200 INDEX TO NORTH AMERICAN GEOLOGY, PALEONTOLOGY, [bull. 189. 
Paleontology— Continued. 
Gem ra and species described— Continued. 
Dichocrinus liratus Hall, Wachsmuth and 
Springer, 5765a. 
oblongus W. and Sp. (now spec), Wachs- 
muth and Springer, 5765a. 
ornatus W. and Sp., Wachsmuth and 
Springer, 5765a. 
ovatus 0. and Shum., Wachsmuth and 
Springer, 5765a. 
parvulus S. A. Miller, Wachsmuth and 
Springer, 5765a. 
pendens W. and Sp. (nov. spec), Wachs- 
muth and Springer, 5765a. 
pentalobus (Cass, and Lyons), Wachs- 
muth and Springer, 5765a. 
pisum Meek and Worthen, Wachsmuth 
and Springer, 5765a. 
plicatus Hall, Wachsmuth and Springer, 
5765a. 
polydactylus Casseday and Lyon, Wachs- 
muth and Springer, 5765a. 
scitulus Hall, Wachsmuth and Springer, 
5765a. 
striatus O. and Shum., Wachsmuth and 
Springer, 5765a. 
striatus Owen and Shumard, Keyes, 
3061. 
superstes W. and Sp. (nov. spec), Wachs- 
muth and Springer, 5765a. 
. ulrichi Miller and Gurley, Wachsmuth 
and Springer, 5765a. 
ulrichi n. sp., Miller and Gurley, 3991. 
Dichograptus logani Hall, Matthew, 3716. 
nitidus (Hall),var., Matthew, 3746. 
ramosus, James, 2881. 
Dichograpsus remotus n. sp., Gurley, 2217. 
D:'colocapsa, Matthew, G. F., 3760. 
Dicranella n. gen., Ulrich, 5540. 
bicornis n. sp., Ulrich, 5540. 
marginata n. sp., Ulrich, 5540. 
(?) simplex n. sp., Ulrich, 5540. 
spinosa n. sp., Ulrich, 5540. 
Dicranograptus, James, 2881. 
Dicranograptus furcatus (Hall), Gurley, 2217. 
nicholsoni var. diapason n. var., Gurley, 
2217. 
nicholsoni var. parvangulus Gurley, Gur- 
ley, 2217. 
Dicranomyia fontainei, Scudder, 4894. 
fragilis, Scudder, 4894. 
interna, Scudder, 4894. 
longipes, Scudder, 4894. 
primitiva, Scudder, 4894. 
rostrata, Scudder, 4894. 
stagnorum, Scudder, 4894. 
stigmosa, Scudder, 4894. 
Dioranophyllum?sp., White, 6050. 
Dieranopora, Simpson, 4983. 
parva n. sp., Ami, 79. 
Dictyoeephalus, Matthew, G.F., 3760. 
Dictyonema, James, 2881. 
actinotum n. sp., Gurley, 2217. 
arbusculum, James,. 2881. 
blairi n. sp., Gurley, 2217. 
crassum n. sp., Girty, 2034. 
delicatulum Dawson, var., Matthew, 3746. 
Paleontology — Con tinued. 
Genera and species described— Continued. 
Dictyonema, flambelliforme Eichwald, Mat- 
thew, G.F., 3762. 
cf. neenah Hall, Gurley, 2217. 
neenah, Whitfield, 6102. 
perexile n. sp., Gurley, 2217. 
cf. splendens Billings, Clarke, 971. 
Dictyophytra(?) walcotti n. sp., Rauff, 4548. 
Dictyopteris carrii (Lx.), White, 6049. 
gilkersonensis D. W., White, 6049. 
squarrosa Ett. sp., White, 6040. 
Dictyorhabdus priscus n. gen. et sp., Walcott, 
5780. 
Dictiospongia n. gen., Hall and Clarke, 2269, 
2270. 
almondensis n. sp., Hall and Clarke, 2269, 
2270. 
(?) bacteria n. sp., Hall and Clarke, 2269, 
2270. 
charia n. sp., Hall and Clarke, 2269, 2270. 
cylindrica Whitfield (sp.), Hall and Clarke, 
2269, 2271. 
eumorphia n. sp., Hall and Clarke, 2269. 
2270. 
haplea n. sp., Hall and Clarke, 2269,2270. 
lophura n. sp., Hall and Clarke, 2269, 2270. 
(?) marcellia Clarke (sp.), Hall and Clarke, 
2269, 2270. 
morini Barrois (sp.), Hall and Clarke, 
2269, 2270. 
sceptrum Hall (sp.), Hall and Clarke, 2269, 
2270. 
siraea n. sp'., Hall and Clarke, 2269, 2270. 
(?)stylina n. ,jp.,Hall and Clarke,2269, 2270. 
(Mastodictya) osculada n. sp., Hall and 
Clarke, 2269,2770. 
Dicynodon, Case, 7<>8. 
Didymictis Cope, Osborn, 4183. 
haydenianus Cope, Matthew, 3801. 
protenus varaltidens Cope, Osborn, 4193a. 
Didymoceras n. gen., Hyatt, 2819. 
nebrascense, Hyatt, 2819. 
Didymograptus bipunctatus n. sp., Gurley, 
2217. 
convexus n. sp., Gurley, 2217. 
hirundo Salter, Gurley, 2217. 
perflexus n. sp., Gurley, 2217. 
sagitticaulis n. sp., Gurley, 2217. 
Didymosorus ? bindrabunensis acutifolius 
Fontaine, Ward, 5857. 
Dielasma King, Grabau, 2086. 
Dielasma King, Hall and Clarke, 2261a, 2264. 
obovatum, Hall and Clarke, 2268. 
turgida, Beecher and Schuchert, 358. 
turgida Hall var. elongatan. var., Weller, 
5986. 
Utah Hall and Whitfield, Girty, 2038. 
(Cransena) romingeri Hall, Grabau, 2086. 
(Cranaena Hall), Hall and Clarke, 2264. 
sp.?, Weller, 5994. 
Dielasmina Waagen, Hall and Clarke, 2261a, 
2264. 
Digonioceras n. gen., Hyatt, 2819. 
rotundum n. sp., Hyatt, 2819. 
Dillwynella naticoides Lea, Dall, 1259. 
? texana n. sp., Harris, 2307. 
