WEEKS 
PETKOLOGY, AND MINERALOGY FOR 1892-1900. 
205 
Paleontology— Continued. 
G( nera and species dk scribed — Continued. 
Dcntalium caduloide n. sp., Dall, 1259. 
califomicum n. sp., Stanton, 5199. 
caloosaense n. sp., Dall, 1259. 
grandaevum Win., Wcller, 6006. 
martini, Whitfield, 6098. 
mediaviense, Harris, 2310. 
microstria Heilprin, Aldrich, 73. 
microstria Beilp., Harris, 2316. 
multannulatum n. sp., Aldrich, 73. 
multannulatum Aid., Harris, 2316. 
prisma n. sp., Dall, 1259. 
ripleyanum, Whitfield, 6097. 
subareuatum, Whitfield, 6097. 
thalloides Con., Harris, 2316. 
tetragonum, Harris, 2309. 
I Falcula) falcatum, Whitfield, 6097. 
Derbya Waagen, Hall and Clarke, 2260. 
affinis n. sp., Hall and Clarke, 2260. 
bennetti n.sp., Hall and Clarke, 2261, 2268. 
biloba d. sp., Hall and Clarke, 2260, 2268. 
broadheadi n. sp., Hall and Clarke, 2260, 
2268. 
costatula n. sp., Hall and Clarke, 22011, 
2268. 
crassa, Lane, 3100. 
cymbula n.sp., Hall and Clarke, 2260, 2268. 
keokuk Hall (?), Girty, 2038 
ruginosa n. sp., Hall and Clarke, 2260, 
2268. 
Desmatochelys lowii en. gen. el sp., Williston, 
6225. 
low ii, Williston, 6245. 
Desmoceras affine n. sp., Whiteaves, 6073. 
var. glabrum, Whiteaves, 6073. 
athabascense n. sp., w bitaves, 6073. 
breweri, Whiteaves, 6095a. 
califomicum a. sp., Stanton, 5199. 
dawsoni n. sp., Whiteaves, 60 
haydenii, Whiteaves, 609 ia. 
latidorsatum Michelin, Win leaves, 6095a. 
maudense, Whiteaves, 6095a. 
perezianum, Whitea^ es, 609 >a 
(Puzozia) planulatum? Sowerby, 
Whiteaves, 6095a. 
Desmograptus devonicus n. sp., Gurley, 2217. 
macrodictyum n. sp., Gurley, 2217. ^ 
Desmophyllum willcoxi n. sp., Gane, i'J34. 
Deuterosaurus, Case, 768. 
Devallia '.' montana n. sp.. Know Iton, 32 
Dewalqueauakotensisn. sp.. Lesquereux,3470. 
groenlandica Heer (?), Hollick, 2696. 
gronlandica Heer (?), Newberry, 1080. 
primordalis n. sp., Lesquereux, 3 172. 
tril'oliata Q. sp., Newberry, 4080. 
Diadact< 3, Case, 768. 
Diademodon, Case, 768. 
Diamesopora, Simpson, 4983. 
Diamesopora Hall, Ulrich, 5537. 
trentonensis n. sp., Ulrich, 5537. 
Dianulites, Simpson, 1983. 
Diaphorostoma ?agassizi, q. sp., Clarke, 976. 
darwini, n. sp., Clarke, 976. 
desmatum n. sp., Clarke, 971. 
furmanianum, Hartt and Rathbun (sp.), 
Clarke, 976. 
Paleontology— Continued. 
Genera and species described^-Obntiimed, 
Diaphorostoma ventricosum Conrad, Clarke, 
971. 
Diastoporina, Simpson, 4983. 
Diastoporina Ulrich, Ulrich, 5537. 
flabellata Ulrich, Ulrich, 5537. 
Diatomacese, Edwards, 1616. 
Diatomaceae, Elmore, 1664. 
Diatoms, Boyer, 517. 
Dibelodon humboldtii Cuvier, Cope, 1087. 
praeeursor Cope, Cope, 1087. 
tropicus Cope, Cope, 1087. 
Dicamara Hall, Hall and Clarke, 2264. 
Dicellocephalus, Owen, Berkey, 429. 
misa Hall, Berkey, 429. 
Dicellograpsus gurleyi Lapworth n. sp., Gur- 
ley, 2217. 
intortus var. polythecatus n. var., Gurley, 
2217. 
Dicellomus Hall, Walcott, 5816. 
nanus M. and II. sp.,Walcott, 5816. 
Diceratherium, Hatcher, 2334. 
douvillei n. sp., Osborn, 1221. 
proavitum, Hatcher, 2338. 
Dichocoeniaalabamensisn.sp.,Vaughan,5735. 
Dichocrinus Minister, Wachsmuth and 
Springer. 5765a. 
angustus White, Wachsmuth and Springer, 
5765a. 
blairi Miller, Keyes, 3061. 
blairi n. sp., Miller, 3992. 
blairi S. A. Miller. Wachsmuth and 
Springer, 5765a. 
bozemanensis n. sp., Miller and Gurley, 
cinctus MMler and Gurley, Wachsmuth 
and Springer, 5765a. 
cinctus n. sp., Miller and Gurley, 3991. 
conus Meek and Worthen, Wachsmuth 
and Springer, 5765a. 
coxanus Worthen, Wachsmuth and 
Springer, 5765a. 
crassitestus White. Wachsmuth and 
Springer, 5765a. 
delicatus W. and Sp. (nov. spec), Wachs- 
muth and Springer, 5765a. 
dichotomus Hall, Wachsmuth and 
Springer, 5765a. 
ficus Cass, and Lyon, Wachsmuth and 
Springer, 5765a. 
liens Casseday and Lyon, Keyes, 3061. 
hamiltonensis Worthen, Wachsmuth and 
Springer, 5765a. 
humbergi, Miller, 3992. 
humburgi S. A. Miller, Wachsmuth and 
Springer, 5765a. 
huntsvillae W. and Sp. (nov. spec), 
Wachsmuth and Springer, 5765a. 
inornatus W. and Sp., Wachsmuth and 
Springer, 5765a. 
lachrymosus Hall, Wachsmuth and 
Springer, 5705a. 
laevis Hall, Wachsmuth and Springer, 
57.65a. 
lineatus Meek and Worthen, Wachsmuth 
and Springer, 5765a, 
