WEEKS.] 
PETROLOGY, AND MINERALOGY FOR 1892-1900. 
171 
Paleontology— Continued. 
Genera and species described — Continued. 
Agaricocrinus Troost, Keyes, 3061. 
adamensis n. sp., Miller and Gurley, 4000. 
americanus (Koemer), Keyes, 3061. 
americanus (Roemer), Wachsmuth and 
Springer, 57t'»r.;>. 
americanus, var. tuberosus (Hall) W. and 
Sp., Wachsmuth and Springer, 5765a. 
arculii n. sp., Miller and Gurley, 3997d. 
bellatrema Hall, Wachsmuth and Spring- 
er, 5766a. 
bellatrema, var. major W. and Sp. (nov. 
var.), Wachsmuth and Springer, 5765a 
blairi n. sp., Miller, 3995. 
brevis (Hall), Wachsmuth and Springer, 
5765a. 
bullatus Hall, Wachsmuth and Springer, 
5765a. 
chouteauensis n. sp., Miller, 3995. 
conicus W. and Sp. (nov. spec), Wachs- 
muth and Springer, 5765a. 
convexus (Hall) W. and Sp., Wachsmuth 
and Springer, 5765a. 
coreyi (Lyon and Cass.), Wachsmuth and 
Springer, 5765a. 
crassus Wetherhy, Wachsmuth and 
Springer, 5765a. 
dissimilis n. sp., Miller, 3992. 
elegans Wetherhy, Wachsmuth and 
Springer, 5765a. 
excavatus Hall, Wachsmuth and Springer. 
5765a. 
excavatus, Whitfield, 6098. 
fiscellus (Hall i, Wachsmul b and Springer, 
5765a. 
germanus n. sp., Miller, 3995. 
gorbyi n. sp., Miller, 3992. 
gracilis M. and W., Wachsmuth and 
Springer, 5765a. 
hodgsoni n. sp., Miller and Gurley, 3999. 
illinoisensis n. sp., Miller and Gurley, 3999. 
indianensis n. sp., Miller, 3992. 
Inflatus Hall, Wachsmuth and Springer, 
5765a. 
iowensis n. sp., Miller and Gurley, 4003. 
keokukensis n. sp., Miller and Gurley, 
4003. 
louisianensis n. sp., Rowley, 4677. 
nodosus Meek and Worthen, Wachsmuth 
and Springer, 5765a. 
nodulosus, var. macadamsi (Worthen), 
Wachsmuth and Springer, 5765a. 
nodulosus Worthen, Wachsmuth and 
Springer, 5765a. 
ornotrema, Whitfield, 6098. 
pentagonus Hall, Keyes, 3061. 
pentagonus, Whitfield, 6098. 
planoconvexus Hall, Keyes, 3061. 
planoconvexus Hall, Wachsmuth and 
Springer, 5765a. 
profundus n. sp., Miller and Gurley, 3997d. 
pyramidatus (Hall), Wachsmuth and 
Springer, 5765a. 
pyramidatus, Whitfield, 6098. 
sampsoni n. sp., Miller, 3995. 
sampsoni S. A. Miller, Wachsmuth and 
Springer, 5765a. 
Paleontology— Continued. 
Genera and species described— Continued. 
Agaricocrinus splendens, Miller, 3992. 
splendens n. sp., Miller and Gurley, 3991. 
splendens S. A. Miller, Wachsmuth and 
Springer, 5765a. 
stellatus Hall, Wachsmuth and Springer, 
5765a. 
tugurium n. sp., Miller and Gurley, 3997d. 
Whitfield i Hall, Wachsmuth and Springer, 
5765a. 
wortheni Hall, Wachsmuth and Springer, 
5765a. 
Agasoma barkerianum n. sp., Cooper, 1071. 
(Trophoscyon) n. subgen., Cooper, 1071. 
? (Trophoscyon) kernianum, n. sp., 
Cooper, 1071. 
Agassizocrinus ovalis n. sp., Miller and Gur- 
ley, 4000. 
Agathaumus, Case, 768. 
Agathaumus, Marsh, 3701. 
Agelacrinus blairi n. sp., Miller, 3995. 
faberi S. A. Miller, Miller and Faber, 3997. 
legrandensis n. sp., Miller and Gurley, 
3997c. 
pileus, Miller and Faber, 3994. 
pulaskiensis n. sp., Miller and Gurley, 
3997c. 
Aglithodictya n. gen., Hall and Clarke, 2269, 
2270. 
numulina n. sp., Hall and Clarke, 2270, 
2276. 
Agnostus Brongniart, Matthew, 3770, 3788. 
acadicus Hartt, Matthew, 3770. 
acadicus Hartt, Vogdes, ">754. 
acutilobus Matthew, Vogdes, 5754. 
americanus Billings, Vogdes, 5754. 
bellatrema Hall, Wachsmuth and 
Springer, 5765a. 
bellatrema, var. major W. and Sp. (nov. 
var.), Wachsmuth and Springer, 5765a. 
bidens, Meek, Walcott, 5816. 
bidens Meek, Vogdes, 5754. 
canadensis Billings, Vogdes, 5754. 
coloradensis Shuinard, Vogdes, 5754. 
communis Hall and Whitfield, Vogdes, 
5754. 
davidis Hicks, Matthew, 3770. 
deelivis, Matthew, 3770. 
desideratus Walcott, Vogdes, 5754. 
disparilis Hall, Vogdes, 5754. 
fabius Billings, Vogdes, 5754. 
fallax, Matthew, 3770. 
var. concinnus, Matthew, 3770. 
var. trilobatus, Matthew, 3770. 
var. vir, Matthew, 3770. 
fissus Lindgren, Matthew, 3770, 3776. 
var. trifissus n. var., Matthew, 3770. 
galba Billings, Vogdes, 5754. 
gibbus Linnarsson, Matthew, 3770. 
var. acutilobus, Matthew, 3770. 
var. partitus, Matthew, 3770. 
interstrictus White, Walcott, 5816. 
josepha Hall, Vogdes, 5754. 
laevigatas Dalman var., Matthew, 3776. 
laevigatas Dalman, Matthew, 3770. 
ciceroides n. var., Matthew, 3770. 
