f.ower Palcpozoic Crinotds of Bohemia. 1 1 1 



Vletavicn'mts is not the same as Bohemicocri'nus, even if 

 V, flaueri be not a syiKMiyin of 13. pulvereus itself. 



The last of the alleged new gei»era troin the blaek lime- 

 stone, e 1-2, is based on an ill-|>reservcd cup from Dvorce, 

 and is now called Zi^ukericrinus vtelocrinoides. It is the 

 Xenocriiiiis mentioned !)}■ name only on p. 41G of \)r. Jahn's 

 " Beitiai,'e zur Stratigra|)liie und Ti-ktonik der mittLdljohni- 

 iscla-n {Siliuforniation " *. 'riic authors reter it to the ^felo- 

 crinida% to which fan)ily, even in its latest and most restricted 

 sense, it certainly lioloii|^s. They say that " it is nearest to 

 Melocn'nNSj from which, however, it difters in many essential 

 teaturcs." This opinion also is well founded ; but the authors 

 eeem unaware that the genus Mariacrinua, Hall, is distin- 

 guished trom Melocn'ttus by those same features. There is 

 nothing to prevent the relegation of the present specimen to 

 Mariacn'nus. 



Fijr. 't. — Cnleidocrinus muliiramu^. I'mximal portiou?* of stem and 

 crown, seen from alle-red ri^'ht posterior radius; the supple- 

 nientftry platt-s nf the alleged {.osterior intt-rradius are in two 

 vertical rows, tho-^e of the other are in a hhvAt' row. This is 

 tig. '26 a of Waairen and Jahn, an<l is said to be '* ^.Tossi '' ; but 

 not ft sin^'le uieasurcnient is {^iveii ihruu^rhuut the account of 

 this genus. The block has been kindly lent by Dr. Anton 

 Fritsch, on belialf of the Barrande Committee. 



In the second fauna the only representative of the Crinoidea 

 i.s a new genus, Caleulocrinns, based on impressions in the 

 "schistts de grauwacke," d4, of Hiij Hill, near Zahoi-an. 



• Jahrb. d. k. k. geol. Reichsanst. Wien, xlii. pp. 397-4C2, Feb. 1893 

 [^not 1802). 



