BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 67 



Foerste (A. F.) The Clinton group of Ohio. 



In Bull. Deiiisou Univ., vol. 1, 1885, p. 6.3, 2 pis. 



Acidaspis. Bathyurus .?. Arionellu-i ?. Ilhtmuei daytonensix H. & W., /. 

 madisonianus Whitf., /. ambiguus n. sp. Calymene hlumenbachii ?. Lichas 

 hreinceps Hall. Dalmanifes werthneri u. sp. 



The Clinton group of Ohio. Part 2. 



lu Bull. Deunison Univ., vol. 2, 1887, p. 89, pi. 8. 



Ceraurus. Acida-spis ortoni n. sp. Proetus determinatus n. sp. IUcbuuh 

 draytoneiisis, I. madisoniann>i, I . amhigtius Foerste. Calymene vofjdesi n. sp. 

 Lichas breviceps Hall. Phacops pulchellus n. sp. Dalmanites werthneri 

 Foerste. Encrinurus thresheri n. sp. 



Note on Illseni. 



In Fifteenth Rept. Geol. Nat. Hist. Survey Minnesota, 1886, p. 478. 

 Illcemis (Hileus) minnesotensis n. sp., /. herricki n. sp., /. ambiguus 

 Foerste, /. insignis Hall. 



Note on Palaeozoic fossils. Part 2. 



In Bull. Denison Univ., vol. 3, pt. 2, 1888, p. 117, pi. 13. 



Microdiscus punctatus Salt. Lichas halli n. sp. Sphterexochus mirus 

 Beyr. Encrinurus bowningi n. sp., E. mitchelli n. sp. Phacops serratus 

 n. sp. Lichas trentonensis Conrad, breviceps Hall. 



Notes on Clinton group fossils, with special 



reference to collections from Indiana, Tennessee and 

 Georgia. 



In Proc. Boston Soc. Nat. Hist., vol. 24, 1889, p. 261. 



Calymene blumembachii var. vogdesi u. var., C. rosiraia Vogd. Illanus 

 ambiguus Foerste, /. ioxus |Hall. Phacops pidchellus Foei"Ste. Encrinurus 

 punctatus VVahl. Lichas boltoni var. occidentalis l Hall. Cyphaspis clintoni 

 n. sp. 



Forbes (Edward). Description of Aiiipyx nudiis. 



In Mem. Geol. Survey United Kingdom, decade 2, London, 1849, pi. 10. 



Ampyx nudus Murch., A. tumidus n. sp. Brachampyx n. g. 



The author makes the following remark: "If, in the end, all the five 

 ringed species should prove to have long heads, and those with 6 thoracic 

 segments to have short and rounded ones, the latter section may be con- 

 veniently distinguished from the former as a subgenus, under the name of 

 Brachampyx . 



The author erroneously included the type of the genus, Ampyx vasutua 

 Dalm., in his new subgenus; the term is misplaced and should be aban- 

 doned. 



