15 Brack. 
Systematic. 
2031 
•\LinnarssotieUa modesta p. 90, nitens 
p. 91, transversa, urania p. 92 spp. n. 
Cambrian, United States (Utah) Wal- 
cott Smithson. Misc. Collect 53. 
Liothyrina vide Terehratula. 
Liothyris vide Terehratula. 
■\Martinia (vide etiani Spirifer).—M. 
rhomhoidalis p. 364, shumardiana p. 
365 spp. n. Permian (Guadalupian), 
United States (Texas) Girty Q. S. Geol. 
Surv. Prof. Papr. 58.— M. triquetra var. 
n. pentagona Lower Carboniferous, China 
(Tian-schan) Grober N. Jahrb. Min. 
Beilagebd. 26 pp. 213-248. 
■\Meelcella attenuata p. 205, skenoides 
p. 206, dlfieilis p. 207, midtiUrata p. 
208 spp. n. Permian (Guadalupian), 
United States (Tex.as) Girty U. S. Geol. 
Surv. Prof. Papr. 58. — M. samarensis 
pp. 54, 127, gigantea pp. 55, 127, rari- 
costata pp. 56, 128, plana pp. 56, 128, 
volgenais pp. 58, 128 spp. n. Upper 
Carboniferous, Russia (Samara) Stuoken- 
BERO Mem. Com. geolog. 23. 
■\Megalanteris thunii sp. n. Devonian, 
Canada (Quebec) Clarke Bull. N. York 
Mus. 107 pp. 238-253 ; Clarke Mem. N. 
York Mus. 9 p. 168. 
'\Meristella champlaini sp. n. Devo- 
nian, Canada (Quebec) Clarke Bull. N. 
York Mus. 107 pp. 238-253 ; Clarke 
Mem. N. York Mus. 9 p. 175. 
■\Miekuntzella subgen. n. of Oholus, 
type 0. siluricus Walcott Smithson. 
Misc. Collect. 53 p. 70. 
■\Mickwitz\a occidens W. United States, 
pretiosa Sweden spp. n. Cambrian 
Walcott Smithson. Misc. Collect. 53 
p. 54. 
^Mieromitra liaydeni p. 55 (Idaho), 
nyssa p. 57 (Montana), stuarti p. 58 
(Utah), williardi p. 60 (Alabama) spp. n. 
Cambrian, United States ; M. louise p. 
57 Canada (Alberta), icapta p. 59 British 
Columbia spp. n. Cambrian ; M. seul- 
ptilis var. n. endliehi Cambrian, United 
States (Nevada) p. 56 Walcott Smith- 
son. Miscell. Collect. 53. 
fNtsusia rara United States (Idaho), 
(?) kanahensis p. 97 United States (Ari- 
zona), loici p. 98 British Columbia spp. 
n. Cambrian Walcott Smithson. Misc. 
Collect. 53. 
fNotothyris achuehertensis sp. n. and 
var. n. ovata Permian (Guadalupian), 
United States (Texas) Girty U. S. Geol. 
Surv. Prof. Papr. 58 p. 336. 
■fOholella gracilis [“ nitida ” p. 95 and 
pi.] sp. n. Cambrian, China Lorenz 
Zeitschr. Deutsch. geol. Ges. 58 p. 88 
figs. 
Oholus subgg. n. wide Fordinia, Mick- 
witzella. — O. membranaceous^ parvus 
p, 61 spp. n. Cambrian, Canada (British 
Columbia and Alberta) ; 0. smithi p. 62 
(Alabama), wortheni p. 63 (Idaho) spp. 
n. Cambrian, United States ; 0. teto- 
nensis var. n. leda Cambrian, United 
States (Utah) ; 0. (Fordinia) gilherti, 
perfectus p. 65 (Utah), dartoni (Wyo- 
ming) spp. n. Cambrian, United States ; 
0. ella var. n. onaquiensis p. 67 Cam- 
brian, United States (Utah) ; 0. elongatus 
p. 68, notehensis spp. n. Ordovician, 
United States (Utah), wasatchensis p. 69, 
Cambrian, United States (Utah, Idaho), 
Walcott Smithson. Misc. Collect. 53. 
■fOmhonia gen. n. of Orthothetinae, 
Caneva Boll. Soc. geol. Ital. 25 p. 440. 
^Orhieuloidea montis sp. n. Devonian, 
Canada (Quebec) Clarke Bull. N. York 
Mus. 107 pp. 284-289 ; Clarke Mem. N. 
York Mus. 9 p. 213. 
\Ortliostropkia canadensis sp. n. De- 
vonian, Canada (Quebec), and United 
States (Maine) Clarke Ilidl. N. York 
Mus. 107 pp. 284-289 ; Clarke Mem. N. 
York Mus. 9 p. 112. 
'fOrthotetes guadalupensis p. 199, de~ 
clivis p. 200, distoHus p. 201 and var. 
n. campanulatus p. 202 spp. n. Permian 
(Guadalupian), United States (Texas) 
Girty U. S. Geol. Surv. Prof. Papr. 58. 
^Orthothetes xcoolwortlianus mut. n. 
gaspensis Devonian, Canada (Quebec) 
Clarke Bull. N. York Mus. 107 pp. 277- 
284; Clarke Mem. N. York Mus. 9 
p. 199. 
Pelagodiscus sect. n. of Diseinisca for 
D. atlantica Dall Bull. Mus. Zool. Har- 
vard 43 p. 440. 
^Platidia cretacea sp. n. Cretaceous, 
United States (New Jersey) Weller 
New Jersey Geol. Surv. Paleont. Ser, 4 
p. 339. 
'fPlatystrophia aeutilirata var. n. 
senex p. 913, hjnx var. n. moritura p. 
920 Ordovician, United States (Indiana) 
Comings Rept. Geol. Nat. Res. Indiana 
32. 
