DEVELOPMENT OF EUPHAUSIA SUPERB A 



29 



THIRD CALYPTOPIS 



The average lengths of varying numbers of individuals are stated in Table X. The 

 extreme range of size is between 3-17 and 4-83 mm. The range for the largest number 

 (fifty-eight) measured from one sample is between 3-50 and 4-58 mm. The lower limit 

 of length is almost i mm. less than that given by Ruud (1932, p. 48), but the upper limit 

 agrees closely with his. 



Fig. 6. Third Calyptopis. 



a, lateral aspect ( x 18); /, mandible ( x 165); 



b, dorsal aspect ( x 14); g, first maxilla ( x no); 



c, rostrum and antennules, flagella omitted ( x 35); /;, first thoracic limb with limbs II-VI in situ ( x 35); 



d, uropod ( X 46); J, thoracic limbs II-VI ( x 35). 



e, telson, ventral aspect ( x 35); 



The carapace is without lateral denticles (Fig. 6 a). In dorsal aspect (Fig. 6 b) it com- 

 pletely covers the compound eyes, which are globular in shape and show traces of pig- 



