206 CALIFORNIA ACADEMY OF SCIENCES. 



4. Paradoxides. 1, P. tcssini Brong. 2, P. spinulosus Brong. 3, P. 

 tjibbosus Wahl. 4, P. Bucephalus Wahl. 



5. Agnostus. 1, A. pisiformis Linne. 



1, 7Vz7. (Calymene) sulzeri Schloth. 2, ZV7. (Calymene) hoffi Schloth. 

 3, Tril. problematicus Schloth. 4, Tril. cassicauda Wahl. 5, Tril. bitu- 

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

 8, Tril. schlotheimii Bronn. 9, Tril. catenatus n. sp. 10, Tril. esmarkii 

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

 bruschst. von. Tril. aus Eeval. 14, Tril. sp.? 15, Tril. sternbergii'BoGcls.. 



Schmid (E. E.) Die kleineren organischen Formen 

 des Zechsteinkalkes von Sellers in der Wetterau. 



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

 The author gives a brief notice of the following species: 

 Cythere (Cytherella) nuciformis Jones, C. pyrrhce Eichw., C. elongata 

 Geinitz, C. morrisiana Jones, C. (Bairdia) mucronata Eeuss, C. (Bairdia) 

 rhomboidea Kirkby, C. (Cytherella) tyronica Jones, C. richteriana Jones, C. 

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

 Eeuss, C. (Bairdia) plebeja, pi. 6, figs. 1-45, Eeuss, C. (Bairdia) brevicauda 

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

 acuta Jones, C. (Bairdia) ampla Eeuss. 



Schmidt (Fr. ) Untersuchungen iiber die silurische 

 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 



silurischen Leperditien mit Hinzuziehung einiger Arten 

 aus den Nachbarlandern. 



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



Leper ditia grandis Schrenk, L. barbotana n. sp., L. tyraica n. sp., L. 

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

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

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



Einige Bemerkungen iiber die podolisch-gali- 



zische Silurformation und deren Petrefacten. St. 

 Petersburg, 1875, 1 pi. 



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

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

 Calymene blumenbachii Brong. Phacops caudatus Briinn, P. downingice 

 Murch. ProetusconcinnaDalm.. Cyphaspis elegantulus Loven. Pterygotus 

 anglicus Agas. The author illustrates Phacops doivningice and Illcenus 

 (Bumastus) barriensis. 



