18 UINTACRIXUS: ITS STRUCTURE AND RELATIONS. 



TABLE A. 



Distribution of Syzygies. 



Specimen No. 78 a. 25 mm. 



Specimen No. 3. 39 ram. 



I. 9 14 20 24 



II. 9 16 19 24 28 



III. 9 15 18 23 28 33 38 44 49 



IV. 9 16 19 24 28 33 38 45 49 



Specimen No. 182. 51 mm. 

 46 



Specimen No. 179. 53 mm. 



L 9 13 17 21 25 29 33 37 41 45 49 53 57 



IL 9 13 17 21 25 29 33 37 41 45 49 53 57 61 65 



III. 9 13 17 21 25 29 33 36 40 44 48 52 56 60 65 69 



IV. 9 13 16 22 27 32 37 41 45 49 53 57 62 66 70 



Specimen No. 173. 56 mm. 



Specimen No. 186. 62 mm. 



I. 10 14 19 24 30 36 — none for 12 remaining brncliials. 



IL 10 14 18 23 30 



III. 10 13 17 22 27 



IV. 11 23 (broken) 40 — 61 — 86 92 99 108 117 127 136 149 



