702 
INDEX    TO    NORTH    AMERICAN    GEOLOGY 
Paleontology— Continued. 
Genera  and  species  described — Continued. 
Pleurotoma     (Drillia)     caseyi    n.     sp., 
Aldrich,  2. 
(Hemipleurotoma)  choptankensis 
n.  sp.,  Martin,  5. 
(Hemipleurotoma)  childreni  Lea, 
Clark  and  Martin,  2. 
collaris  n.   sp.,   Casey.   4. 
(Hemipleurotoma)  communis  Con- 
rad, Martin,  5. 
(Hemipleurotoma)  communis  var. 
protocommunis  n.  var.,  Martin, 
5. 
(Dichotoma)  cooperi  n.  sp.,  Ar- 
nold, 2. 
(Borsonia)  dalli  n.  sp.,  Arnold,  2. 
ducateli  n.  sp.,  Clark  and  Martin, 
2. 
(Clathurella)  duinblei  n.  sp.,  An- 
derson. 7. 
evanescens  n.  sp.,  Casey,  4. 
harrisi  Clark,  Clark  and  Martin,  2. 
hilgardi  n.  sp.,  Casey,  4. 
(Borsonia)  hooveri  n.  sp.,  Arnold, 
2. 
intacta  n.  sp.,  Casey,  4. 
oblivia  n.  sp.,  Casey,  4. 
(Leucosyrinx)  pedroana  n.  sp.,  Ar- 
nold, 2. 
perversa  Gabb,  Arnold,  2. 
piscatavensis  n.  sp.,  Clark  and 
Martin,  2. 
plutonica  n.  sp.,  Casey,  4. 
potomacensis  n.  sp.,  Clark  and 
Martin,  2. 
servata  Conrad,  Casey,  4. 
(Spirotropsis)  smitbi  n.  sp.,  Ar- 
nold, 2. 
(Dolicbotoma)  tryoniana,  Gabb, 
Arnold,   2. 
tysoni  n.  sp.,  Clark  and  Martin,  2. 
vicksburgensis  n.  sp.,  Casey,  4. 
Pleurotomaria  De  France,  Grabau,  1. 
adjutor  Hall,  Parks,  5. 
aiens  n,  sp.,  Sardeson,  1. 
?  axion  Hall,  Kindle  and  Breger, 
1. 
capillaria  Conrad  cognata  mut. 
nov.,  Clarke,  19. 
capillaria  Conrad,  mut.  pygmaea 
nov.,  Loomis,  4. 
?  cf.  carbonaria  Norwood  and 
Pratten,   Girty,  3. 
ciliata  n.  sp.,  Clarke,  10. 
circumtrunca  n.  sp.,  Cragin,  2. 
clivosa  n.  sp.,  Sardeson,  9. 
delicatula  var.  camera  n.  var., 
Parks,  5. 
eloroidea  n.  sp.,  Kindle  and  Bre- 
ger,  1. 
cf.  eloroidea,  Kindle  and  Breger,  1. 
genundewa  n.  sp.,  Clarke,  19. 
boyi  Hall,  Kindle  and  Breger,  1. 
bunterensis  Cleland,   Cleland,   3. 
?  idia  Hall,  Kindle  and  Breger.  1. 
itylus  n.  sp.,  Clarke,  19. 
Paleontology— Continued. 
Genera  and  species  described — Continued. 
Pleurotomaria  itys  Hall,   mut.  pygmaea 
nov.,  Loomis,  4. 
laphami     Wbitfield,     Kindle     and 
Breger,    1. 
littorea  Hall,  Grabau,  1. 
lucina  Hall,  Kindle,  1. 
lucina  var.  perfasciata  Hall,  Kin- 
dle, 1. 
pauper  Hall,  Kindle  and  Breger,  1. 
pervetusta    (Conrad),   Grabau,   1. 
procteri   Nettleroth,   Kindle,    1. 
?  quinquesulcata  Win.,  Weller,  2. 
stantoni  n.  sp.,  Shattuck,  8. 
sulcomarginata  Conrad,   Kindle,  1. 
sweeti  Whitfield,   Sardeson,  2. 
?  sp.,  Girty,  3. 
sp.,  Kindle,  1. 
?  sp.  undet.,  Weller,  2. 
sp.  undet.,   Kindle  and   Breger,   1. 
(or   Euompbalopterus)    sp.    indet., 
Whiteaves,   17. 
Plicatula  densata  Conrad,  Glenn.   6. 
sportella  n.  sp.,  Cragin,  2. 
Plintbiotheca  angularis  Lx.   sp.,  White 
(D.),  10. 
Pliohippus  Marsh,  Gidley,  5. 
simplicidens  Cope,   Gidley,    1. 
Pliomera  Angelin,  Raymond  (P.  E.),6. 
Pliomerops  n.  gen,,  Raymond    (P.  E.), 
6. 
canadensis,  Raymond   (P.  E.),  6. 
Poacites  sp.,  Hollick,  11. 
Poatrephes?,  Douglass,  8. 
paludicola  n.  gen.   and   sp.,   Doug- 
lass, 8. 
Pododesmus  Philippi,  Arnold,  2. 
(Monia)    macroschisma   Deshayes, 
Arnold,  2. 
Podozamites      angustifolius      (Eichw.) 
Schimp.,  Hollick,  11. 
distantinervis  Fontaine,   Fontaine, 
o. 
grandifolius   Fontaine?,    Fontaine, 
2. 
lanceolatus.  (Lindley  and  Hutton) 
Friedrich    Braun    non    Emmons, 
Fontaine,  1. 
lanceolatus     latifolius     (Friedrich 
Braun)   Heer,  Fontaine,  1. 
lanceolatus   minor    (Schenk)  Heer, 
Fontaine,  1,  2. 
marginatus  Heer,  Berry,  5. 
pachynervis  n.  sp.,  Fontaine,  1. 
pachyphyllus  n.  sp.,  Fontaine,  1. 
pedicellatus  Fontaine,  Fontaine,  5. 
pulchellus  Heer,  Fontaine,  1. 
sp.  ?,  Hollick,  4. 
Poebrotherium,  Matthew   (W.  D.),  15. 
eximium,  Matthew   (W.  D. ),  15. 
labiatum,  Matthew  (W.  D.),  15. 
wilsoni,  Matthew   (W.  D.),  15. 
Poecilodus  McCoy,  Eastman,  10. 
rugosus    Newberry    and    Worthen, 
Eastman,  10. 
