Brachiopoda. 105 



Chonostroph'ia Undenensis n. sp. 

 Mississijjpi Valley, Silurian. Foerste. 

 7454. 



Cliftonia n. snbpien. (Triplecia). 

 Mississippi Valley, Silurian. Foerste. 

 7454. 



Clitamhonites diversus — 7-oge7-8ensls n. 

 var; Mississippi Valley. Foerste. 

 7456. 



Crania granulosa — cumber] andensh n. 

 var. Mississippi V'alley. Foerste. 

 7457. 



Cyclocoella crassiplicata n. sp. Mis- 

 sissippi Valley. Foerste. 7457. 



Dalmanella nn. spp. Mississippi Valley, 

 Cincinnatian. Foerste. 7455. 



Dinorth'is ulrichl ii. sp. Mississippi 

 Valley. Foerste. 7450. 



Eridortltis n. subgen. (Pleetorthis). 

 Mississippi Valley, Cincinnatian. 



Foerste. 7455. 



Gypidula simplex n. sp. Mississippi 

 Valley, Silurian, Foerste. 7454. 



Hebertella (Schizonema) nn. spp. 

 Mississippi Valley, Silurian. Foerste. 

 7454. 



alveata n. nom. ilissis- 



sippi Valley, Cincinnatian. Foerste. 

 7455 



maria — parltsensis n. var. 



Mississippi Valley. Foerste. 7450. 



Homoeospira sahueherti — elongata n. 

 var. et sp. Mississippi Valley, Silurian. 

 Foerste. 7454. 



Leptaena gihhosa — invenusta n. var. 

 Mississippi Valley. Foerste. 7450. 



richmondensia nn. nom. et 



var. Mississippi Valley, Cincinnatian. 

 Foerste. 7455. 



Leptoholus lepis — eliftonensis n. var. 

 Mississippi Valley. Foerste. 7457. 



TAngidn icaynesborocnsis n. sp. Mis- 

 sissippi Valley. Foerste. 7457. 



MenMina maria — roemeri n. var. 

 Mississippi Vallev, Silurian. Foerste. 

 7454. 



Orthis flabellites — militaris nn. varr. 

 et spp. Mississippi Valley, Silurian. 

 Foerste. 7454. 



Ortliostropliia nn. spp. Mississippi 

 Valley, Silurian. Foerste. 7454. 



Pentamerxis divergeiis n. sp. Indiana, 

 Silurian. Foerste.' 7453. 



2031 



I'latymerella rnanniensis n. sp. Mis- 

 sissippi Vallev, Silurian. Foerste. 

 7454. 



Platystrophia nn. spp. et varr. ilis- 

 sissippi Valley. Foerste. 7457. 



nn. nonnn. ilississippi 



Valley, Cincinnatian. Foerste. 7455. 



• pauciplieata n. sp. Ohio, 



Silurian. Foerste. 7453. 



Pleetorthis (Eridorthis) nn. spp. Mis- 

 sissippi Vallev, Cincinnatian. Foerste. 

 7455. 



Rafmesquina icincliestcrensis n. sp, 

 Mississippi Valley. Foerste. 7457. 



Tihipidomella magnieardinalis n. sp. 

 Kentucky, Silurian. Foerste. 7453. 



newsomensis n. sp. 



Mississippi Valley, Silurian. Foerste. 

 7454. 



Rlujnehonella (Stegerhynchus) nn. varr. 

 Mississippi Vallev, Silurian. Foerste. 

 7454. 



Ehynchotrema dcntata — arnheimensis 

 n. var. Mississippi Valley, Cincinnatian. 

 Foerste. 7455. 



manniensi>i n. sp. Missis- 

 sippi Valley. Foerste. 7456. 



Bhynchotreta nn. spp. Mississippi 

 Valley, Silurian. Foerste. 7454. 



Scenidium bassleri n. sp. Mississippi 

 Valley, Silurian. Foerste. 7454. 



Schizonema n. subgen. {Hebertella). 

 Mississippi Valley, Silurian. Foerste. 

 7454. 



Sdiuehertella confertns n. sp. Ken- 

 tucky, Silurian. Foerste. 7453. 



Spirifer nn. varr. et spp. Kentucky 

 and Ohio, Silurian. Foerste. 7453. 



Stegerhynclins n. subgen. {Uhynclio- 

 nclla). Mississippi Valley, Silurian. 

 Foerste. 7454. 



Strophcodonta nn. spp. Kentucky, 

 Silurian. Foerste. 7453. 



(Brachyprion) iieicsomcnsis 



n. sp. Mississippi Valley, Silurian. 

 Foerste. 7454. 



Strophomcna nn. spp. Mississijjpi 

 Valley, Cincinnatian. Foerste. 7455. 



Stroplionella nn. spp. et var. Missis- 

 sippi \'alley, Silurian. Foerste. 7454. 



Triplecia (Cliftonia') nn. spp. 

 Mississippi Valley, Silurian. Foerste. 

 7454. 



