Forklaring over Figurerné. 



Tab. I, Fig. 1. Bathycrinus Carpenteri i naturlig Størrelse. 



a. Led paa den nederste Trediedel af Stil- 

 ken. 6. En af Hovedrødderne. c. En 

 Rodgrens yderste, haarfine Ende. 



— 2. Et ungt Exemplar af Bathycrinus Carpen- 



teri, forstørret. 



a. Ringene paa Stilkens øverste Led. b.. 

 Korte, cirkelrunde Led. r. LæDgere, cirkel- 

 runde Led ved Enden af den øverste Tre- 

 diedel. cl. Leddene paa Stilkens midterste 

 Del. e. Leddene paa Stilkens nederste 

 Del. /. Midtpartiet af et Led. der hen- 

 tyder paa, at Leddet har været delt. g. 

 Leddets elliptiske Del. h. Basalerne med 

 deres Sidesømme. i. Iste Radiale. /,-. Led- 

 det imellera Iste og 2det Radiale. 



— 3. En Stilk uden Krone, forstørret. 



a. Ringene paa Stilkens øverste Led. I>. 

 Korte, cirkelrunde Led. c. Længere, cirkel- 

 runde Led ved Enden af den øverste Tre- 

 diedel. cl. Leddene paa Stilkens midterste 

 Del. e. Leddene paa den nederste Tre- 

 diedel. /. Leddeflade. g. Leddets ellip- 

 tiske Del. h. Midtpartiet af et Led. i. 

 Det egentlige Rodled. /,'. Den nederste 

 Ende af en Rodgren, hvor Leddene ere 

 ubevægelige. /. De sammen voxede Basaler. 

 in. Basalernes pentagonale Flade. 



— 4. En Leddeflade af et Led paa den øverste 



Trediedel af Stilken, forstørret. 



a. Kalkkammen. h. Aabning for Central 



kanalen, c. Sidefordybning for Muskelin- 



sertioner. 



— 5. En Leddeflade af et Led paa midterste 



Trediedel af Stilken, forstørret. 



a. Sidefordybning for Muskelinsertion. h. 



Kalkkam. 



— 6. En Leddeflade af et Led paa den nederste 



Trediedel af Stilken, forstørret. 



Explanation of the Plates. 



Pl. I, Fig. 1. Bathycrinus Carpenteri in life size. 



a. Joint on the lowest third part of the 

 stalk. b. One of the chief roots. c. The 

 outennost hair-fine extremity of a root- 

 branch. 



— 2. A young specimen of Bathycrinus Carpen- 



teri. magnified. 



a. The rings on the uppenuost joint of the 

 stalk. h. Short circular joint. c. Long 

 circular joint at the extremity of the up- 

 permost third part. d. The joints on the 

 middle portion of the stalk. <■. The joints 

 on the lowest portion of the stalk. f. The 

 middle portion of a joint, indicating a 

 previous division of the joint. g. The el- 

 liptical portion of the joint. h. The basals 

 with their lateral seams. ?'. Ist radial. 

 A'. The joint between the Ist and 2nd radials. 



— 3. A stalk without crown, magnified. 



a. The rings on the uppermost joint of 

 the stalk. I>. Short circular joint. c. Longer 

 circular joint at the extremity of the up- 

 permost third part, d. The joints on the 

 middle portion of the stalk. e. The joints 

 on the lowest third part. /. Articular 

 surfaces. g. The elliptical portion of the 

 joint. //. The middle portion of a joint. 

 i. The real root-joint. /.•. The lowest ex- 

 tremity of a root-joint. where the joints 

 are non-fiexible. I. The concreted basals. 

 in. The pentagonal surface of the basals. 



— 4. Articular surface of a joint on the upper- 



most third part of the stalk, magnified. 

 n. The calcareous ridge. b. The aperture 

 of the central canal. c. The lateral cavity 

 for the insertions of muscles. 

 Articular surface of a joint on the middle 

 third part of the stalk, magnified. 

 a. Lateral cavity for insertion of muscles. 

 li. Calcareous ridge. 

 6. Articular surface of a joint on the lowest 

 third part of the stalk, magnified. 



— o 



