XV111 THE PALEONTOLOGY OF MINNESOTA. 



C. alveolata Gold/., p. 45, Druramond. 



Catenipora labyrinthica Goldf., pi. xvn, flg. 2, p. 45, Drummond et bords du lac Superieur. 



C. escharoides Lam., pi. xvn, flg. 3, p. 45, Lac Huron. 



C. michelini Casteln., pi. xvii, flg. 1, p. 45, He Drummond. 



Syringopora verticillata Goldf., p. 45, Drummond He du Castor. 



Astnea mamillaris Fischer, pi. xxiv, flg. 3. p. 45, River de 1'Ohio. 



Strombodes pentagonus Goldf., p. 45, Lac Huron. 



Calamopora fuvosa, idem, p. 46, He Manltoullne. 



C. mlnutissina Casteln., pi. xix, flg. 2, p. 46, He Drummond. 



C. minuta, idem, p. 46, idem., bords du lac Erie. 



C. radians, idem, pi. xvm, flg. I, p. 46, Buffalo, N. Y. 



C. cellulata, idem, p. 46, Lac Huron. 



C. basaltica Goldf., pi. xvm, flg. 3, p. 46, bords du lac Erie. 



C. polymorpha, idem p. 46, Bale Verte. 



C. gothlandica Lam., p. 46, Buffalo, N. Y. 



C. inflata de Koninck, p. 47, Bale Verte. 



C. goldfussii Casteln., p. 47, Lac Huron, Baie Verte. 



0. flbrosa Goldf., pi. xix, flg. 4, p. 47, Trenton, N. Y. 



C. verneuili Casteln., pi. xxni, flg. 2, p. 47, Quebec. 



Cyatbophyllum hexagonum Goldf., p. 47, Lac Huron. 



C. goliah, Casteln., pi. xx, flg. 1, p. 47, He Drummond. 



C. atlas, idem, pi. xx, flg. 2, p. 47, He Drummond. 



C. goldfussi, pi. xxi, flg. 2. p. 47, Buffalo, N. Y. 



C. plicatum? Goldf., p. 48, He Makinau (Huron). 



C. ceratites, idem, p. 48, He Drummond. 



C. ammonis Casteln., pi. xxi, flg. 1, p. 48, New York. 



C. vicinum, idem, pi. xxn, flg. 6, p. 48, idem. 



C. conicum, idem, pi. xxi, flg. 4, p. 48, Bords de 1'Ohio. 



C. plicatulum, idem, pi. xxn, flg. 4, p. 48, He Drummond. 



C. dilatatum, idem, pi. xxi, flg. 3, p. 48, Lac Huron. 



C. striatulum, pi. xxii, flg. 1, p. 48, Lac Huron and Erie. 



C. michelini, idem, pi. xxii, flg. 3, p. 49, He Drummond. 



C. arborescens, idem, pi. xxii, flg. 2, p. 49, Lac Huron. 



C. orbygnyi, idem, pi. xxii, flg. 7, p. 49, Batavia, N. Y. 



C. rollinii, idem, pi. xxn, flg. 5, p. 49, He Drummond. 



C. distinctum, idem, pi. xxii, flg. 8, p. 49, He Manitoulines. 



C. agglomeration, idem, pi. xxi, flg. 5, p. 49, Idem. 



Lithodendron irregulare Phill., pi. xxni, flg. 1, p. 49, Lac Huron. 



Axinura, Casteln., p. 49. 



A. canadensis, idem, pi. xxiv, flg. 4, p. 49, Lac Sainte-Clalre. 



Gorgonia ripisteria, Goldf., pi. xxiv, flg. 3, p. 50, Schoharie, N. Y. 



G. anticorum Casteln., pi. xxiv, flg. 1, p. 50, Lac Huron. 



G. siluriana, idem, p. 50, idem. 



Eschara scapellum Jlurch., p. 50, lies Manitoulines. 



Orinoidea. 



Grisonoina antiqua Casteln., n. sp., et. gen., pi. xxv, flg. 1, p. 50, Genesee, N. Y. 

 Cariocrinites ornatus Say, pi. xxv, flg. 2, p. 51, Lockport, N. Y. 

 Pentremites florealis, idem, pi. xxv, flg. 3, p. 51, Kentucky and Alabama. 

 Encrinites, pi. xxv.flgs. 4-11, Lac Huron and Lac des Senecas. 

 Apiocrinites rosaceus Schl., pi. xxv, flg. 12, p. 51, Lac des Senecas. 

 Encrinites, pi. xxvi, flgs. 1-4, p. 51, New York and Lac Huron. 

 Corps inconnus, pi. xxvn, flgs. 1-7, Trenton and Lac Huron. 



T. A. Gonrad. 



1843. Observations on the lead-bearing limestone of Wisconsin, and descriptions of a new 

 genus of triloMtes and fifteen new Silurian fossils, by T. A. CONRAD. Proc. Acad. Nat. 

 Sci., Philadelphia, 1843, Vol 1, 1841-43. 



The new genus is Thaleops, and the specific name given is ovata. It was from Mineral 

 Point. Mr. Conrad unhesitatingly assigns the lead-bearing beds to the Trenton, viz: 



