PLATE XL 



Fig. 51. Synalphetis biunguiculatus (Stimps.) Cout., telson of the male from Stat. 282, X 15; Si« leg of 

 the 3rd pair of this male, X 15; 51^ dactylus of this leg, >s 50; 51^ leg of the y^ pair of the 

 female from the same Station, X 15; 51^^ dactylus of this leg, X 50. 



Fig. 52. Synalphetis amabilis de Man. Type, frontal and antennal region, X 20; i,2a telson, '; 20; 52^ and 

 52c large chela viewed from the inner respectively outer side, X 8; 52(/ and 52^ small chela 

 viewed from the inner respectively outer side, X 8; 52/" leg of the 2"<i pair, X 20; 52^'' leg of 

 the y^ pair, X 20 ; 52/^ dactylus of this leg, X 50. 



Fig. 53. Synalpheus bitubercnlatus de Man, frontal and antennal region of the largest specimen from Stat 164, 

 X 15; 53« frontal and antennal region of a specimen, long 12 mm. from Stat. 273, X IS; 

 53(^ frontal and antennal region of the specimen from Stat. 282, X 15; 53<^ telson of the spe- 

 cimen from Stat. 164, ^, 15; 53^/ telson of the specimen from Stat. 273, X '5; 53^ large chela 

 of the specimen from Stat. 273, viewed from the outer (lower) side, X 8; 53/ the same chela 

 viewed obliquely from behind, X 8; 53_o- carpus and chela of the small cheliped of the same 

 specimen, viewed from the outer (lower) side, >; 12 ; 53/; leg of the 2nd pair, of the same 

 specimen, X 15; 532 leg of the 3rd pair and 53/ dactylus of this leg, of the same specimen, 

 X 15 respectively, X 50. 



Fig. 54. Synalpheus bispivosiis de Man, frontal and antennal region, X 15; 54a telson, ; 15; ^i,b large 

 chela, outer (lower) side, X 8; 54c small cheliped, outer side, X 12 ; 54^/ leg of the 2id pair, 

 X IS; S4^ leg of the 3id pair, X 15; 54/ dactylus of this leg, X 50. (All the figures are taken 

 from the male from Stat. 33). 



