252 CALIFORNIA ACADEMY OF SCIENCES. 



Quadersandstein, jenaischeii bunten Sandsteiri und 

 bohmischen Uebergangsgebirge, mit 6 illuminirten Kup- 

 fertafeln. Jena, 1833. 



Olenus longicaudatus n. sp., . pyramid alls n. sp., 0. latus n. sp. Ota- 

 rion n. g., O. diffractum n. sp., 0.? squarrosum n. sp. Conocephalus n. 

 g., C. costatus n. sp. Ellipsocephalus n. g., E. ambiguus n. sp. 



The genus Olarion was made up from the head of Cyphaspis burmeisteri 

 Barr., connected with the pygidium of Cromus beaumonti Barr. The 

 second species, described as Otarion? squarrosum, is referred by Barrande 

 to Cheirurus quenstedti. 



Zenker uses two generic names for his new genus Conocephalus, the first 

 on p. 48 in describing the genus and the second in his description of plate 

 5, where he calls it Triyonocephalus. 



Both these generic terms had been used in natural history for other 

 genera, the first by Thurnburg in 1812 for a genus of the Orthoptera, and 

 the second by Oppel in 1811 for the Reptiles. 



The typical species described as Conocephalus costatus on p. 49, and also 

 in the explanation of pi. 5, figs. G-K, p. 51, as Trigonocephalus costatus 

 has been referred by Barrande to an amended genus, Conocephalites (Zenker) 

 Barr., and the species to the older name of sulzeri. The other new genus, 

 Ellipsocephalus, has been used by all subsequent authors, the species tak- 

 ing the older name of Ellipsocephalus hojffi Schloth. 



Zeno (Franz). Von Seeversteineruiigen und Fos- 

 silien, welche bei Prag zu finden sind. 



In Neue phys. Belustiguiigen, etc., vol. 1, 1770, p. 65. Continued same 

 vol., p. 362, pi. 1, fig. 1. 



Under the names of Cacada or Kafermuschel Zeno describes the pygidium 

 of Dalmanites hausmanni and the head of Phacops latifrons Bronii. 



Zittel (Karl A.) Handbuch der Paleeontologie. 

 Miinchen. und Leipzig, 1881-85. 



The Crustacean are described in I, Band. II, Abtheilung. Ill, Lief- 

 erung, 1885. 



The class is arranged in the following order: 



A. Entomostraca. 1, Cirripedia. 2, Copepoda. 3, Ostracoda. 4, 

 Phyllopoda. 5, Trilobitae. 



B. Merostomata. 6, Xiphosura. 7, Gigaiitostraca. 



C. Malacostraca. 8, Phyllocarida. 9, Isopoda. 10, Amphipoda. 11, 

 Stomatopoda. 12, Cumacea. 13, Schizopoda. 14, Decapoda. 



The author gives a diagonis of each genus, with numerous illustrations; 

 also, tabulated stratigraphic distribution of the genera. 



Zippe (F. X.) See Sternberg (Rasper Graf von). 



