PLATE IV. 



Fig. i. Siriella cequiremis n. sp. (continued). 



Fig. I a. Left gnathopod of an adult female, from below ; x 24. 



Fig. 1 b. Endopod of first thoracic leg of the same female ; x 24. 



Fig. 1 c. Second right male pleopod, from behind ; x. 24. 



Fig. ld. Pseudobranchia of the same pleopod, from behind; X 4§. 



Fig. ie. Fourth right pleopod of an adult male from Stat. 194 — 197, from behind; X 24. 



Fig. 1 ƒ . Distal part of the endopod of the pleopod shown in fig. ie, from behind; • 144. 



Fig- l g- Fourth right pleopod of an adult male from Stat. 35, from behind; X 26. The lateral setae of 



the endopod and all setae of the exopod omitted. 



Fig. 1/1. Distal part of the endopod of the pleopod shown in fig. i^-, from behind; X 95. 



Fig. 1 i. End of sixth abdominal segment vvith telson and left uropod of a female, from above ; X 24. 



Fig. 1 /'. Distal end of the female telson shown in fig. 1 i, from above ; X 70. 



Fig. il. Exopod of left uropod of an adult male, from above; ■ 24. 



Fig. 2. Siriella inornata n. sp. 



Fig. 2a. Anterior part of an adult male from Stat. $j ; ■ 14. 



Fig. 2Ö. Major part of right antenna of a male, from above; 24. 



Fig. 2c. Second right pleopod of a male, from behind; 24. 



Fig. 2d. Pseudobranchia of the pleopod shown in the preceding figure, from behind; 43. 



Fig. 2e. Fourth right pleopod of a male, from behind; • 24. 



Fig. 2 f. Distal part of the endopod of the pleopod shown in fig. 2e, from behind; 84. 



Fig. 2g. Distal part of the exopod of the pleopod shown in fig. 2e, from behind; X 84. 



Fig. 2 li. Distal part of the terminal spine of the exopod of the pleopod shown in fig. 2 e; X 336. 



Fig. 2z'. Exopod of left uropod of a male, from above; 24. 



Fig. 2k. Distal part of telson of a male, from above; 78. 



Fig. 3. Siriella media n. sp. 



Fig. 3<?. Major part of right antenna of a male from Stat. 37, from above; 24. 



Fig. $b. Major part of right antenna of a female from Stat. 2,/, from above; 24. 



Fig. 3c. Left gnathopod of a female, from below; 24. 



Fig. ld. Left first thoracic leg of the same female, from below; 24. 



Fig. 3^. Distal part of the endopod of fourth right male pleopod, from the outer side ; X 100. 



Fig. if. Distal part of the exopod of fourth right male pleopod, from behind; 100. 



Fig. 3 f. End of sixth abdominal segment with telson and left uropod of a female, from above; X 24. 



Fig. 3/;. Distal part of the female telson shown in fig. ^g, from above; • 72. 



Fig. 3/. Exopod of left uropod of a male, from above; X 24. 



Fig. 3/-. Distal part of telson of a male, from above; X 78. 



