FOR    THE    YEARS    1901-1905,  INCLUSIVE. 
679 
Paleontology— Continued. 
Genera  and  species  described — Continued. 
Macrocephalites  ishmae   Keyserling  sp., 
Madsen,  1. 
sp.    cf.    macrocephalus    Schlotheim 
sp.,  Madsen,  1. 
pompeekji  n.  sp.,  Madsen,  1. 
Macrocheilina      carinatus      Nettleroth, 
Kindle,  1. 
Macrochilina     hamiltoniae     Hall,     mut. 
pygmaea  Clarke,  Loomis,  4. 
hebe     Hall.,     mut.     pygmaea     nov., 
Loomis,  4. 
hebe  Hall,  Kindle,  1. 
onondagaensis  n.  sp..  Clarke,  2. 
onondagaensis   Clarke.    Wilson    (J. 
D.),  1. 
pygmaea  n.  sp.,  Clarke,  19. 
seneea  n.  sp.,  Clarke,  10. 
sp.  indet.,  Clarke  and  Ruedemann, 
1. 
sp.,  Kindle,  1. 
Macrodon  cf.  cochlearis  Winchell,   Sar- 
deson,  11. 
Macrodon  obsoletus  Meek.  Beede,  1. 
parvus  W.  &  W.,  Weller,  2. 
sangamonensis  Worthen?,  Beede,  1. 
Macron  II.  and  A.  Adams,  Arnold,  2. 
kellettii  A.  Adams,  Arnold,  2. 
lividus  A.  Adams,  Arnold,  2. 
Macronotella    fragaria    n.    sp.,    Ruede- 
mann, 2. 
ulrichi  n.  sp.,  Ruedemann,  2. 
Macrotaeniopteris   calit'ornica   Fontaine, 
Fontaine  1. 
Mactra  Linne,  Arnold,  2. 
californica  Conrad.  Arnold,  2. 
(Spisula)  catilliformis  Conrad,  Ar- 
nold, 2. 
clathrodon  Lea,  Glenn,  fi. 
exoleta  Gray,  Arnold,  2. 
(Spisula)  falcata  Gould,  Arnold,  2. 
gabbiana  n.  sp.,  Anderson,  3. 
hemphilli  Dall,  Arnold,  2. 
luteola  Loven  (?),  Sears,  1. 
Magnolia  alternans  Heer,  Hollick,  4. 
capellinii  Heer,  Berry,  7. 
capellini  Heer,  Hollick,  11. 
obtusata  Heer,  Berry,  5. 
palaeopetala  n.  sp.,  Hollick,  6. 
speciosa  Heer,  Berry,  6,  7. 
tenuifolia  Lesq.,  Berry,  7. 
tenuifolia  Lesq.   (?),  Hollick,  11. 
tenuifolia  Lesq.,  Berry,  5. 
woodbridgensis  Hollick,  Berry,  5. 
Majanthemopbyllum     grandifolium     n. 
sp.,  Penhallow,  4. 
Malocystites  emmonsi  n.  sp.,  Hudson,  1. 
Mancalla  californiensis  n.  sp.,  Lucas,  5. 
Mangilia  Risso,  s.  s.,  Arnold,  2. 
Mangilia  (Leach)  Risso,  Arnold,  2. 
angulata  Carpenter,  Arnold,  2. 
(Pleurotomella)  bellistriata,  Clark 
and  Martin,  2. 
(Cythara)   branneri  n.  sp.,  Arnold, 
2. 
Paleontology — Continued. 
Genera  and  species  described — Continued. 
Mangilia       (Clathurella)        conradiana 
Gabb,  Arnold,  2. 
Cornell iana  n.  sp.,  Martin,  5. 
hooveri  n.  sp.,  Arnold,  2. 
interfossa    var.    pedroana    n.    var., 
Arnold,  2. 
interlirata  Stearns,  Arnold,  2. 
(Glyphostoma)   obtusa  n.  sp.,  Mar- 
tin, 5. 
oldroydi  n.  sp.,  Arnold,  2. 
painei  n.  sp.,  Arnold,  2. 
parva  (Conrad),  Martin,  5. 
parvoidea  n.  sp.,  Martin,  5. 
patuxentia  n.  sp.,  Martin,  5. 
sculpturata  Dall,  Arnold,  2. 
striosa  C.  B.  Adams,  Arnold,  2. 
(Taranis)  strongi  n.  sp.,  Arnold,  2. 
Mantelliceras  n.  gen.,  Hyatt,  1. 
Mantellum  Adams,  Arnold,  2. 
Maragnicrinujs  n.  gen.,  Whitfield,  11. 
portlandicus  n.  sp.,  Whitfield,  11. 
Marchantites  trectus   (Bean)    Seward?, 
Fontaine,  1. 
Marcia  H.  and  A.  Adams,  Dall,  8. 
section  Hemitapes  Romer,  Dall,  S. 
section  Mercimonia  Dall,  Dall,  8. 
section  Samarangia  Dall,  Dall,  8. 
section        Textivenus        Cossmann, 
Dall,  8. 
section  Venerella  Cossman,  Dall,  8. 
Margarita  Leach,  Arnold,  2. 
optabilis  Carpenter,  var.  knechti  n. 
var.,  Arnold,  2. 
optabilis  Carpenter  var.,  nodosa  n. 
var.,  Arnold,  2. 
parcipicta    Carpenter,    var.    pedro- 
ana n.  var.,  Arnold,  2. 
papilla  Gould,  Arnold,  2. 
Margaritana  nebrascensis  Meek,  White 
(C.  A.),  1. 
Margaritaria  abrupta    (Conrad)    Glenn, 
6. 
abrupta  Conrad,  Dall,  8. 
Margarites  peninsularis  n.  sp.,  Dall,  10. 
Marginella  Lamarck,  Arnold,  2. 
calvertensis  n.  sp.,  Martin,  5. 
denticulata  Conrad,  Martin,  5. 
jewettii  Carpenter,  Arnold,  2. 
minuta  Pfeiffer,  Martin,  5. 
(Volvarina)     varia     Sowerby,     Ar- 
nold, 2. 
Marginifera   haydenensis   n.   sp.,   Girty, 
3. 
ingrata  n.  sp.,  Girty,  3. 
lasallensis  Worthen?,  Girty,  3. 
muricata     Norwood     and    Pratten, 
Girty,  3. 
wabashensis  Norwood  and  Pratten 
var.,  Girty,  3. 
Marginulina  costata  (Batsch.),  Bagg,  1. 
Mariacrinus  Hall,  Talbot,  2. 
beecheri  n.  sp.,  Talbot,  2. 
Mariopteris  cordato-ovato  obtusiloba  n. 
var.,  White  (D.),  10. 
Marsilea  andersoni  n.  sp.,  Hollick,  11. 
