagg, 143, 145, 148. 
Spirorbis Lamarck, Grabau, 2086. 
angulatus Hall, Grabau, 2086. 
anthracosia, Whitfield, 6099. 
assimilis n. sp., Clarke, 971. 
blairi n. sp., Miller and Gurley, 3998. 
Spisula Gray, Hall, 1272. 
(?) quadricentennialis Harris, Ball, 1265. 
(Hemimactra) Swainson, Dall, 1272. 
curtidens n. sp., Dall, 1272. 
delumdis conrad, Dall, 1272. 
densa n. sp., Dall, 1272. 
dodona n. sp., Dall, 1272. 
duplinensis n. sp., Dall, 1272. 
magnoliana n. sp., Dall, 1272. 
marylandica n. sp., Dall, 1272. 
subponderosa d'Orbigny, Dall, 1272. 
(Cymbophora) Gabb, Dall, 1272. 
(Leptospisula) Dall, Dall, 1272. 
(Schizodesma) Gray, Dall, 1272. 
Spodotribus n. gen., Scudder, 4890. 
terrulentus, Scudder, 4890. 
Spondylobolus McCoy, Hall and Clarke, 2260. 
hilli n. sp., Cragin, 1115. 
Spondylus bostrychites Guppy, Dall, 1272. 
dumosis Morton, Dall, 1272. 
echinatus Martyn, Dall, 1272. 
fragilis n. sp., Stanton, 5199. 
inornatus n. sp., Whitfield, 6101. 
rotundatus Heilprin, Dall, 1272. 
sp., Harris, 2313. 
Spongurus, Matthew, G. F., 3760. 
Sporangites huronensis Dawson (?) Girty, 
2035. 
radiatus n. sp., Dud en, 1554. 
Sportella Deshayes, Dall, 1281. 
compressa H. C. Lea, Dall, 1281. 
constricta Conrad, Dall, 1281. 
gregorioi Coss., Aldrich, 74. 
lioconcha n. sp., Dall, 1281. 
