88 CALIFORNIA ACADEMY OF SCIENCES. 



Description of a new species of Stylonurus 



from the Catskill group. 



In Thirty-sixth Kept. New York State Mus. Nat. Hist., 1884, p. 76, pi. 5. 



Stylonurus excelsior Hall. 



There was a short notice of this species published by D. S. Martin 

 (Trans. New York Acad. Sci., vol. 2, 1882, p. 8). This notice was based 

 upon a cast of the carapace in the New York State Museum, which had 

 been labeled with name and locality by Prof. James Hall. 



and Whitfield (R. P.) Descriptions of new 



species of fossils from the vicinity of Louisville, Ky., 

 and the Falls of the Ohio. 



In Twenty-fourth Kept. New York State Mus. Nat. Hist., 1872, p. 181, 

 pi. 13, figs. 20 and 21. 



Illcenus cornlgerus H. & W. 



Geological Survey of Ohio. Vol. 2. Geology 



and palaeontology. Pt. 2. Palaeontology. 1875, p. 67, 

 pis. 1-12. 



Leper ditia (Isochilina) cylindrica Hall, L. (Isochilina) minutissima Hall. 

 Beyrichia tumifrons Hall, B. oculifera Hall, B. chamber si Miller, B. quad- 

 rilirata n. sp. Plumulites jamesi n. sp. Calymene christyi Hall. Dai- 

 mania breviceps Hall. Proetus parvisculus Hall. Calymene niagarensis 

 Hall. Encrinurus ornatus n. sp. Lichas breviceps Hall. 



Palaeontology. 



In U. S. Geol. Expl. 40th Parallel, vol. 4, pt. 2, 1877, 7 pis. 



Crepicephalus (Loganellus) haguei n. sp., C. (L.) nitidus n. sp., C. (L.) 

 granulosus n. sp., C. (L.) unisulcatus n. sp., C. (L.) simulator n. sp., C. 

 (L.) anytus n. sp., C. (Bathyurus?) angulatus n. sp. Pterocevhalus : 

 Conocephalites (Pterocephalus) laticeps n. sp. Ptychaspis pusulosa n. sp. 

 Chariocephalus tumifrons n. sp. Dikellocephalus bilobatus n. sp., D.fla- 

 bellifer n. sp. Agnostus communis n. sp., A. neon n. sp., A. prolongus n. 

 sp., A. tumidosus n. sp. Conocephalm subcoronatus n. sp. Crepicephalus ? 

 ( Loganellus Jquadrans n. sp. Dikellocephalus quadriceps n. sp., D. wah- 

 mtchensis n. sp., D. ? gothicusn. sp. Bathyurus pogonipensis n. sp. Ogy- 

 gia producta n. sp., 0. parabola n. sp. Proetus peroccidens n. sp., B. lo- 

 ganensis n. sp. Crep. (L.) maculosus n. sp. Dikellocephalus multicinctus 

 n. sp. 



- assisted by Clarke (John M.) Geological Sur- 

 vey of the State of New York. Palaeontology. Vol. 

 VII. Text and plates, containing descriptions of the 

 Trilobites and other Crustacea of the Oriskany, Upper 



