PLATE XV. 



Fig. 71. Alpheus sp., female from Stat. 66 with eggs, frontal and antennal region, X 20 ; 'jia telson, , 20; 

 ■j\b leg of the 3rd pair, >; 10 ; "jxc dactylus, X 50. 



Fig. 72. Alpheus Aretliusa de Man, frontal and antennal region of the male, X 20 ; 72 cr lateral view of 

 the abdomen of the male, X 10 ; 721^ the same of the female, X 10 ; 72^: telson of the male, 

 X 20; 72^ large cheliped of the male, outer side, X 10 ; 72^ large chela of the male, lower 

 side, X lO; 72/ large cheliped of the female, outer side, X lO; 72^ large chela of the female, 

 lower side, X lO; 72/^ small cheliped of the male, outer side, X 12 ; 72? small chela of the 

 male, lower side, )( 12 ; 72^ small cheHped of the female, outer side, X 12 ; 72^ small chela 

 of the female, lower side, X 12 ; 72/ leg of the 2nd pair of the male, >' 20 ; 72;^ leg of the 

 3id pair of the male, X 20; 72« dactylus of this leg, X 50. 



Fig. 73. Alpheus paralcyone Cout., large chela of the largest specimen from Stat. 49a, viewed from the 

 outer side, viz. the upper border, X 8; 73a the same, viewed from the inner side, viz. the inner 

 border, X 8; "jib leg of the 3rd pair, X 12; 73 f leg of the 4th pair, X 12. 



Fig. 74. Alpheus parvus de Man, frontal and antennal region, X 25; 74^ telson, X 25; 741^ small cheliped, 

 X 20, the chela is looked at somewhat obliquely from the inner side, so that the basal part of 

 the dactylus is invisible, immobile finger broken off in the middle; 74^ merus, carpus and chela 

 of the 2n(l leg, X 25 ; 74^ leg of the 3rd pair, >; 25. 



