208 
INDEX TO NORTH AMERICAN GEOLOGY, 
[BULL. 271. 
Paleontology— Continued. 
Gt in ra and species described — Continued. 
Tricalycites major n. sp., Holliek, 2. 
papyraceus Newb., Berry, 1. 
Tricarpellitea acuminatus n. sp.. Perkins, 6. 
amygdaloideua n. sp., Perkins, 6. 
angularis n. sp.. Perkins. 6. 
earinatus n. sp., Perkins, 6. 
castanoides n. sp., Perkins, 6. 
contractus n. sp , Perkins, 6. 
daleii n. sp.. Perkins, 6. 
elongatus n. sp.. Perkins, 6. 
Eagoidea n. sp., Perkins, 6. 
Bssilis I Lx. I, Perkins. 6. 
heiniovalis n. sp., Perkins, 6. 
inequalis n. sp., Perkins, 6. 
lignitus n. sp., Perkins, r>. 
major n. sp., Perkins, 6. 
obesus n. sp., Perkins, 6. 
ovalis n. sp., P< rkins, 6. 
pringlei n. sp., Perkins, 6. 
rostratus n. sp., Perkins, 6. 
rugosus n. sp., Perkins, 6. 
seelj i q. sp . Perkins, 6. 
Triel iee 1 1 us giganteus ? > De Kay), Case. l. 
Trigeria lepida Hall, Raymond i P. E.), 1. 2. 
Trigonograptus Nicholson, Ruedemann, I. 
ensiformis Hall sp., Ruedemann, L. 
Trihamus E. Hitchcock, Lull, I. 
elegans E. Hitchcock, Lull, 1. 
magnus C. 11. Hitchcock, Lull, i . 
Trimerella sp., Kindle and Breger, 1. 
Trimeroceras gilberti n. sp., Kindle and Bre- 
'•. 1. 
Trimerocj stis u. gen., Schuchert, i. 
peculiaris n. sp., Schuchert, I. 
Trimerorhachis < lope, Broil i, l. 
insignia ( !ope, Broili, 1. 
insignis Cop< i ase, 1. 
leptorhynchus n. sj 1. 
Trionyx sp., Cas< 
cellulosus Cope, ( !ase, i. 
Tripleurocrinus n. gen., Wood i Elvira), 1. 
levia ii. sp., WOod (Elvira), 1. 
Tristylotus n. .yen.. Parks. 2. 
hexagonus n. sp., Parks. 2. 
rhomboideua n. -p.. Parks, 2. 
Triticites n. gen., Girtj . 5. 
secalicus Saj . < rirty, 5. 
Tritonium centrosum (Conrad i, Martin, 3. 
Trochita alaskana n. -p.. Pall, 1. 
Trochoceraa i Sphj*radoceras i cf . desplainense, 
McChesney .'. Kindle and Breger, 1. 
Trocholites Conrad, Whiteaves, 1. 
ammonius Conrad, Whiteaves, 1. 
canadensis Hyatt. Whiteaves, i. 
planorbiformis Conrad, Whiteaves, l. 
Troostocrinus ? dubius Rowley, RowL y, I. 
Trophon chesapeakanus n. sp., Martin, 3. 
tetrieiis Conrad, Martin. :;. 
tetricus var. la vis n. var., Martin, :;. 
-p.. Martin, 3. 
Tropidoleptus earinatus Conrad, Raymond 
P. E.), 1,2. 
Tropisureula n. yen.. Casey, 1. 
caseyi Aid.. Casey, 1. 
crenula n. sp., Casey, 1. 
s l>-, 
Mar- 
Paleontology — Continued. 
Gt m ra and species described — Continued. 
Tropites Mojsisovics, Smith (J. P.), 2. 
dillerin. sp., Smith (J. P.), 2. 
torquillus Mojsisovics, Smith (J. P.), 2, 
Truncatulina d'Orbigny, Bagg, 3. 
lobatula (Walker and Jacob), Bagg, 3 
variabilis d'Orbigny, Bagg, 3. 
Trypanotoma Coss., Casey, 1. 
longispira n. sp., Casey, 1. 
obtusa n. sp., Casey, 1. 
terebriformis Meyer, Casey, 1. 
Turbinella ? demissa Conrad, Martin, 3. 
I PsiloCOChlis) meeallie, Dall, 3. 
Turbonilla (Tragula) gubernatoria n 
Martin, 3. 
(Pyrgiscus) interrupta (Totten), 
tin, 3. 
(Chemnitzia) uivea Stimpson, Martin, 3. 
(Chemnitzia) uivea Stimpson var., Mar 
tin, 3. 
Turrilites brazoensis F. Roemer, Lasswitz, 1. 
perainplus n. sp., Lasswitz, 1. 
wysogorskii n. sp., Lasswitz, 1. 
Turritella aequistriata Conrad, Martin, 3. 
indenta Conrad, Martin, 3. 
plebeia Say, Martin, 3. 
variabilis Conrad, Martin, 3. 
\ ariabilis var., Martin, 3. 
variabilis var. alticostata Conrad, 
tin, 3. 
variabilis var. cumberlandia Con 
Martin, 3. 
vaiiabilis var. exaltata Conrad, Marti 
Tylocrinus u. yen.. Wood (Elvira), l 
novus n. sp. Wood (Elvira), 1. 
Tj phis acuticosta Conrad, Martin, 3. 
Typopus E. Hitchcock, Lull, 1. 
abnormia E. Hitchcock, Lull, l. 
gracilis E. Hitchcock, Lull, 1. 
I'intaei inussocialisGrinnell, Hovey (E.O.), 
sp., Whiteaves, 3. 
Ulias Cope, Case, l. 
mora t us Cope, Case, 4. 
Ulmus basicordata n. sp., Holliek, 1. 
Uhitrypa, Cumings, 1. 
Urosalpinx cinereus (Say)?, Martin, :$. 
rusticus i Conrad i, Martin, 3. 
Uvigerina d'Orbigny, Bagg, 3. 
canariensis d'Orbigny, Bagg, 3. 
py.yma a d'< »rbiyny, Bagg, 3. 
tenuistriata Reuss, Bagg, 3. 
Varicobela n. yen., Casey, 1. 
Vaccinium alaskanum n. sp., Knowltonj 1. 
Varanosaurus acutirostris n. gen. and s 
Broili, 1. 
Venericardia castrana u. sp., Glenn, 5. 
granulata Say. Clenn, 5. 
planicosta Lamarck, Pall, 1. 
Venus campechiensis var. capax (Conra 
Glenn, 5. 
campechiensis var. cuneata iConra 
Glenn, 5. 
campechiensis var. 
Glenn, 5. 
campechiensis var. 
Glenn, 5. 
mortoni K'onra 
tetriea (Conra 
