1881.] NATURAL SCIENCES OF PHILADELPHIA. 255 



1867. Hexacr. nodifer Schultze. Mon. Ecbin. Eifel Kalk, p. 84, PI. 10, fig. 3. 



I)evonian. Eifel, Germany. 

 1838. Hexacr. ornatus Goldf. (Platycr. ornatus not McCoy.) Nova Acta Ac. 



Leop., xix, i, p. 347; Schultze, 1867, Hexacr. ornatus, Mon. Echin. Eifel 



Kalk, p. 82, PL 8, fig. 4, and PI. 10, fig. 9. Devonian. Eifel, Germany. 

 Si/n. Hexacr. echinatus Sandberger, 1856. Verstein. Nassau's, p. 398, PI. 35, 



fig. 10. 

 1867. Hexacr. paterseformis Schultze. Mon. Echin. Eifel Kalk, p. 87, PL 10, fig. 



4. Devonian. Eifel, Germany. 

 1867. Hexacr. pyriformis Schultze. Mon. Echin. Eifel Kalk, p. 76, PL 10, fig. 1. 



Devonian. Eifel, Germany. 

 1857. Hexacr. spinosus MuUer. Neue Echin. Eifel, p. 248, PI. i, figs. 13, 14; 



Schultze, 1867, Mon. Echin. Eifel Kalk, p. 75, PL 8, fig. 2. Devonian. 



Eifel, Germany. 

 1851. Hexacr. stellaris F. Roemer. (Platycr. stellaris.) Yerh. Naturh. Verein f. 



FiheinL, viii, p. 362, PL 7, figs. 2 a, b, c ; Schultze, 1867, Hexacr. Stellaris, 



Mon. Echin. Eifel Kalk, p. 81, PL 8, fig. 3. Devonian. Eifel, Germany. 

 1867. Hexacr. triradiatus Schultze. Mon. Echin. Eifel Kalk, p. 86, PL 9, fig. 5. 



Devonian. Eifel, Germany. 

 1826. Hexacr. ventricosus Goldf. (Platycr. ventricosus.) Petref. Germ., i, p. 189, 



PL 58, fig. 4; Miiller, 1856, Monatsb. Berl. Akad., p. 354, and 1857, Xeue 



Echin. Eifl., p. 247, PL 1, figs. 3, 4; Schultze, 1867, Hexacr. ventricosus, 



Mon. Echin. Eifel Kalk, p. 85, PL 10, fig. 2. Devonian. Eifel, Germany. 



8. DICHOCRINUS Munster. 



1838. Munster. Beitr. zur Petrefactenk, , i, p. 2. 



1843. Austin. Mon. Rec. and Foss. Crin., p. 45. 



1850. D Orbigny. Prodr. de Paleont., i, p. 156. 



1853. Owen and Shuniard. U. S. Geol. Rep. Iowa, Wis. and Minn., p. 589. 



1853. De Koninck and Lebon. Rech. Crin. Carb. Belg., p. 146. 



1857. Pictet. Traite de Paleont., iv, p. 333. 



1858. Hall. Geol. Rep. Iowa, i, pt. ii, p. 654 (not 689). 



1860. Meek and Worthen. Proc. Acad. Nat. Sci. Phila., p. 381. 

 1860. Hall. Supp. Geol. Rep. Iowa, p. 83. 



1860. Casseday and Lyon (in part). Proc. Acad. Arts and Sci., v, p. 16. 

 1866. Meek and Wortben. Geol. Rep. 111., ii, pp. 167 and 263. 

 1879. Zittel. Haudb. der Palaeont., p. 365 (not Sbumard, 1857, Trans. 

 St. Louis Acad., i, p. 5). 

 Syn. (?) Cofyledonocrinus Cass, and Lyon. 1860, Proc. Am. Acad. 



Arts and Sci., v, p. 16. 

 Syn. Platycrinus Phillips (in part). Geol. of Yorkshire, ii. 



There has been some difference of opinion as to the number of 

 primar}^ raclials in Dichocrinus. Austin represents his Dichocr. 

 fusiformis, Rec. and Foss. Crin., PI. 5, fig. 6", with three small 

 plates above the first radials ; De Koninck and Lehon, in their 

 generic formula, fix the number of primary radials at 4 X 5, on 



