THE SPINE MODE OF CENTROPYXIS ACULEATA. 169 
(1) 29th March, 1917. 
No. of spines Dr 3) e448 O80 Oho nis 
Frequency 413 321914 9 5 4 
Total frequency 100 Mode 3 
(m) 2nd May, 1917. 
No. of spines fe ids 4 PGE 7 48 
Frequency ay Sas) ike) Il 2h al i 
Total frequency 100 Mode 3 
(xn) 31st May, 1917. 
Species too scarce for tabulation. 
(o) 28th June, 1917. 
Species too scarce for tabulation. 
(p) 1st August, 1917. 
Species too scarce for tabulation. 
(q) 31st August, 1917. 
No. of spines Lie 3S Aoi } Tid 
Frequency 17 3033342 a Lt 1 
Total frequency 151 Mode 2-4 
(vr) 28th September, 1917. 
No. of spines L225 4s 6" 7 
Frequency 1. 8 24 10 55 1. 1 
Total frequency 50 Mode 3 
(s) 2nd November, 1917, 
No. of spines 1 2) 394 67S ae 
Frequency 4 12°38° 2216556 1 t 
Total frequency 100 Mode 3 
(t) 30th November, 1917. 
No. of spines D2 ARES 657 
Frequency inte Nerd Toya! tS) 1 Sle aa 
Total frequency 50 Mode 3 
(uw) 29th December, 1917. 
No. of spines 1 295) Ao. 26 
Hrequency d 12.20 8 Ses 
Total frequency 50 Mode 3 
