rionr^ivi dullliu 1 !. vul, o 1 *, n\j. c 



Figure 1.— Continued— Lophius gastrophysus larvae 

 from southern Brazil: E. 9.2 mm NL, 

 F. 14.9 mm NL. Scale bar is 1.0 mm. 



(Tarring 1923). Notochord flexion starts at about 9 

 mm NL (Fig. IE). 



As shown in L. piscatorius larvae (Taning 1923), 

 the laterally compressed larval form changes gradu- 

 ally during their planktonic stage toward the dorso- 

 ventrally depressed shape of juvenile and adults. The 

 largest larvae examined, 15.7 mm NL, had not yet 

 achieved the juvenile stage, but a similar tendency 

 was observed. For example, the maximal breadth 

 of the head in 3.5 mm larva is only 22%, but that 

 in 15.7 mm larva is about 40% of body length. The 



proportion of body depth also shows a similar 

 tendency, i.e., it starts at 30% at 4 mm and attains 

 45% of body length at 15.7 mm. The proportion of 

 head length starts at about 23% at 4.5 mm and at- 

 tains almost 45% at 15.7 mm NL. 



Statistics describing regressions of different body 

 parts in relation to body length are shown in Table 

 1. The regressions lines of head length and body 

 depth showed an inflexion at the size of 7.6 mm NL, 

 while those of other body parts were linear for the 

 size range 3.2-15.7 mm NL. Thus, the regressions 



432 



