EUDACTYLINA SIMILIS. 131 



moderately short spine on the inner aspect, while the 

 end joint bears two curved spines which are stout and 

 claw-like ; the second joint rather shorter than the 

 first or third, and the terminal one very small. 

 Mandibles slender and moderately elongated, with the 

 distal half of the end joint serrated on the inner edge. 

 Maxillae small, bilobed, principal lobe stout, rather 

 longer than broad, and provided with apical setae of 

 unequal length, one being nearly twice as long as 

 the others; secondary lobe elongated, narrow, and 

 bearing a moderately long apical seta. First maxilli- 

 peds small, three- jointed, and furnished with a short 

 but rather stout terminal claw. Second maxillipeds 

 tolerably large and strongly chelate ; the end joint 

 considerably expanded and its postero-lateral corners 

 more or less produced, one of them extending into a 

 spoon-like process, while to the other is articulated 

 a strongly-curved claw, the apex of which impinges 

 against the spoon-like process of the opposite angle, 

 thus forming an effective grasping organ. 



First pair of thoracic legs somewhat similar to those of 

 Eudactylina acuta except in the following particulars : 

 the second basal joint is furnished with two small but 

 stout spines on the inner distal angle instead of a 

 fringe of stout marginal spinules ; the first joint of 

 the outer ramus is proportionally considerably larger 

 than either the second or third joints, the inner 

 ramus is more slender, and the articulations are more 

 unequal. The second pair are similar in structure to 

 the same pair in Eudactylina acuta, but the outer ramus 

 is proportionally and distinctly larger. ' The third and 

 fourth pairs are somewhat similar in the two species ; 

 the fifth, however, are larger and proportionally broader 

 than those of the species named, the length does not 

 greatly exceed the width, and there is also a corre- 

 sponding difference in their outline. Caudal rami 

 about twice as long as the anal segment of the 

 abdomen, and moderately wide but becoming narrower 

 towards the apex, each bearing three small spiniform 



