232 CALIFORNIA ACADEMY OF SCIENCES. 



The author includes in the fauna of the lowest horizon in Wisconsin: 

 Ptychoparia calt/menoides Whitf., Agraulos? fecundus n. sp., Orepicephctlus 

 onustus 11. sp., Ayraulos woosteri Whitf. 



In the next zone above, which is also included in the Middle Cambrian, 

 the following species occur: Pemphigaspis bullata Hall. Agnostnsl Crepi- 

 cephalus texanus Shum., C. iowensiis Owen. Ptychoparia connata 11. sp., 

 P. optatus Hall, P. (Lonchocephalus) chippeivensis Owen, P. ( L.) minor 

 Shum. Amphion matutina Hall, and Ayraulos thea n. sp. 



Waldschmidt (E.) Ueber die devonischen Schichteii 

 der Gegend von Wiidungen. 



In Zeitschr. Deutsch. Geol. Gesell., vol. 37, 1885, p. 906, pis. 37-40. 

 Bronteus thysanopeltis Barr. Phacops fecundus Barr. Acidaspis 11. sp. 

 Proetus 11. sp. 



Warder (John A.) New Trilobites. 



In Am. Jour. Sci., 1st series, vol.34, 1838, p. 377. 



Ceratocephala 11. g. 



This article on the new genus Ceratocephala was read before the Western 

 Academy of Science, May 25, 1838. 



The name Ceratocephala was proposed for a fossil from Springfield, 

 Ohio, well described and illustrated. The original specimen which received 

 the name of Ceratocephala yoniata was a large head of a trilobite with 

 bases of conspicuous spines upon the occipital ring. The author illus- 

 trated the fossil in an inverted position and regarded the occipital spines 

 as antennae. 



Washburn (W. T.) New Trilobites. 



In Am. Jour. Sci., 3d series, vol. 6, 1873, p. 186. 



Not descriptive; contains important notes on fossil Crustacea. 



Weiss (C. E.) Note on Esthere (Esther iella ) costata and 

 Esthere (Esther iella) lineata Weiss. 



In Zeitsch Deutsch Geol. Gesell., Berlin, vol. 27, 1875, p. 711. 



Weitenweber (W. E.) Systematisches Verzeiclmiss 

 der bohmischen Trilobiten in der Sammlung des Dr. 

 /eidler. 



In Lotos, vol. 7, 1847, pp. 5-42. 



Wetherby (A. G.) Description of a new family and 

 genus of Lower Silurian Crustacea. 



In Jour. Cincinnati Soc. Nat. Hist., vol. 1, 1878-79 ; p. 162, fig.; vol. 2, 

 pi. 7, figs. 1, 1 a-g. 



Enoploura balanoides n. sp. 



This fossil is probably a Cystidre and not of the order Crustacea. 



