weeks.] PALEONTOLOGY, PETROLOGY, AND MINERALOGY, 1896. 143 
Paleontology — Continued. 
Genera and species described — Continued. 
Solarium greggi n. sp., Harris, No. 280. 
huppertzi var. Har., Harris, No. 280. 
periscelidum, Harris, No. 279. 
gylvajrupis n. sp., Harris, No. 280. 
sp., Clark, No. 118. 
sp., Harris, No. 279. 
Solecurtus (?) dubius n. sp., Stanton, No. 648. 
Solemya 
occidentalis n. sp., Stanton, No. 648. 
petricoloides (Lea), Clark, No. 118. 
Sphrerobolus n. gen. prov., Matthew, No. 487. 
spissus, Matthew, No. 487. 
Sphenotus sinuatus n. sp., Miller and Gurley, 
No. 511. 
Spirialis elongatoidea Aid., Aldrich, No. 11. 
Spiroplecta clarki n. sp., Bagg, Nos. 19, 20. 
Spondylua fragilis n. sp., Stanton, No. 648. 
Steganocrinus spergenensis u. sp., Miller and 
Gurley, No. 508. 
Stegomus arcuatus n. gen. et sp., Marsh, No. 
476. 
Stegosaurus, Marsh, Nos. 480, 481. 
Stenaster Billings, James, No. 360. 
grandis Meek, James, No. 360. 
harrisi (S. A. Miller), James, No. 360. 
Stenotheca Salter, Matthew, No. 490. 
concentrica, Matthew, No. 490. 
var. radiata, Matthew, No. 490. 
hicksiana, Matthew, No. 490. 
nasuta, Matthew, No. 490. 
triangularis, Matthew, No. 490. 
Stephanograptus 
crassicaulis n. sp., Gurley, No. 265. 
exilis Lapworth n. sp., Gurley, No. 265. 
Sterrholophus, Marsh, No. 480. 
Straparollus missouriensis n. sp., Miller and 
Gurley, No. 511. 
Strepsidura 
flcus Gabb, Aldrich, No. 11. 
heilprini n. sp., Aldrich, No. 11. 
heilprini, Harris, No. 279. 
( ? ) mediavia n. sp., Harris, No. 279. 
pachecoensis n. sp., Stanton, No. 647. 
Streptelasma robustum n. sp., Whiteaves, No. 
750. 
Stricklandinia castellana White, Weller and 
Davison, No. 735. 
Strigilla galvestonensis n. sp., Harris, No. 278. 
Strobilepsis spinigera, Clarke, No. 125. 
Strombina gibberula var. galvestonensis n. 
var. Harris, No. 278. 
Strotocrinus ornatus n. sp., Miller and Gurley, 
No. 508. 
Syllomus crispatus n. gen. et sp., Cope, No. 
135. 
Synbathocrinus illinoisensis n. sp., Miller and 
Gurley, 508. 
Systemodon Cope, Wortman, No. 781. 
prima- vus n. sp., AVortman, No. 781. 
Tseniaster Billings, James, No. 360. 
elegans S. A. Miller, James, No. 360. 
Taxoerinus 
splendens n. sp., Miller and Gurley, No. 
508. 
ungula n. sp., Miller and Gurley, No. 508. 
Paleontology— Continued. 
Genera and species described — Continued. 
Tellina 
requiatriata, Say, No. 599. 
eburneopsis Con., Harris, No. 280. 
hornii Gabb?, Stanton, No. 647. 
lignitica n. sp., Harris, No. 280. 
subaequalis n. sp., Cragin, No, 142. 
subtriangularis n. sp., Aldrich, No. 11. 
virginiana n. sp., Clark, Nos. 118, 122. 
williamsi n. sp., Clark, Nos. 118, 122. 
Tellina, Harris, No. 279. 
Tellinomya 
alta, Whitfield, No. 752. 
infiata, Whitfield, No. 752. 
ovata, Whitfield, No. 752. 
ventricosa, Whitfield, No. 752. 
Temnocyon ferox, Eyerman, No. 204. 
Terebra Bruguiere, Dall, No. 158. 
gabbi, Dall, No. 158. 
haitensis n. sp., Dall, No. 158. 
galvestonensis n. sp., Harris, No. 278. 
langdoni, Harris, No. 278. 
inornata n. sp., Dall, No. 158. 
sincera n. sp., Dall, No. 158. 
(Acus) 
amitra n. sp., Dall, No. 156. 
curvilineata n. sp., Dall, No. 158. 
curvilirata Conrad, Dall, No. 158. 
bipartita Sowerby, Dall, No. 158. 
chipolana n. sp., Dall, No. 158. 
dislocata var. indent a Conrad, Dall, 
No. 158. 
langdoni n. sp., Dall, No. 158. 
neglecta Emmons, Dall, No. 158. 
(Hastula) houstonia Harris, n. sp., Dall, 
No. 158. 
Terebratula 
californica n. sp., Stanton, No. 648. 
plicata, Say, No. 599. 
cf. zieteni p. do Loriol, Aguilera, No. 10. 
sp., Aguilera, No. 10. 
sp., Stanton, No. 648. 
Terebratulina tejonensis n. sp., Stanton, No. 
647. 
Terebrifugus amoenus Con., Aldrich, No. 11. 
Toredo virginiana n. sp., Clark, Nos. 118, 122. 
Tetragrapsusacanthonotus n. sp., Gurley, No. 
265. 
Thamnograptus barrandii Hall, Gurley, No. 
265. 
Thecachampsamarylandican. sp., Clark, Nos. 
118,122. 
Thinnfeldia lesquereuxiana Heer, Newberry, 
No. 519. 
Thuya cretacea (Heer) Newb., Newberry, No. 
519. 
Thuyites meriani Heer, Newberry, No. 519. 
Thysauocrinus milliganas n. sp., Miller and 
Gurley, No. 508. 
Tilla'phyllum dubium n. sp., Newberry, No. 
519. 
Titanichthys brevis n. sp., Claypole, No. 127. 
Titanotherium 
acer (Cope), Osborn, No. 527. 
altirostris (Cope), Osborn, No. 527. 
