The Crixoeds from Dr. S. Bock's Expedition to Japax 1014. laT 



(;{ + 4| I ease: 19— 2S mm. 1\' Hr-s l;H.') + ()) 1 case. 17(:{ + 4 or 

 :i + 4. 12 + i;{j 2 cases, 18 (:{ + 4, 14 + 15) I case, 19 (8 + 4 or :! + 4. 

 9 +10. 15 + 16) 2 cases, 20 (3 + 4. 9 + 10 or :{ + 4, 15+ 10 or :{ + 4, 

 IG + 17 or ;i + 4. 17 + 18) 4 cases, 22 (:{ + 4. 19 + 20 or li + 4, 20 + 21) 

 2 cases. 24 (:{ + 4. 17 + IS) 1 ease, 25 (:5 + 4. 12 + 1:}. 20 + 21) 1 case, 

 20 (;] + 4. 22 + 2:]) 1 case, 28 or 29 (1 2 (:}) + 4 5 + 7 8 . .) 1 case (the 

 ;^' segment riidimeiitaiy): 1 7 :i2 mm. Arms L\'I, total L 175 mm., 

 a regenerated part only 140 mm. Tiie undivided part of the arm 

 75 — 110 mm. Kxamplc of the decrease in the number of pinnulars: 

 13, 10. 10, 8, 7. 5. 4. 4. 3. :{. . . (7—1,5 mm.). 



Pi (to the riglu im 1 iir 2' in 4 cases of 5) 22—24: l\ (on 11 

 Br 5) 15: 15 nun. 1',;^, '7: 12 mm. 



.S/). 4 (St. 32) 28 intcrn(Kles, 400 mm. 3 nodal joints without 

 cirri. Full number of internodals at the 6"' internode. Internodal joints 

 11:14 cases, 12 : 8 cases, 14 : 1 case; 14 — 17 mm. (distally the shortest 

 indernodes). Intciaitictihu' pores to tiie 9"' internode. Diameter of 

 the stem 0,7— 0,u mm.! (Thus a more slender stem proximally. vSiight, 

 incomplete ridges on the internodals.) 



Cirri 45 (Vll), 44 (XIl). 43 (XV), 45 (XXV): 40-49 mm. Extending 

 over 2' 2 — 3 internodes. 



B-s 2X0 mm, K-s 2x7 nun. I Br-s 7 (1 + 2. 4 + 5: 4 cases: 

 1+2. 3 + 4:1 case) 5 cases; 18—19 mm. II Br-s : 1 case, 7 (3 + 4; 

 1 case 4 + 5) 9 cases; 13—15 mm. Ill Br-s 11 (5+0) 1 case, 13 

 (3 + 4: 1 ease 5 + 0) 9 cases, 15(3 + 4) 5 cases, 17(3 + 4:2 cases, 



1 + 2, 4 + 5. 14+15: 1 case) 3 cases, 19 (3 + 4) 1 case, 20 (3 + 4, 

 17+18) 1 case; 19—20 mm. IV Br-s 18(3 + 4, 7 + 8) 1 ease, 19 

 (3 + 4, 7 + 8, 15 + 10 or 5 + 0) 2 cases, 20 (3 + 4 or 3 + 4, 10+17) 



2 cases. 22(3 + 4. 9+10 or 5 + 0, 18+19) 2 cases, 24 (0 + 7) 1 

 case, 30 (3 + 4, 18+ 19) 1 case; 19—25 mm. Arms XLIX, total L 185 

 mm. Free arm-length 90 — 120 mm. A lot of new regenerated arms. 

 E\ of sy/.ygies: 3 + 4. 23 + 24 . . . 



P, (to the i-ight on I Br 2 in 3 cases of 5) 18—19: 24 mm. P., 

 17: Pj 18; P,-, 18: 15 mm. 



One radial tiranch siiows an irregular pinnulalion: 



