PLATE IV. 



Fig. ïOc. Hallporus Sibogae de Man, the carapace of the male, long 155 mm., from Stat. 74, with the 

 various appendages, viewed from the lovver side, X i 1 ^; lOflf anterior part of the carapace of 

 another female from Stat. 74, X 2; 10^ caudal fan of an adult male from Stat. 74, >< i'/si 

 \of and \og anterior part of the carapace of two males, long 125 mm., from Stat. 74, >( 2; 

 \oh sternum of an adult male from Stat. 38, long 150 mm., X 3; x left leg of the third pair; 

 10/ petasma of an adult male, from Stat. 38, looked at from behind, ■ 3; 107' thelycum of 

 an adult female, long 145 mm., from Stat. 74, where the thelycum appears faintly carinate in 

 the middle line, 3; 10/c thelycum of an adult female, long 155 mm., from Stat. 38, in which 

 it appears rhomboid, the two anterior sides making a right angle with one another and 

 separated by grooves from the rest of the sternum, 3; 10/ left mandibular palpus of an 

 adult male, long 150 mm., viewed from the outer side, x 4; iom left maxilliped of the first 

 pair of the same male, • 3; io« maxilliped of the second pair of the same male, X 3, z the 

 podobranch ; 100 terminal joint of this maxilliped, ■ 5; \op maxilliped of the third pair of 

 the same male, long 150 mm., from Stat. 38, • 2; \oq the two last joints of the outer footjaw 

 of an adult female, long 155 mm., from Stat. 38, X 2. 



Fig. n. Solenocera pectinata (Sp. Bate), distal spiniferous part of the petasma of the male from Stat. 204, 

 looked at from behind, •; 25. 



