WEEKS.] 
PETROLOGY, AND MINERALOGY FOR 1892-1900. 
269 
Paleontology— Continued. 
Gem rn (i ml species described — Continued. 
Proutella, Simpson, 4983. 
Primus (?) acutifolia n. sp., Newberry, 4080. 
(amygdalus)? antecedens n. sp., Les- 
quereux, 3470. 
variabilis Newberry, Knowlton, 3232. 
variabilis Ncwli., Newberry, 4083. 
I'ryenomoeus decipiens n. sp., Ulrich, 5535. 
subcuneatus n. sp., Ulrich, 5535. 
I'sammechinus cingulatus Clark, Clark, 892. 
Psammoba (Lam.) Bowdich, Ball, 1281. 
ozarkana n. sp., Harris, 2313. 
(Gobrams) wagneri Dall, Dall, 1281. 
Psammobiidse, Dall, 1276. 
Psammosolen Risso, Dall, 1281. 
cumingianus I ) unker, Dall, 1281. 
vicksburgensis Aldrich, Dall, 1281. 
(Azor) Leach, Dall, 1281. 
Psephenus lutulentus n. sp.. Scudder, 4900. 
Psephodus (Helodus) politus n. sp., New- 
berry, 4082. 
Pseudamussium claibornense, Harris, 2313. 
Pseudocopteris Lx., White, 6050. 
obtusiloba (Brongn.) Lx., White, 6050. 
squamosa Lx. sp.. White (1050. 
sp., White, 60.50. 
Pseudodanaeopsis obliqua (Emmons) Fon- 
taine, Ward, 5857. 
plana (Emmons) Fontaine, Ward, 5857. 
Pseudodiadema emersoni Clark. Clark, 892. 
■ lint return (Morton), Clark, 892. 
texanum (Roemer), Clark, 892. 
tfexanum Roemer, Cragin, 1115. 
Pseudoliva ostrarupis n. sj»., Harris, 2307. 
OStrarupis, Harris, 2310. 
var. pauper, Harris, 2310. 
scalina Heilp., Harris, 2310, 2316. 
tuberculifera Con., Harris, 2316. 
unicarinata. Harris, 2310. 
vetusta, Harris, 2310, 2315, 2316. 
vetusta var., Harris, 2311. 
vetusta?, Whitfield, 0097. 
sp., Harris, 2310. 
Pseudomonotis curta Hall, Logan, 
(?) cf. hawni Meek. Beede, 393. 
var. equistriata ? sp.? nov., Beede, 393. 
robusta sp. ? var. ? nov., Beetle. 393. 
tenuistriata sp. ? var. ? nov.. Beede, 393. 
Pseudopecopteris macilenta (L. and H.) Lx., 
White. 6049. 
squamosa, Lx., White, 6049. 
Pseudoperna n. gen., Logan, 3557. 
attenuata n. sp., Logan, 3557. 
orbicularis u. sp., Logan, 3557. 
rugosa n. sp., Logan, 3557. 
tort a n. sp., Logan, 3557. 
wilsoni n. sp., Logan, 3557. 
Pseudophorus tectiformis n. sp., Whiteaves, 
6074. 
Pseudosophserexochus trentonensis n. sp., 
Clarke, 952. 
Psiloconcha n. gen., Ulrich, 5539. 
elliptica n. sp., Ulrich, 5535. 
grandis n. sp., Ulrich, 5535. 
inorrata n. sp., Ulrich, 5535. 
minima n. sp., Ulrich, 5535. 
Paleontology— Continued. 
Genera and species described — Continued. 
Psiloconcha minnesotensisn. sp., Ulrich, 5539. 
sinuata Ulrich, 5535. 
subovalis Ulrich, 5535. 
subrecta n. sp., Ulrich, 5535. 
tenuistriata n. sp., Ulrich, 5535. 
Psilonychia perangulata n. gen. et sp., Ulrich, 
5535. 
Psilophyton grandis n. sp., Penhallow, 4333. 
Psittacotherium Cope, Wortman, 6492. 
multifragum Cope, Osborn and Earle, 1192. 
multifragum Cope, Wortman, 6490. 
Ptenoeeras n. gen., Hyatt, 2819. 
Pteranodon, Case, 768. 
Pteranodon Marsh, 3702. 
Pteranodon Williston, 6220. 
Pteraspidae, Case, 766. 
Pterbostichus Bonelli, Scudder, 4896. 
abrogatus, Scudder, 4896. 
destitutus, Scudder, 4896. 
destructus, Scudder, 4896. 
dormitans, Scudder, 4896. 
tractus, Scudder, 1896. 
gelidus, Scudder. 1896. 
Pteria colymbus Bolten, Dall, 1272. 
hinmdo Bolten, Dall, 1272. 
var. vitrea Reeve, Dall, 1272. 
multangula II. C. Lea, Dall, 1272. 
.' salinensis White, Cragin, 1115. 
scopoli, Dall, 1272. 
(argentea var.?) chipolana Dall, Dall 
1272. . 
Pterichidae, Case. 766. 
Pterinea Goldfus, Grabau, 2086. 
a\ [culofdea, Whitfield, 6099. 
brisa, Foerste, 1835. 
cardinata, banc-. 3400. 
cincinnatiensis n. sp.. Miller ami Faber, 
3996. 
flabella (Conrad |, (iral.au. 2086. 
tlahella, Whitfield, G099. 
lobata u. sp., Whiteaves, 6074. 
regatula n. sp., Miller and Faber, 3996. 
similis. Whitfield, 6099. 
Sp.?, Clarke. '.171. 
Pterinopecten Hall. Grabau, 2086. 
conspectus Hall, Grabau, 2086. 
hermes Hall, (iral.au. 2086. 
cf. Isetus II., Weller, 6006. 
proteus n. sp. Clarke, 971. 
pumilus n. sp., Clarke, 971. 
sedaliensis n. sp., Miller, 3992. 
signatus n. sp., Clarke, 971. 
subequilateralis Hall, Clarke, 917. 
undodus Hall, Grabau, 2086. 
Pteris dakotensis n. sp., Lesquereux, 3470. 
penmeformis Heer, Newberry, 4083. 
P-rudopennaeformis, Holliek, 2708. 
russellii Newb., Newberry, 4083. 
Pterodactylus, Case, 768. 
Pteronites hopkinsi n. sp., Weller, 5986. 
Isevis n. sp., Weller, 5986. 
whitei (Win.), Weller, 6006. 
Pterophyll urn daleanum Ward, n. nom.Ward, 
5857. 
insequale Fontaine, Ward, 5857. 
