FOR    THE    YEARS    1901-1905,  INCLUSIVE. 
659 
Paleontology— Continued. 
Genera  and  species  described — Continued. 
Dolatocrinus  venustus  M.  &  G.,  Rowley, 
Greene,  11. 
wachsmuthi    n.    nom.,    Wood     (El- 
vira), 3. 
welleri   n.   sp.,   Rowley,   Greene,   9. 
sp.  ?,  Rowley,  Greene,  6. 
sp.,   Wood    (Elvira),   3. 
Doleropteris     pennsylvanica     L)n.     sp.. 
White   (D.).  10. 
Dolichobraehium    gracile    u.    gen.    and 
sp..  Williston.  23. 
Dolichopterus  Hall,  Grabau,  1. 
macrochirus   Hall,   Grabau,   1. 
Dolicborbyncbops   Williston.   Williston, 
14. 
"  osborni   Williston,   Williston,   14. 
osborni  n.  sp.,  Williston,  9. 
Dolichotoma  Bellardi,   Arnold.   L*. 
Donacopsis  Sandberger,  Dall,   8. 
Donax    (Linne)    Lamarck,  Arnold,  2. 
californica   Conrad,    Arnold,    2. 
laevigata  Deshayes,  Arnold,  2. 
sp.,  Ravn,  1. 
Dosinia  Scopoli,  Arnold,  2. 
Dosinia  Scopoli,  Dall,  8. 
Dosinia  s.  s.,  Dall,  8. 
section    Austrodosinia    Dall,    Dall, 
8. 
section  Dosinia  s.  s.,  Dall,  8. 
section  Dosinidia  Dall,  Dall,  8. 
section  Dosinisca  Dall,  Dall,  8. 
section  Dosinorbis  Dall,  Dall,  8. 
section  Orbiculus  Megerle  Dall,   8. 
(Dosinidia)     acetabulum     Conrad, 
Dall.  8. 
acetabulum    Conrad,    Glenn.    »'>. 
?  alaskana  n.  sp.,  Dall,  10. 
(Dosinidia)  chipolana  n.  sp.,  Dall, 
8. 
(Dosinidia)       concentrica      Born., 
Dall,  8. 
(Dosinidia)  discus  Reeve,  Dall,  8. 
(Dosinidia)    elegans    Conrad,  Dall, 
8. 
(Dosinidia)   liogona  n.  sp..  Dall,  8. 
ponderosa  Gray,  Arnold,  2. 
(Dosinidia)    ponderosa  Gray,  Dall, 
8. 
Dosinidia  Dall,  Dall,  8. 
Dosiniopsis  Conrad,  Dall,  8. 
lenticularis    (Rogers),    Clark    and 
Martin,  2. 
Dosinisca  Dall,  Dall,  8. 
Dosinorbis  Dall,  Dall,  8. 
Douvilliceras    mamillare    Schloth.,    An- 
derson, 3. 
Drillia  Gray,  Arnold,  2. 
calvertensis  n.  sp..  Martin,  5. 
cancellata  Carpenter.  Arnold,  2. 
harmonica  n.  sp.,  Casey.  4. 
hemphilli  Stearns.   Arnold,  2. 
incilifera   (Conrad),  Martin,  5. 
incilifera    var.    angulata    n.    var., 
Martin,  5, 
Paleontology— Continued. 
Genera  and  species  described — Continued. 
Drillia  incilifera  var.  distans  (Conrad), 
Martin,  5. 
incisa  Carpenter,  Arnold,   2. 
inermis  Hinds,  Arnold.  2. 
inermis  var.  penicillata  Carpenter, 
Arnold,   2. 
jobnsoni  n.  sp.,  Arnold,  2. 
limatula  Conrad,  Martin.  5. 
limatula    var.    dissimilis    Conrad, 
Martin,  5. 
limatula   var.   pyramidalis  n.   var., 
Martin.   5. 
merriami  n.  sp.,  Arnold.  2. 
montereyonsis   Stearns,   Arnold,   2. 
pseudeburnea      (Whitfield),      Mar- 
tin, 5. 
pudica  Hinds,  Arnold,  2. 
renaudi  n.  sp.,  Arnold,  2. 
torosa  Carpenter,  Arnold,  2. 
whitfieldi  n.  sp.,  Martin.   5. 
Dromillopus  n.  gen.,  Matthew   (G.   P.), 
30. 
quadrificus    n.    sp.,    Matthew     (G. 
F.),  30. 
Dromocyon  vorax  Marsh.   Wortman,  5, 
6. 
Dromopus   agilis   Marsh,    Matthew    (G. 
F.),    25. 
celer  n.  sp.,  Matthew   (G.  F.),  23. 
velox  n.  sp.,  Matthew   (G.  F.),  30. 
Drupa   rhabdosperrna   Lesquereux,   Per- 
kins, 17. 
Drymotrypa  Ulrich,  Grabau,  1. 
diffusa  (Hall),  Grabau,  1. 
Dryopteris   angustipinnata    (Fontaine) 
Knowlton,  Fontaine.  5. 
fredericksburgensis  (B^ontaine) 
Knowlton,  Fontaine,  5. 
heterophylla     (Fontaine)     Knowl- 
ton, Fontaine,  5. 
parvifolia     (Fontaine)     Knowlton, 
Fontaine,  5. 
Drupa  rhabdosperma  Lx.,  Perkins,  13. 
Dryptosaurus   Marsh,    Osborn,    50. 
incrassatus   (Cope),  Lambe,  6,  8. 
Dynamosaurus   imperiosus   n.   gen.   and 
sp.,  Osborn,  50. 
Dystactospongia    minor    Ulrich,    Hayes 
and  Ulrich,  1. 
Eatonia    goodlandensis    n.    sp..    Kindle 
and  Breger.  1. 
medialis  (Van.),  Weller,  6. 
peculiaris   (Con.),  Weller.  (3. 
singularis  (Van.),  Weller,  6. 
Eccyliomphalus  contiguus  Ulrich,   Wel- 
ler, G. 
frederieus  n.  sp..  Raymond  (P.  E.), 
1. 
subelliptica  n.  sp.,  Weller,  6. 
trentonensis   (Conrad),  Weller,  0. 
Eccyliopterus    spiralis    n.    sp.,    Ruede- 
mann,  2. 
Echinarachnius  Leske,  Arnold,  2. 
Echinocardium      orthonotum      Conrad, 
Clark  (W.  B.),  7. 
