206 CALIFORNIA ACADEMY OF SCIENCES. 



4. Paradoxldes. 1, P . tcssini Brong. 2, P. spinulosits Brong. 3, P. 

 (/ibbosus Wahl. 4, P. hucephaliis Wahl. 



5. Agnostus. 1, A. pis>for7nis Liune. 



1, Tril. (CJalymene) sulzeri Schloth. 2, Tril. {Cabjmene) hoffi Schloth. 

 8, Tril. problematicus Schloth. 4, Tril. cassicauda Wahl. 5, Tril. hitu- 

 minosus Schloth. 6, Tril. gracilis Boeck. 7, Tril. conophthalnius S. & B. 

 8, Tril. schlotheimii Bvonn. 9, Tril. catetiatus n. sp. 10, Tril. esmarkii 

 Schloth. 11, Tril. velatus Schloth. 12, Tril. borealis u. sp. 13, Tril. 

 brnschst. vou. Tril. aus Keval. 14, Tril. sp.? 15, Tril. sternbergii 'Boeck. 



Schmid (E. E.) Die kleineren organischeu Formen 

 des Zechsteiukalkes von Sellers in der Wetterau. 



In Neues Jahrbuch ftir Mineral., 1867, p. 576, pi. 

 The aiithor gives a brief notice of the following species: 

 Cythere (Cytherella) Jiuciformis Jones, C. pyrrha Eichw., C. elongata 

 Geinitz, G. morrisiana Jones, C. (Bairdia) mucronata Reuss, C. [Bairdia) 

 rhomboidea Kirkby, C. {Cytherella) tyro7uca Jones, C. richteriana Jones, C. 

 kutorgana and C. (Bairdia) subreniformis Kirkby, C. (Bairdia) frumentum 

 Reuss, C. (Bairdia) j>lebej a, pi. 6, figs. 1-45, Reuss, C. (Bairdia) brevicauda 

 Jones, C. (Cytherella) inornata, C. (Bairdia) kingi Reuss, C. (Bairdia) 

 acuta Jones, C. (Bairdia) ampla Reuss. 



Schmidt (Fr. ) Untersuchungen liber die silurisclie 

 Formation von Ehstland, Nord-Livland und Oesel. 



In Archiv Naturk. Liv-, Ehst- u. Kurl., Dorpat, vol. 2, 1858-59, pp. 

 443, 445, 448, 453, 461, 463.* 



Miscellanse Silurica. I. Ueber die russischen 



silurisclien Leperditien mit Hinzuziehung einiger Arten 

 aus den Nachbarlandern. 



In Mem. Acad. Imp. Sci. St. Petersburg, vol. 21, No. 2, 1873, 1 pi. 



Leperdiiia grandis Schrenk, L. barbotana n. sp., L. tyraica n. sp., L. 

 angelini n. sp., L. balthica His., L. hisingeri u. sp., L. eichivaldi n. sp., L. 

 loiluiensis n. sp., L. parallela n. sp., L. marginata Keys., L. keyserlingi 

 n. sp. Isochilina biensis Griinew, /. jnnictata Eichw., /. maakii n. sp. 



Einige Bemerkungen liber die podolisch-gali- 



zisclie Silurformation und deren Petrefacten. St. 

 Petersburg, 1875, 1 pi. 



Eurypterus Jischeri Eichw. (E. tetragonophthalmus Fischer). Encrinurus 

 punctatus Brilnn, E. obtusus Ang. Illcenus (Bumastus) barriensis Murch. 

 Calymene blumenbachii Brong. Phacops caudatus Briinn, P. downingioe 

 Miarch. ProetusconcinnaDsilm.. Cyphaspis elegantulusl-iOV^Ti. Pterygottis 

 anglicus Agas. The ai;thor illustrates Phacops downingice and Illcenus 

 (Bu^ruistus) burrietms. 



