The Crinoids froae Dr. S. Bock's Rxpedition to Jai'ax |!I|4. KiT 



total L. I'M) mm. L'nbranehetl arms 100 mm.. 30-40 mm. willi iiuii- 

 nentary p — s. 



1', (to the riu-lit (ni 1 \h- 2 in 4 cases) li); man>- p — s with encys- 

 ted Myzostonias. 



Sp. G (St. 4-')) 4 iiodals without cinl l''ull nunilicr o| intcniodal 

 joints in the 5"' internode. Interarticular pores to the 0"' internodc. 

 Stem somewhat more rounded and smoother Ihan in (he preceding 

 specimens. 



Cirri 43 (X) 37 mm., 44 (XII) 40 mm., 42 (X\) 3S mm. First 

 cirrals short, L = Va br. 



I Br-s 5 (1 + 2, 4 + 5) 1 ease, 7 (1+2, 4 + 5) 4 eases; 9—11 

 mm. II Br-s 9 (3 + 4) 5 cases, 11 (3 + 4) 5 cases; + 10 mm. Ill and 

 I\' Br-s bent down, impossible to count. Arms XLIV, total L 110 mm. 

 Unbranched part of the arms 80 mm. 



P^ (to the right on I Br 2 in 4 cases) 14—17; 12—13 mm. 

 P.2 10—19; P., Iti; 10 mm. Br-p. 13; 7 mm. Disk 10-12 mm. Anal 

 tubus 4 mm. 



Sp. 7 (St, 45) 6 nodal joints without cirri. Full number of inter- 

 nodals in the 4*'' internode. Average height of internodal joints 1,3 — 1,5 

 mm. A slight intercirral tubercle to about the XV*'' node. The distal 

 face of the nodal joint lobated. Ring-ridge inconspicuous. Interarti- 

 cular pores to the 8* internode. 



Cirri 41 (VI) 35 mm., 42 (IX) 37 mm., 41 (Xl| 34 mm.. 41 (XI\ | 

 3() mm., 39 (XVII) 35 mm., 40 (XIX) 34 mm. 



B — s 1,3 X 2 mm, contiguous. R — s 2X4 mm. I Br-s 7(1+2, 

 4 + 5) 5 cases; 12 mm. II Br-s 11 (3 + 4) 10 cases; 14 mm. Ill Br-s 

 11 (3 + 4) 3 cases, 13 (3 + 4) 3 cases, 15 (3 + 4) 4 cases, 17 ( 3 + 4J 

 3 eases, 19 (3 + 4) 5 cases, 21 (3+4) 2 cases; 11-19 mm. IV Br-s 

 13 : 1 case, 15 : 2 cases, 17 : 1 case, 21 : 1 case, all with a syzygy 

 between 3 + 4; 12 — 14 mm. Arms XLV, total L 115 mm. Unbranched 

 part of the arm 75 nun.. Syzygies with an interval of 17 — 25 oblique 

 articulations. 



P, (to the right on I Br 2 in 4 cases) 16; 14 mm. Br-p. 13; 

 7 mm. 



Sp. 8 (St. 45) 3 nodals without cirri. Full number of interno- 

 dals in the 5"' internode. Interarticular pores to the 9"' internode. 

 Intranodal joint rounded. The segments are remai'Uably smooth and 

 I'ounded. 



