The Ceinoids from Dr. S. Bock's Kxpedition to Japan KM 4. 105 



Pj (in 5 eases to the right on 1 Br 2) 14: 12 mm. (l"^ segment 

 short, 2*^ one largest), Pg 14; 10 mm., P.^ 13; 8 mm. Brachial p— s 10; 

 6 mm. Disk coarsely granulated, 11,5 mm. 



Sp. 2 (St. 45) The medium h of the internodals 1,3 — 1,45 mm. 



4 nodal joints without cirri. Full number of internodals in the 5"' in- 

 ternode. Internodal joints with rather prominent interradial swellings, 

 which disappear in the 8*'' internode, and low ring-ridges on the sharply 

 pentagonal stem. Interartieular pores to the 7"' internode. Cirri 37; 

 32 mm. 



I Br— s 7(1 + 2, 4 + 5) 5 cases; 10 nun. 11 Br— s 9 (3 + 4) 1 

 case, 10: 1 case, 11 (3 + 4) 8 cases; 11 mm. Ill Br— s 11 (3 + 4) 1 

 case, 12: 1 case, 13(3 + 4) 7 cases, 15(3 + 4) 1 case, 19(3 + 4) 3 

 cases, 20(4 + 5, 13 + 14) 1 case, 21 (3 + 4: 2 cases, 4 + 5: 1 case, 



5 + 6: 1 case) 4 cases, 23 (3 + 4) 1 case, 24 (3 + 4, 19 + 20) 1 case; 

 12 — 17 mm. Arms. XL, total L 100 mm. Undivided part of the arm 

 60 mm.; 20 mm. with rudimentary p — s. 



Pi (to the right on 1 Br 2 in 5 cases) 17; P.^ and P3 17; P5 14. 

 Br — p. 14: 9 mm. One pinnule swollen by an entoparasitic Myzosloma. 



Sp. 3 (St. 45) 5 nodals without cirri. Full number of internodal 



joints in the 3*^ internode. The segments tolerably smooth. The syzy- 



gial face of the nodal rounded. Interartieular pores to the 7"' internode. 



Cirri 35 (IV) 28 mm., 36 (VII) 32 mm., 35 (IX) 29 mm. 8"'— IP" 



segments the longest L= I72 br. 



B-s 1 X 1,5 mm., R— s 1,8X2,5 mm. I Br— s 7 (1 + 2, 4 + 5) 



5 cases; 10 mm. II Br— s 9 (3 + 4) 7 cases, 11 (3 + 4) 3 cases; 10— 

 12 mm. Ill Br— s 11 (3 + 4) 2 cases, 13 (3 + 4) 8 cases, 15 (3+4) 2 

 cases, 17 (3 + 4) 3 cases, 18 (3 + 4, the outer arm more weakly deve- 

 loped) 1 case, 19 (3 + 4) 3 cases, 20 (3 + 4, the new arm bending out- 

 wards on the outer side) 1 case; 10 — 15 mm. IV Br — s 15 (3 + 4) 3 

 cases, 17(8 + 9) 1 case; 12—13 mm. Ai-ms XLI\', total L 95 mm. 

 Unbranched arm 55 mm. Part of the arm with rudimentary p — s 

 20—22 mm. 



Pj (to the i-ight on 1 Br 2 in 4 cases) 11; 9 mm. Br — p 10; 



6 mm. 



In the same pot also 2 stem-fragments, one with 4 iiiternodes. 

 11 internodals, L of the iiiternodes 14 mm; diameter of the stem 

 3 mm. Cirri 36; 32 nun; the other with 6 internodes, 11 — 13 interno- 



