NiCKLES AND BASSLEU.] CATALOGUE OF GENKRA AND SPECIES. 169 



Archimedes wortheni (Hall) — Continued. 



1881. Retepora Archimedes. Quenstedt, Roehren- und Sternkorallcn, p. 174, 



pi. cl. 4-10. 



1857. Fenestella (Archimedes) AVortheni. Hall, Proc. Ainericau Assoc. Adv. 



Sci.,X, p. 178. 



1858. Archimedes Wortheni. Hall, Pal. Iowa, p. 651, pi. xxii, 3, 4a, /_>, 5o, h. 



1889. Archimedes wortheni. Miller, North American (Jeol. Pal., fig 452 (p. 292) . 



1890. Archimedes wortheni. Ulrich, Geol. Surv. Illinois, VIII, p. 571, pi. Ixiii, 



8, Sa. 



1894. Archimedes wortheni. Keyes, Missouri Geol. Surv., V, p. 2G, pi. xxxiii, 1. 



1896. Archhnedes Wortheni. Ulrich, Zittel's Textb. Pal. (Engl, ed.), fig. 4(58 



(p. 282). 



1897. Archimedes Wortheni. Simpson, Fourteenth Ann. Rep. State Geologist 



New York for the year 1894, figs. 71, 72 (p. 519). 

 1858. Archimedes reversa. Hall, Pal. Iowa, p. 652, pi. xxii, 2. 

 1889. Archimedes reversus. Miller, North American Geol. Pal., iig. 451 (p. 292). 

 Warsaw: Warsaw, Illinois. 



Arehimedipora D'Orbign}". See Archimedes Owen. 

 Aivhiniedipora Simpson (not D'Orbio-ny). 



1895. Archimediopora. Simpscjn, Thirteenth Ann. Rep. State Geologist New 



York for the year 1893, pp. 701, 723, 726; Forty-seventh Ann. Rep. 

 New York State Mus., pp. 895, 917, 920. 

 1897. Archimediiiora. Simp.son, Fourteenth Ann. Rep. State Geologist New 

 York for the year 1894, p. 522. 

 Obs. This genus as defined by Mr. Simpson is imaginary. The author 

 cites no species. We know of no species of Archimedes with more 

 than two rows of apertures on a branch. 



ARTHROCLEMA Billings. Genotype: Arthroclemapulchelhim Billings. 



1862. Arthroclema. Billings, Pal. Foss., I, p. 54. 



1882. Arthroclema (in part). Ulrich, Jour. Cincinnati Soc. Nat. Hist., V, p. 151. 

 1886. Arthroclema. Ulrich, Fourteenth Ann. Rep. Geol. Nat. Hist. Surv. Minne- 

 sota, Y). 60. 



1888. Arthroclema. Ulrich, American Geologist, I, p. 232. 



1889. Arthroclema. Miller, North American Geol. Pal., p. 293. 



1890. Arthroclema. Ulrich, Jour. Cincinnati Soc. Nat. Hist., XII, p. 192. 

 1890. Arthroclema. Ulrich, Geol. Surv. Illinois, VIII, p. 400. 



1893. Arthroclema. Ulrich, Geol. Minn. , III, p. 197. 



1896. Arthroclema. Ulrich, Zittel's Textb. Pal. (Engl. ed. ), p. 281. 



1897. Arthroclema. Simpson, Fourteenth Ann. Rep. State Geologist, New York, 



for the year 1894, p. 546. 



Arthroclema angulare Ulrich. 



1889. Arthroclema angulare. Ulrich, Contr. Micro- Pal. Cambro-Sil., Part II, p. 45. 



1890. Arthroclema angulare. Ulrich, Geol. Surv. Illinois, VIII, p. 641, pi. xxix, 



6-6b. 

 1895. Arthroclema angulare. Whiteaves, Pal. Foss., Ill, p. 117. 



Cincinnati (Riclimond) : Wilmington, Illinois; Stony Mountain, Manil()l)a. 

 Obs. See Helopora imbricata Ulrich. 



Arthroclema armatum Ulrich. 



1890. Arthroclema armatum. Ulrich, Jour. Cincinnati Soc. Nat. Hist., XT I, 

 p. 194, fig. 19«-(/ (not e-/(= Arthroclema iiulchellum Billings). 



1893. Arthroclema armatum. Ulrich, Geol. Minnesota, HI, p. 201, pi. ii, S-1 1, 25, 

 28-33, pi. iii, 7. 



