272 DISCOVERY REPORTS 



segments without limbs, the second to eighth, can be recognized as narrow encircUng 

 folds of the integument. 



The abdomen is of six segments and slightly longer than the carapace. The telson 

 has seven terminal spines (Fig. 37 b). 



Fig. 37. E. vallentim. a, second Calyptopis from the side, x 47. b, second Calyptopis, telson from above, 

 X 107. c, third Calyptopis from the side, x 30. d, Furcilia, stage I, frontal plate and antennules, x 57. 

 e, Furcilia, stage II from the side, x 20. /, Furcilia, stage II, carapace and antennules from above, x 30. 



Third Calyptopis (Fig. 37 c) 

 Description based on the examination of thirty-two specimens, 2-5-2-8 mm. long. 

 The carapace is similar to that of the third Calyptopis of E.frigida except that there is 

 invariably a small but distinct dorsal organ present. 



