POST-LARVAL TELEOSTEANS COLLECTED NEAR PLYMOUTH. Zot 
‘5 mm. are recorded in Table XX. Figs. 2 and 3 show in graphic form 
the length frequencies at each successive half-millimetre for two groups 
of hauls, the first group comprising XIV.—XIX., taken on May 25th 
and June 3rd, the second group comprising 16 hauls in which specimens 
occurred from Haul XX. to Haul XLV., taken between June 10th and 
29th. The first group (Fig. 2) shows a definite mode at 6-5 mm. and the 
Fie. 4.—Scomber scomber L. Length 6mm. May 25th, 1914. 
Fie. 5.—Scomber scomber L. Length 9mm. May 25th, 1914. 
Fic. 6.—Scomber scomber L. Length 11-5 mm. May 25th, 1914. 
4 
Fig. 7.—Scomber scomber L. Length 16 mm. ca. July 22nd, 1914. 
arithmetic mean is 7-15 mm. ‘The second group (Fig. 3) has two modes, 
one at 6-5 mm. and another at 9-5 mm., whilst the arithmetic mean is 
8-8 mm. It is probable that the mode at 9-5 in the second group (Fig. 3) 
is due to the group of fish found in the earlier hauls and represented in 
Fig. 2, which then showed a mode at 65mm. This would indicate a 
srowth of 3mm. in three weeks. If this interpretation be correct then 
the other mode in Fig. 3, that at 6-5 mm., would be most easily explained 
