eeks.] PALEONTOLOGY, PETROLOGY, AND MINERALOGY, 1904. 191 
tleontology — Continued. 
Genera and species described — Continued. 
Andromeda latifolia Newb., Hollick. 2. 
parlatorii Heer, Berry, 1. 
Aneimites fertilis n. sp., White (D.), 4, 5. 
Anisodexis, Broili, 1. 
Anodontopsis wabashensis n. sp., Kindle and 
Breger, 1. 
Anolcites Mojsisovics, Smith (J. P.), 2. 
Anomalina d'Orbigny, Bagg, 3. 
grosserugosa (Gumbel), Bagg, 3. 
Anomalocystites Hall, Schuchert, 4. 
cornutus Hall, Schuchert, 4. 
?disparilis Hall, Schuchert, 4. 
Anomia aculeata Gmelin, Glenn, 5. 
simplex d'Orbigny, Glenn, 5. 
Anomoepus E. Hitchcock, Lull, 1. 
crassus (C. H. Hitchcock), Lull, 1. 
cuneatus C. H. Hitchcock, Lull, 1. 
curvatus E. Hitchcock, Lull, 1. 
gracillimus (E. Hitchcock), Lull, 1. 
intermedius E. Hitchcock, Lull, 1. 
isodactylus C. H. Hitchcock, Lull, 1. 
minimus E. Hitchcock, Lull, 1. 
scambus E. Hitchcock, Lull, 1. 
Anoplotheca congregata n. sp., Kindle and 
Breger, 1. 
Anthocyrtium doronicum Haeckel, Martin, 6. 
Anticheiropus E. Hitchcock, Lull, 1. 
hamatus E. Hitchcock, Lull, 1. 
pilulatus E. Hitchcock, Lull, 1. 
Antipus E. Hitchcock, Lull, 1. 
bifidus E. Hitchcock, Lull, 1. 
flexiloquus E. Hitchcock, Lull, 1. 
Apatichnus E. Hitchcock, Lull, 1. 
circumagens E. Hitchcock, Lull, 1. 
minus (E. Hitchcock), Lull, 1. 
triridus Dawson, Matthew (G. F.), 1. 
Apeibopsis Heer, Perkins, 6. 
gaudinii Lx., Perkins, 6. 
heerii Lx., Perkins, 6. 
parva n. sp., Perkins, 6. 
Aphelops (?Diceratherium) brachyodus n. 
sp., Osborn, 9. 
ceratorhinus Douglass, Osborn, 9. 
fossiger Cope, Osborn, 9. 
jemezanus Cope, Osborn, 9. 
malacorhinus Cope, Osborn, 9. 
(?Peraceras) planiceps n. sp., Osborn, 9. 
Aphyllostylus n. gen., Whiteaves, 2. 
gracilis n. sp., Whiteaves, 2. 
Apiocystites Forbes, Schuchert, 4. 
elegans Hall, Schuchert, 4. 
ArachnichnusdehiscensE. Hitchcock, Lull, 1. 
Aralia coriacea Vel., Hollick, 2. 
palmata Newb., Berry, 1. 
Arachnichnus E. Hitchcock, Lull, 1. 
Arachnocrinus extensus W. & Sp., Rowley, 
Greene, 2. 
Area (Scapharca) arata Say, Glenn, 5. 
camuloensis n. sp., Osmont, 2. 
canalis Conrad, Osmont, 2. 
(Scapharca) clisea Dall, Glenn, 5. 
(Scapharca) elnia n. sp., Glenn, 5. 
(Scapharca) idonea Conrad, Glenn, 5. 
(Noetia) incile Say, Glenn, 5. 
(Barbatia) marylandica Conrad, Glenn, 5. 
Paleontology — Continued. 
Genera and species described — Continued. 
Area microdonta Conrad, Osmont, 2. 
montereyana n. sp., Osmont, 2. 
(Scapharca) staminea Say, Glenn, 5. 
(Scapharca) subrostrata Conrad, Glenn, 5. 
trilineata Conrad, Osmont, 2. 
(Barbatia) Virginia? Wagner, Glenn, 5. 
Archseocidaris M'Coy, Klem, 1. 
aculeatus Shumard, Klem, 1. 
agassizi Hall, Klem, 1. 
biangulatus Shumard, Klem, 1. 
cratis White, Klem, 1. 
dininni White, Klem, 1. 
edgarensis Worthen and Miller, Klem, 1. 
gracilis Newberry, Klem, 1. 
illinoiscnsis Worthen and Miller, Klem, 1. 
keokuk Hall, Klem, 1. 
legrandensis Miller and Gurley, Klem, 1. 
longispinus Newberry, Klem, 1. 
megastylus Shumard, Klem, 1. 
mucronatus Meek and Worthen, Klein, 1. 
newberryi Hambach, Klem, 1. 
norwoodi Hall, Klem, 1. 
ornatus Newberry, Klem, 1. 
shumardanus Hall, Klem, 1. 
spinoclavatus Worthen and Miller, 
Klem, 1. 
triplex White, Klem, 1. 
triserratus Meek, Klem, 1. 
trudifer White, Klem 1. 
wortheni Hall, Klem, 1. 
Archoblattina, Sellards, 1. 
beecheri, Sellards, 1. 
Arenicolites chemungensis n. sp., Whitfield, 3. 
Argoides E. Hitchcock, Lull, 1. 
isodactyletus (E. Hitchcock), Lull, 1. 
Argoides redfieldianus E. Hitchcock, Lull, 1. 
macrodactylotus (E. Hitchcock), Lull, 1. 
Aristolochia obscura Lx., Perkins, 6. 
Aristolochites acutus n. sp., Perkins, 6. 
apicalis n. sp., Perkins, 6. 
brandonianus n. sp., Perkins, 6. 
crassicrostatus n. sp., Perkins, 6. 
conoideus n. sp., Perkins, 6. 
cuneatus n. sp., Perkins, 6. 
curvata (Lx.), Perkins, 6. 
dubius n. sp., Perkins, 6. 
elegans n. sp., Perkins, 6. 
excavatus n. sp., Perkins, 6. 
globosus n. sp., Perkins, G. 
irregularis n. sp., Perkins, 6. 
latisulcatus n. sp., Perkins, 6. 
majus n. sp., Perkins, 6. 
ovoides n. sp., Perkins, 6. 
rugosus n. sp., Perkins, 6. 
sulcatus n. sp., Perkins, 6. 
Arthracantha punctobrachiata Williams, 
Wood (Elvira), 1. 
Arthrodendron n. gen., Ulrich, 1. 
diffusum n. sp., Ulrich, 1. 
Asaphis centenaria (Conrad), Glenn, 5. 
Ascodictyon Nicholson and Etheridge, jr., 
Ulrich and Bassler, 1. 
floreale n. sp., Ulrich and Bassler, 1. 
parvulum n. sp., Ulrich and Bassler, 1. 
siluriense Vine, Ulrich and Bassler, 1, 
