276 
PALEONTOLOGY OF THE EUREKA DISTRIOT. 
DEVONTIAN—Continued. 
= a OA Sel ies See 
; Ag 
Genera and species. B A | Sis Remarks. Page. 
B\ ele 
A =) 
(M.) glabra, var., Nevadensis, |------ B41 RE S504 crs. copra sasmacecenaueccce Cn) Perce rec oe ce dO> eee we 3) 
n. var. : 
(M.) Maia Billings. .....-..----- x SOFA Spee Up. Held. of New York and Canada....... aiaaseemns 141 
(M.) undifera Reemer..--.------ al Resse] pemses| Peer ecccec a Gos See concaco sore a nes eC ose nooS cosensco: 143 
Spiriferina cristata Schlothem (sp.)- X. | Also in Carboniferous......--.2---csce-ccnsecc-o2---| 218 
Amboccelia umbonata Conrad (sp.)-- x | Ham. Group of New York .......--..----------+s2+-[-+--20+*+ 
Cyrtina Davidsoni, n. sp. -----------+-+-|-+--++-|------ KOS eten ce nesicelecome seawennnanac rsa anencer=haleewsae=maSna 146 
Hamiltonensis Hall ..-....-.-----]------ 60) | ews | etree a cacao ne ee Sitane o sfetace ate erat tareietaa( ee rataielt ee meter 147 
Nucleospira concinna Hall..-.--.. X |------]------ Up. Held. and Ham. of New York..........--- Osenc 147 
Trematospira infrequens, D. Sp ----------] XK |es----|--2 22 [eee eee eee eee eee te eee nent ee newer et een re nes 151 
Retzia radialis Phillips (sp.) -| X | Also in Carboniferous.........-.-....-.---00 Pron abad 220 
Athyris Angelica Hall....---.--..-----+-|----+- X |----- Ch. of New York -..-..-.---.-..-« =Spqoane rescsno- 148 
pagent eceee er Of the type of Athyris plano-sulcata .......--------|--------- 
sp. ?... se ahets soe 0 eee Bema ee et Senet an nase Sa esses oOnC Oke snoop aero Scir 3 148 
Meristella (W.) nasuta Conrad (sp.) - x Up. Held. of New York....-...----. .cscesensse==--- 148 
Atrypa desquamata Sowerby. .--..--.---- x Devonian of England......-.-...----..---.. sorccess 150 
reticularis Linn, (sp.).-----.----- x x X | Devonian of America, Europe, eto......-....------- 150 
Rhynchonella castanea Meek .......-..-- x xX |------ Type from Mackenzie River, B. A......-..-.------- 153 
duplicata Hall........-.-..|------ x X | Chemung ef New York.........--.... 155 
Emmonsi H. & W Geol. Expl. Yortieth Par., vol. iv, p. 247 -- 157 
Horsfordi Hall..-......--- Hamilton of New York....-.....--......--- 152 
pugnus Martin.........--- -| Devonian of Ohio, New York, and England. 155 
? occidens, 0. Sp--.-------.] XX |enewe-) XM |---------------------- ++ 22-25 eee eee 
quadricosta Hall Genesee Slate of New York ........-..... 
Tethys Billings .....-...-. -| Up. Held. of Canada and Falls of Ohio.. 
(L.) Laura Billings. .-...-.. seee x Ham. of Canada and New York 
(L.) Nevadensis, n. sp ----- Booos|) pe) cece) sce coca cena See se Sen near SRS ceri ca Sscseosees 
(1..) sinuatus Hall. .-....-.|------ x Chemung of New MOrkose- ces ccrceseeessawesc= so 
Leptocoelia, sp. ?-.------.-----------+--= X |------|------ Not unlike L. acutiplicata Hal 
Pentamerus comis Owen (sp.)------------ XK | .nee-e|------ Ham. and Chemung of Iowa .-.......... venseweacced 159 
Lotis, n. sp ..---.2--.222--2-|eeeees|eeneee Pe Wo see ce Sat rine eRe ne cmp Ose sere SD OSA LCOSER SEE 161 
Tropidoleptus carinatus Hall .....-...... MK ecaman|pencee Found in Pifion Range, Nevada. .....-...--..------.|---+2-* S5 
Cryptonella? circula, n.sp.-..------.---- 3 |OSsec0 eS) |Soosbeg sec koiscmogs sssSeonecnosaneanasaSsnenosbodess0o¢ 163 
Pifonensis, n. sp.--..-------|------ org ecOsed| hea Seasceon Scousseadosaoosoco ceeroososcos Raeeeeeneaee 163 
Terebratula, sp. ?..-...-.-------.------0-|se0ee-|---=-- oS Wesscccannsenecacceeh bab essoceccocatsoscececen Sereoos| Satcnsess 
LAMELLIBRANCHIATA, 
Aviculopecten? catactus Meek .......--.|-- ween] .ccn-- X | Geol. Expl. Fortieth Par., vol. iv, p. 93 ......-.....--.|------=-- 
Pterinopecten, sp. ?...-..-----.------e0--[-*2-"- fees | ROK | ioe cee aces alt Saeata ae eee Be eee 
Glyptodesma, sp. ?. -..--..---------+-22--|*20°*° Ses | ere ete ee ee Soe eee a! SonResce 
Pterinea Newarkensis, 0. 8p...-.-..-----|+----- Koi ea eem= | ecneeaee senha a eae an eee eae enema Seccacked 165 
flabella Conrad -..--.-..---..--.- XE Sees ------| Upper Held. to Chemung of New York......-...... 165 
Actinopteria Boydi Conrad (sp.).--...--. XK |-nee--|ee--e- Ham. Group of New York ...-.. srenoteeanncnc 166 
Leiopteria Rafinesquii Hall..........-... X |------|------ Ham. Group of New York ..-... BESS SaCA RSC see --| 166 
Leptodesma transversa 0. 8p-..--..--.--- feecre KI paeane| se newelse ee mariaciay aaa sinan= 167 
Limoptera sarmenticia, n. sp---.....---.- X  |------|--eee- = 167 
Mytilarca dubia, n. sp -.....-.-----...20- ne | be coecl epcoed| Pee ececs 168 
Chemungensis Conrad (sp.)...|------ X  |------ Chemung @ 168 
SD ial eawe eee mpl atenc enn a=rsies X ]------|-- BOR NSescooscdstccceSeecoosasosca= aloe semnenm 
(Plethomytilus) oviformis Con-- X |------ ------| Ham. Group of New York ...-.....--......--------- 169 
rad (sp.). 
Modiomorpha altiforme, n. sp.--..--. cece] -X 169 
oblonga, . Sp -.---.--..--- x 170 
