PLATE X. 



Fig. 44. Synalpheus Theophane de Man, frontal and antennal region of the largest female with eggs from 



Stat. 282, X IS; 44rt telson, X 20; 44^ small chela viewed from the lower outer side, X 15; 



44f leg of the 2nd pair, X 15; 44^ leg of the 3><i pair, X 15; 44^ dactylus of this leg, X 50. 

 Fig. 45. Synalpheus hastilicrassus Cout., large chela of the male from Stat. 282, X 8; 45 « leg of the 2o<l 



pair, X 15; 45''' large chela of the specimen from Stat. 305, described as a variety of this 



species, viewed from the outer side, X S. 

 Fig. 46. Synalpheus acanthitelsonis Cout., large chela of an egg-bearing female from Stat. 273, X 8; 46^ leg 



of the 2nd pair of a specimen from Stat. 164, X 15; A^b leg of the y<^ pair of this specimen, 



X IS; 46c dactylus of this leg, X 50. 

 Fig. 47. Synalpheus ancistrorhynchus de Man, frontal and antennal region, X iS- 47'' telson, X 30 ; 47/' large 



chela, X 6; 47^ small chela, X 12; 47^ leg of the 2nd pair, X 15; A7 c leg of the 3id pair, X 15; 



47/ dactylus of this leg, X SO; 47^'- extremity of this dactylus, X 320. 

 Fig. 48. Synalpheus Paulsoni Nob. var. Raineszvarensis Cout. Specimen, long. 13 mm., from Atjeh. — 



Fig. 48 frontal and antennal region, X 15; 48^ telson, X 20; ^Sb carpocerite viewed from the 



lower side, X 20; 48c large chela, X 8; 48^ small chela, X 12 ; 48^ leg of the 2nd pair, X 15; 



48/ leg of the 3rd pair, X 10 ; 48^ dactylus of this leg, X 50. 

 Fig. 49. Synalpheus gracilirostris de Man, frontal and antennal region, X 20 ; 49^ telson, X 30 ; 49^^ small 



chela, X 20 ; 49c leg of the 3''d pair, X 20; 49.^^ dactylus of this leg, X SO- 

 Fig. 50. Synalpheus hilarulus de Man, frontal and antennal region, X IS; 50« telson, X 20 ; 50^ carpocerite 



viewed from the lower side, X 20; 50c leg of the 3rd pair, X 15; 50^^ dactylus of this leg, X SO. 



