684 
INDEX    TO    NORTH    AMERICAN    GEOLOGY 
Paleontology— Continued. 
Genera  and  species  described — Continued. 
Monoceros  Lamarck,  Arnold,  2. 
engonatum  Conrad,  Arnold,  2. 
lapilloides  Conrad,  Arnold,  2. 
Monocladodus  Claypole,  Claypole,  5. 
clarki  Claypole,  Claypole,  5. 
pinnatus  Claypole,  Claypole,  5. 
Monoclonius       Cope,        Stanton       and 
Hatcher,  1. 
belli  n.  sp.,  Lambe,  3. 
canadensis  n.  sp.,  Lambe,  3,  10,  11. 
crassus  Cope,  Stanton  and  Hatcher, 
1. 
dawsoni  n.  sp.,  Lambe,  3. 
dawsoni      Lambe,      Stanton      and 
Hatcher,  1. 
sphenocerus     Cope,     Stanton     and 
Hatcher,  1. 
Monocraterion,  Matthew  (G.  F.),  12. 
Monomorella  noveboracum  n.  sp.,  Clarke 
and  Ruedemann,  1. 
sp.,  Kindle  and  Breger,  1. 
Monophyllites   Mojsisovics,    Hyatt    and 
Smith,  1. 
billingsianus     Gabb,      Hyatt     and 
Smith,  1. 
Monopteria  alata  Beede,  Girty,  3. 
longispina  Cox,  Girty,  3. 
polita  White,  Girty,  3. 
Monotrypa  corrugata  n.  sp.,  Weller,  G. 
globosa  n.  sp.,  Weller,  6. 
magna  Ulr.,  Sardeson,  3. 
sphserica  (Hall),  Weller,  6. 
Monotrypella  Ulrich,  Ulrich  and  Bass- 
ler,  2. 
sequalis  TJlrich,  Ulrich  and  Bassler, 
2. 
quadrata    (Rominger),    Hayes   and 
Ulrich,  1. 
Montacnta  mariana  Dall,  Glenn,  6. 
Monticulipora    D'Orbigny,    Ulrich    and 
Bassler,  2. 
cleavelandi      James,      Ulrich      and 
Bassler,  2. 
epidermata  n.  sp.,  Ulrich  and  Bass- 
ler, 2. 
mammulata  d'Orbigny,  Nickles,  6. 
molesta  Nicholson,  Hayes  and  Ul- 
rich, 1. 
Mopalia  Gray,  Arnold,  2. 
ciliata  Sowerby,  Arnold,  2. 
Moriconia    cycloxon    Deb.    &    Et.,    Ber- 
ry, 8. 
Morio    brevedentata     (Aldrich),    Clark 
and  Martin,  2. 
Morosaurus,  Osborn,  51. 
Morosaurus,  Osborn  and  Granger,  1. 
grandis,  Riggs,  2. 
sp.,  Osborn,  32. 
Mortoniceras  crenulatum  n.  sp.,  Ander- 
son, 3. 
Muensteroceras  Hyatt,  Smith  (J.  P.),  3. 
?  holmesi  Swallow,  Smith   (J.  P.), 
3. 
?  indianense  Miller,  Smith  (J.  P.), 
3. 
Paleontology— Continued. 
Genera  and  species  described — Continued. 
Muensteroceras   ?  morganense  Swallow, 
Smith   (J.  P.),  3. 
osagense  Swallow,  Smith  (J.  P.),  3. 
oweni  Hall,  Smith  (J.  P.),  3. 
parallelum  Hall,  Smith   (J.  P.),  3. 
Mucronella  aspera  n.  sp.,  Ulrich,  2. 
Murchisonia   argylensis   n.    sp.,    Sarde- 
son, 2. 
(Coelacaulis)    bivittata   Hall,   Kin- 
dle and  Breger,  1. 
desiderata  Hall,  Kindle,  1. 
desiderata  Hall,  Parks,  5. 
cfr.  gracilis  Hall,  Sardeson,  1. 
(Turritoma)  laphami  Hall,  Kindle 
and  Breger,   1. 
putilla  n.   sp.,   Sardeson,  2. 
sp.  undet.,  Kindle  and  Breger,  1. 
sp.  indet,  Sardeson,  11. 
Murex  Linne,  Arnold,  2. 
(Pterorhytis)    conradi   Dall,    Mar- 
tin, 5. 
(Pteronotus)    festivus   Hinds,   Ar- 
nold, 2. 
(Pterorhytis)  foliatus  Martyn,  Ar- 
nold, 2. 
(Chicoreus)    leeanus  Dall,  Arnold, 
2. 
(Pterorhytis)   monoceros  Sowerby, 
Arnold,  2. 
(Pterorhytis)  nuttalli  Conrad,  Ar- 
nold, 2. 
(Chicorus?)  trialatus  Sowerby,  Ar- 
nold, 2. 
Muricidea  shilohensis    (Hilprin),   Mar- 
tin, 5. 
Musculium   Link,   Dall,   8. 
Mustela?  minor  n.  sp.,  Douglass,  8. 
ogygia  n.  sp.,  Matthew  (W.  D.),  2. 
Mustelidae,  Matthew   (W.  D.),  10. 
Mya  crassa  Grewingk,  Dall,  10. 
producta  Conrad,  Glenn,  0. 
Myalina?  abstemia  n.  sp.,  Sardeson,  11. 
ampla  Meek  and  Hayden,  Beede,  1. 
arkansasana   Weller?,    Girty,   3. 
congeneris  Walcott,  Beede,  1. 
copei  n.  sp.,  Whitfield,  2. 
cuneiformis  Gurley,   Girty,  3. 
?  exasperata  Beede,  Beede,  1. 
kansasensis  Shumard,  Beede,   1. 
keokuk  Worthen,  Girty,  3. 
perattenuta     Meek     and     Hayden, 
Beede,  1. 
perattenuata   Meek   and   Hayden?, 
Girty,  3. 
perniformis  Cox?,  Girty,  3. 
subquadrata  Shumard,  Beede,  1. 
subquadrata    Shumard?,    Girty,    3. 
swallovi  McChesney,  Beede,  1. 
wyomingensis  Lea,  Girty,  3. 
Myelophycus  n.  gen.,  Ulrich,  4. 
curvatum  n.  sp.,  Ulrich,  4. 
Mylacris  anceps  n.  sp.,  Sellards,  8. 
(Dipeltis)   diplodiscus,  Sellards,  5. 
diplodiscus,  Sellards,  8. 
elongata,  Sellards,  8. 
