252 CALIFORNIA ACADEMY OF SCIENCES. 



Quadersaiidstein, jenaischen bunten Sandsteiii und 

 bohmischen Uebergangsgebirge, mit 6 illuminirten Kup- 

 fertafeln. Jena, 1833. 



Olenus longicaudatus u. sp., 0. pyramklalis n. sji., 0. latus u. sp. Ota- 

 rion u. g., 0. diffractum u. sp., OJ squarrosum u. sp. Conocephalus u. 

 g., C. costatus n. sp. ElUpsocephaliis n. g., E. amhiguus u. sp. 



The geuus Otarion was made up from the head of Cyphaspis burmeisieri 

 Barr., connected with the iij'gidiuui of Cromus heauvionti Barr. The 

 second species, described as Otarion? squarrosum, is i-eferred by Barraude 

 to Cheirurus quenstedti. 



Zenker uses two generic names for his new genns Conocepihalus, the first 

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

 5, where he calls it Trifjonocephalus . 



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 typi'cal species described as Conocephalus costatus on p. 49, and also 

 in the explanation of pi. 5, figs. G-K, p. 51, as Trigonocep>h,alus costcUus 

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

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

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

 ing the older name of ElUpsocephaliis hoffi Schlotb. 



Zeno (Franz). Von Seeversteinerungen und Fos- 

 silien, welclie bei Prag zu finden sind. 



In Neue phys. Belustigi;ngen, etc., vol. 1, 1770, p. (J5. Continiied same 

 vol., p. 36-2, pi. 1, fig. 1. 



Under the names of Cacada or Kafermuschel Zeno describes thepygidium 

 of Dalmanltes hausmanni and the head of Phacops latifrons Bronn. 



Zittel (Karl A.) Handbuch der Pakeontologie. 

 Mlinchen 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, 

 Phylloiwda. 5, Trilobitae. 



B. Merostomata. 6, Xiphosura. 7, Gigantostraca. 



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 niimeroi;s illustrations; 

 also, tabulated stratigraphic distribution of the genera. 



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



