672 
INDEX    TO    NORTH    AMERICAN    GEOLOGY 
Paleon?  elegy— Continued. 
G  nera  and  species  described— Continued. 
Indiana,  Matthew   (G.  F.),  20. 
lippa  n.  sp.,  Matthew   (G.  F.),  13, 
20. 
ovalis  n.  sp.,  Matthew   (G.  F.),  13, 
20. 
ovalis    mut.    prima.    Matthew     (G. 
F.).  20. 
Indrodon  malaris  Cope,  Oshorn,  11. 
Inoceramus  adunca  n.  sp.,  Anderson.  .'!. 
balchii   M.   and   H.,   Johnson    (D. 
W.),  5. 
cripsii  var.  barabini  Morton,  John- 
son (D.  W.),  5. 
digitatus        (Sowerby)        Schmidt, 
Whiteaves.  12. 
dimidius  White,  Johnson    (D.  W.), 
5. 
fragilis    II.    and    M.,    Johnson    (D. 
W.),  5. 
irregularis     n.     sp.,     Johnson     (D. 
W.),  5. 
klamathensis  n.  sp.,  Anderson,  3. 
labiatus   Schlotheim,   Johnson    (D. 
W.),  5. 
simpsoni  Meek,  Johnson    (D.   W. ), 
5. 
vanuxemi  M.  and  H.,  Johnson   (D. 
W. ).  5. 
n.  sp.  ?,  Johnson  (D.  W.),  5. 
sp..  Shattuck,  8. 
Inseetivora  Matthew  (W.  D.),  19. 
Inoeeramya  n.  gen.,  Ulrich,  4. 
coneentrica  n.  sp.,  Ulrich.   1. 
Inyoites  n.  gen.,  Hyatt  and  Smith.  1. 
oweni  n.  sp.,  Hyatt  and  Smith,  1. 
Iphidea    pannula    White    sp.,    Matthew 
(G.  F.),  19. 
Iphidella  n.  gen.,  Walcott,  12. 
labradorica  orientalis  n.  var.,  Wal- 
cott, 12. 
labradorica  utahensis  n.  var.,  Wal- 
cott, 12. 
major  n.  sp.,  Walcott.  12. 
nisus  n.  sp.,  Walcott,  12. 
pannula    maladensis   n.   var.,    Wal- 
cott, 12. 
pannula    ophirensis    n.    var..    Wal- 
cott, 12. 
sp.  unci..  Walcott,  12. 
Isapis  H.  and  A.  Adams,  Arnold,  2. 
Ischnochiton  Gray,  Arnold,  2. 
regularis  Carpenter.  Arnold,  2. 
Ischyrocyon    n.    gen.,    Matthew,    Mat- 
thew and  Gidley,  1. 
hyaenodus    n.    sp.,    Matthew,    Mat- 
thew and  Gidley,  1. 
lsehyromyidae,  Matthew   (W.  D.),  19. 
Ischyromys    veterior    n.    sp.,    Matthew 
(W.  D.),  9. 
Isocampe  E.  Hitchcock,  Lull,  2. 
strata  E.  Hitchcock,  Lull,  2. 
Isocardia  cliffwoodensis  n.  sp..  Weller, 
10. 
fraterna  Say,  Glenn,  6. 
ignolea  n.  sp.,  Glenn,  6. 
Paleontology— Continued. 
Genera  and  species  described — Continued 
Isocardia  markoei  Conrad,  Glenn,  6. 
mazlea  n.  sp.,  Glenn,  6. 
medialis   (Conrad),  Shattuck,  8. 
Isochilina  Jones,  Grabau,  1. 
armata     var.      pygmaea     n.      var. 
Ruedemann,  2. 
cylindrica  (Hall),  Grabau,  1. 
gregaria  Whitfield,  var.   (?),  Jones 
(T.  R.),  2. 
gregaria    (Whitfield),   var.   ulrich 
ana,  nov.,  Jones  (T.  R.),  2. 
sp.   ?,  Jones  (T.  R.),  2. 
Isodomo  (Deshayes)  Cossmann,  Dall,  8 
Isomena  humilus  Meek?,  Kindle,  1. 
Isopora  Studer,  1878,  Vaughan,  2. 
muricata    (Linnaeus)    forma   muri 
cata    s.    s.     (==  cervicornis    La 
marck),  Vaughan,  2. 
Isotelus    angusticaudum    n.    sp.,    Ray 
mond  (P.  E.),  5. 
?  bearsi  n.  sp.,  Raymond    (P.  E.) 
5. 
canalis  Whitf.,  Weller,  0. 
florencevillensis  n.  n.   (Isotelus  su 
sae   Clarke,   not   Whitfield),   Cal 
vin,  10. 
gigas  De  Kay.  Weller,  6. 
harrisi  n.  sp.,  Raymond  (P.  E.),  5 
maximus  Locke,  Ruedemann,  2. 
obtusum  Hall,  Raymond  (P.  E.),  5 
susae  Whitfield,  Calvin,  10. 
Isurus  mantelli   (Geinitz),  Williston,  1 
I  vara  D.  and  B.  (MSS.),  Arnold,  2. 
Ixacanthus  Cope,  Case,  9. 
atropius  Cope,  Case,  9. 
coelospondylus  Cope,  Case,  9. 
conradi  (Leidy),  Case,  9. 
spinosus  Cope,  Case,  9. 
stenus  Cope,  Case,  9. 
Ixartia  Leach,  Dall,  8. 
Jaekelocystis  n.  gen.,  Schuchert   6,  11. 
avellana  n.  sp.,  Schuchert,  11. 
hartleyi  n.  sp.,   Schuchert.  6,   11. 
papillatus  n.  sp.,  Schuchert,  11. 
Jagonia  Recluz,  Dall,  8. 
Jamesella  n.  subg.  of  Nisusia,  Walcott, 
12. 
Janassa  maxima  n.  sp.,  Eastman,  10. 
unguila  n.  sp.,  Eastman,  10. 
Joannites       Mojsisovics,       Hyatt       and 
Smith.  1. 
nevadanus  n.  sp.,  Hyatt  and  Smith. 
1. 
Juglans?  bendirei  n.  sp.,  Knowlton.  14. 
brandonianus   n.    sp.,    Perkins,    13, 
17. 
crassifolia  n.  sp.,  Knowlton,  14. 
cryptata  n.  sp.,  Knowlton,  14. 
oregoniana  Lesq..  Knowlton,  14. 
Juniperus  hvpnoides  Heer(?).   Hollick, 
4 
Juvavites      Mojsisovics,       Hyatt      and 
Smith,  1. 
