144 CLASS IV. 



Genera: Caryocrinites SAY, Platycrinites MILL., Actinocrinites 

 MILL., Ehodocrinites MILL., Cyatlwcrinites MILL., Poteriocrinites 

 MILL., Melocrinites GOLDP. 



For these fossil genera and others unnoticed we must for want 

 of space refer to MILLER'S work already cited, to GOLDFUSS die 

 Petrefacten Deutchlands, and other geological works. Comp. also 

 GOLDFUSS Ueber fossile Crinoideen, Nov. Act. Acad. Goes. Nat. 

 Curios. XIX. I. 1839, p. 329352, and L. v. BUCK on Caryocrinus 

 ornatus in his work Ueber Cystideen, Berlin, 1845, 4to. 



In these and the following pediculate Crinoids, the cup-like part 

 at the extremity of the stem and base of the arms is named Calyx. 

 The bottom of this part, which is pentangular, and composed of five, 

 four, or sometimes three plates, is named by MILLER pelvis ; JOH. 

 MUELLER names the plates basalia; at the margin of these plates 

 are the basal-pieces of the arms, forming the uppermost part of the 

 calyx; there are two or three rows, and the uppermost bears the 

 arms. MILLER gives to this part the name of scapula; the two 

 pieces situated below are costce. JOH. MUELLER names these pieces 

 radialia (radiale primum, r. secundum and r. axillare; his radiale 

 axillare is the scapula of the English author). In those now 

 named Crino'idea tesselata these parts are joined together without 

 articulation. The fossil species of this division are found in the 

 transition-limestone and the grey-wacke. 



** Articulata. The rays free directly from the pelvis of the 

 calyx, the first radial conjoined to the second, and the second 

 to the third by articulation. 



Apiocrinites MILL. Column incrassated towards the calyx, 

 pyriform. 



Sp. Apiocrinites rotundus MILL. Tab. I vn. Apiocrin. ParTcinsonii BRONN, 

 Letfuza Tab. xvn. fig. 15, (MILLER'S figure) fossil from the oolite forma- 

 tion, like other species of this genus. 



Encrinus GUETTARD (in part). Column round, not incrassated 

 towards the top. 



Sp. Encrimis liliiformis LAM., Encrinites moniliformis MILLER, pp. 37 44,- 

 Tab. i in. ; ELLIS Corall. Tab. 37, fig. K, &c. One of the most character- 

 istic fossils of the Muschelkalk. The head, on account of the numerous 

 articulations of the arms that lie side by side, resembles an ear of Turkish 

 wheat (Zea Mays) ; the joints of the stem, sometimes found in incredible 

 numbers, changed into calcareous spar, are named Trochites 1 . 



1 QUENSTEDT (Ueber die EnTcriniten des Muschelkalks, WIEGMANN'S Archiv. 1835, TI - 

 s. 223228, Taf. IV.) describes a species with different division of the arms, under the 



