199 



figure 



3 d. Head of female seen from in front, X 66. 



3 e. Head of another female seen from below, X 117. 



3 f. Male seen from below, X 81. 



3 g. Another male seen from left side, X 81. 



3 h. Distal part of a maxilliped of male, X 296. 



3 i. Adult larva seen from below, X 154. The sets of two of the natatory legs omitted. 



3 k. Another similar larva seen from left side. A part of the olfactory seta, the greater part of 



the long caudal seta and most of the seta? of the natatory legs omitted. 



3 1. Frontal decoration of larva, X 308. 



3 m. Antenna? of larva seen from below, ab. X 250. 



3 n. Right maxilla of larva seen from below, X 312. 



3 o. The two proximal joints of left maxilla of larva seen in an oblique direction. 



PLATE IX. 



1. Sphaeronella decorata n. sp. (continued). 

 1 a. Genital area of female, X 94. 



1 b. Left maxilla of female seen from below, X 323. 



2. Sphaeronella modesta n. sp. 



2 a. Female, X 23. 

 2 b. Male, X 23. 



2 c. Ovisacs — some containing eggs, others young ones — , X 23. 



2d. Head of female, X 230; x. peculiar area. 



2 e. Genital area of female, X 180. 



2 f. Male seen from below, X 138. 



2 g. Frontal border and one antennula of the same male, X 264. 



2 h. Another male seen from left side, X 138. 



2 i. Anterior part of larva, X 294. 



3. SphaBronella dispar n. sp. 



3 a. Small adult female, X 37. 

 3 b. Male, X 37. 



3 c. Ovisacs laid by the female shown in fig. 3 a, X 37. 



3 d. Large adult female, X 37. 



3 e. Ovisacs laid by the female shown in fig. 3 d, X 37. 



3 f. Head of female, X 185. Of the antennula on the right side of the figure only the base 



is indicated. 

 3 g. Genital area of female, X 243. 

 3 b. Male seen from below, X 202; i. first process of the sub-median skeleton, j. second process 



of the same, y. lateral keel behind the peculiar frontal plate. 

 3 i. Another male seen frqm left side, X 219. 

 3 k. Larva, X 275. The seta? of two of the natatory legs omitted. 



