205 



Figure 



5 c. Head of female, X 204. Antennulae, one maxilliped and the distal part of the antenna? are 

 broken off; the hairs almost totally omitted on the right half of the figure. 



5 d. Genital area of female, X 202. 



6. Sphseronella marginata n. sp. 



6 a. Female, X 41. 

 6 b. Male, X 41. 



6 c. Ovisac, X 41. 



6 d. Head of female, X 190; a. antennula, f. rudimentary maxilla. 



6 e. Genital area of female, X 280. Only one of the caudal stylets is found. The receptacula 



seminis indicated by dotted lines. 

 6 f. Male seen from below, X 190- The trunk misshaped by pressure. 

 6 g. Cephalothorax of a full-grown larva, X 273. The natatory legs and most of the olfactory 



seta on the right side of the figure omitted. 

 6 h. The two distal joints of a maxilla of the larva, X 273. 



