170 INDEX TO NORTH AMERICAN GEOLOGY, PALEONTOLOGY, [bull.189. 
Paleontology— Continued. 
<;nii at and, species described— Continued. 
Actinocrinus bischoffi n. sp., Miller and Gur- 
ley, 4001. 
blairi n. sp., Miller, 3995. 
botruosus n. sp., Miller and Gurley, 3997d. 
brittsi n. sp., Miller, 3995. 
chouteauensis S. A. Miller, Wachsmuth 
and Springer, 5765a. 
chouteauensis (?) n. sp., Miller, 3995. 
clarus, Whitfield, 6098. 
daphne Hall, Wachsmuth and Springer, 
5765a. 
erraticus n. sp., Miller and Gurley, 3997a. 
fossatus n. sp., Miller, 3995. 
foveatus n. sp., Miller and Gurley, 3998. 
gibsoni n. sp., Miller and Gurley, 3997a. 
glans Hall, Keyes, 3061. 
glans, Whitfield, 6098. 
gracilis W. and Sp. (n. sp.) Wachsmuth 
and Springer, 5765a. 
grandis n. sp., Miller and Gurley, 3991. 
griffithi W. and Sp. (n.sp.), Wachsmuth 
and Springer, 5765. 
jessiese n. sp., Miller and Gurley, 3999. 
jugosus Hall, Wachsmuth and Springer, 
5765a. 
limabrachiatus, Whitfield, 6098. 
lobatus Hall (not Worthen), Wachsmuth 
and Springer, 5765a. 
lowei Hall, Wachsmuth and Springer, 
5765a. 
magnificus W. and Sp. (n. sp.), Wachs- 
muth and Springer, 5765a. 
monticuliferus n. sp., Miller and Gurley, 
3997c. 
multiradiatus Shumard, Wachsmuth and 
Springer, 5765a. 
multiramosus W. and Sp. (n. sp.), Wachs- 
muth and Springer, 5765a. 
obesus n. sp., Keyes, 3061. 
opusculus Whitfield, 6098. 
pallubrum n. sp., Miller and Gurley, 4000. 
pernodosus Hall. Wachsmuth and 
Springer, 5765a. 
pettisensis n. sp., Miller and Gurley, 4001. 
plagosus n. sp., Miller and Gurley, 3997a. 
proboscidialis Hall, Keyes, 3061. 
quaternarius, Whitfield, 6098. 
rusticus, Whitfield, 6098. 
sampsoni n. sp., Miller and Gurley, 4001. 
scitulus Meek and Worthen, Wachsmuth 
and Springer, 5765a. 
sedaliensis n. sp., Miller, 3995. 
semimultiramosus n. sp., Whitfield, 6113. 
senectusn. sp., Miller and Gurley, 4003. 
sobrinus n. sp., Miller and Gurley, 4001. 
spectabilis n. sp., Miller and Gurley, 4001. 
subpulchellus n. sp., Miller and Gurley, 
4001. 
subscitulus n. sp., Miller and Gurley, 4001. 
tenuisculptus McChesney, Wachsmuth 
and Springer, 5765a. 
thetis, Whitfield, 6098. 
trijugis (S. A. Miller), Wachsmuth and 
Springer, 5765a. 
tuberculosus W. and Sp. (n.sp.), Wachs- 
muth and Springer, 5765a. 
Paleontology— Continued. 
Genera and species described— Continued. 
Actinocrinus verrucosus Hall, Keyes, 3061. 
verrucosus Hall, Wachsmuth and 
Springer, 5765. 
Actinocyst is variabilis n. sp., Whiteaves, 6074. 
Actinodesma subrecta, Whitfield, 6099. 
Actinodictya Hall, Hall and Clarke, 2269, 2270. 
placenta Hall, Hall and Clarke, 2269, Ji'To. 
Actinodon, Case, 767. 
Actinomya n. gen., Ulrich, 5539. 
kentonensis n. sp., Ulrich, 5535. 
modioliformis Meek and Worthen, Ulrich, 
5539. 
subcarinata n. sp. , Ulrich, 5539. 
Actinophorus clarki, Claypole, 994. 
Actinopteria Hall, Grabau, 2086. 
boydi Hall, Grabau, 2086. 
communis Hall, Clarke, 971. 
decussata Hall, Grabau, 2086. 
eschwegii n. sp., Clarke, 976. 
humboldti n. sp., Clarke, 976. 
insignis n. sp., Clarke, 971. / 
Actinopteris quadrifolia (Emmons) Fontaine, 
Ward, 5857. 
Actinosepia canadensis n. gen. et sp., Whit- 
eaves, 6092. 
Actinostroma Nicholson sp., Girty, 2038. 
Actinotrypa, Simpson, 4983. 
pecularis (Rominger), Keyes, 3062. 
Acylophorus immotus n. sp., Scudder, 4900. 
Adalia subversa n. sp., Scudder, 4900. 
Adelphoceras, Hyatt, 2819. 
Adeorbis dalli n. sp., Harris, 2316. 
holmesi Dall, Dall, 1259. 
leain. sp., Dall, 1259. 
liniferus Aid., Harris, 2316. 
strigillatus n. sp., Dall, 1259. 
sylvajrupis n. sp., Harris, 2316. 
Adiantites orovillensis Fontaine, Ward, 5857. 
praelongus, Dawson, 1436. 
Admetopsis humerosa n. sp., Stanton, 5191. 
rhomboides Meek, Stanton, 5191. 
subfusiformis Meek, Stanton, 5191. 
Adocetus buprestoides n. sp., Scudder, 4900. 
Adrana aldrichiana n. sp., Harris, 2307. 
Aechimina Jones and Holl, Grabau, 2086. 
marginata Ulrich, Grabau, 2086. 
Aeglina (Cyclopyge), Beecher, 366. 
Aelurodon meandrinus n. sp., Hatcher, 2335. 
taxoides n. sp., Hatcher, 2335. 
Aemondia ferrissi, Cragin, 1116. 
JEscupophyllum hastingsense n. sp., Dawson, 
1453. 
iEsiocrinus n. gen., Miller and Gurley, 3991. 
angulatusn. sp., Miller and Gurley, 3997a. 
basilicus n. sp., Miller and Gurley, 3991. 
ganaster n. sp., Miller and Gurley, 3991. 
harii n. sp., Miller and Gurley, 3991. 
magnificus n. sp., Miller and Gurley, 3991. 
Aesiocystites n. gen., Miller and Gurley, 3997c. 
priscus n. sp., Miller and Gurley, 3997c. 
Aesopus erectus, Harris, 2316. 
Aethocystites n. gen., Miller, 3995. 
sculptis n. sp., Miller, 3995. 
Agabus rathbuni n. sp., Scudder, 4900. 
Agaricocrinus (Troost) Hall, Wachsmuth and 
Springer, 5765a. 
