PLATE XII. 



Fig. 55. Synalplieus triacanthiis de Man, frontal and antennal region, X 15; 55 « telson, - 15; 55/; large 

 chela, inner side, X 6; 55^ small cheliped, X lO; 55^ leg of the 2Dd pair, X IS; 55<' leg of the 

 y^ pair, X 15; 55/ dactylus of this leg, X SO. 



Fig. 56. Synalplieus qiiadridens de Man, frontal and antennal region, X 25; 56a telson, ; 25; 56/^ small 

 cheliped, X 15; 566* leg of the 3i<i pair, X 15; 561^ dactylus of this leg, X 50. 



Fig. 57. Synalplieus qiiadrispinosus de Man, frontal and antennal region, X I2; 57a telson, X 12; ^jb large 

 chela, outer side, X 6; 576- small cheliped, outer side, X 8; 57^ leg of the 3i'<i pair, X 12; 

 57^ dactylus of this leg, X 50; 57/ dactylus of the y^ leg of the adult specimen from Stat. 164, 

 X 50 ; 57^ dactylus of the 3>d leg of the young male from Stat. 315, X 50. (The figures 57 — 57^- 

 are taken from the adult female from Stat. 273). 



Fig. 58. Synalplieus trispinosus de Man, frontal and antennal region of the adult specimen, X 12; 58(7 telson, 

 X 12; 58;^ large chela, viewed from the lower outer side, X 6; 58^ small cheliped, X8; 5815^ leg 

 of the 2n'i pair, X 12 ; ^%e leg of the y^ pair, X I2; 58/ dactylus of this leg, X 50. 



