PLATE II. 



Fig. T,h. Gennadas clavicarpus de Man, left-half of the petasma of the third male, on which one observes, 

 instead of the large, rounded lobe of the distal border, a triangular, pointed process, the 

 acuminate tip of which is curved foreward : posterior surface, X 25; 3/ thelycum of the type 

 specimen, the adult female from Stat. 128, a 17; 3/(' thelycum of one of the four young females 

 from Stat. 230, long 18 mm., v 25. 



Fig. 4« — -c. Hemipenaeus crassipes (W.-Mas.), legs of the first pair (4rt), of the second pair (41J) and of the 

 third pair (4c) of the female from Stat. 85, X i '/2- 



Fig. 5. Hemipenaeus Sibogae de Man, adult female, type, from Stat. 52, X I'/s; 5« leg of the first pair, 

 5/; leg of the second pair, 5^ leg of the third pair of this female; X I'/a- 



Remarks: The measurements of the legs of the first and of the second pair of the females both 

 of Hemip. crassipes (W.-Mas.) and Hemip. Sibogae de Man are indicated in the following table, because 

 •in the description of Hemip. Sibogae (p. 25) not only the carpi but also the chelae of these legs are said 

 to be shorter and less slender than those of Hemip. crassipes, which, as regards the chelae, is not the 

 case in these legs : 



Hemip. crassipes Hemip. Sibogae 



Length of the merus 



Width of the merus in the middle .... 



Length of the carpus 



Width of the carpus at the distal extremity 

 Length of the chela 



( of the legs of the first pair | 



Width of the palm in the middle 



Length of the merus 



Width of the merus in the middle . . . . 



Length of the carpus 



Width of the carpus at the distal extremity 



Length of the chela 



Width of the palm in the middle . . . . 



of the legs of the second pair 



Fig. 6. Aristens virilis (Sp. Bate), carapace with the legs etc. of a young male, long 118 mm., from 



Stat. 38, X 2; 6rt leg of the third pair of the female from Stat. 262, X I'V 

 Fig. 7. Aristens scmidentatus (Sp. Bate), leg of the third pair of the female from Stat. 262, X I'/j- 

 Fig. 8. Haliporiis aeqiialis Sp. Bate, thelycum of the larger female from Stat. 262, X 6; 8a mandibular 

 palpus of the same female, X 5. 



