No. 472] MASSACHUSETTS COPE POD A 



215 



Antennae twenty-five-segmented; in the female reaching beyond tips 

 of furcal setae and in the male to the ends of furcal rami. Male right 

 antenna not swollen anterior to geniculate joint; antepenultimate seg- 

 ment without special armature. 



First basal segment of right fifth foot of male (Fig. 3) slightly longer 

 than broad and bearing a tubercle at its outer distal angle which is armed 

 with a sharp strong spine. Second basal segment three fourths as l)road 

 as long; provided with a tubercle bearing three miimte spines at the 

 inner distal angle, and the usual hair on the outer margin. First segnuMil 

 of the outer ramus is as broad as long and has a ridge projecting on its 

 caudal surface near the distal end. Second segment of the outer rainiH 

 two and one half times as long as wide and bears a small spmc on n~ 

 inner margin ; outer margin has a long spine more than half as long as tlir 

 segment, which is placed slightly beyond the beginning of its proximal 

 third and is denticulate on its inner margin. Terminal hook about 

 twice as long as the preceding segment, not strongly tapering; curM'd 

 somewhat sharply near the center ; inner margin denticulato throughout 

 its outer three fourths. Inner ramus of right fifth foot, onc-scgincnt(Ml ; 

 extending well beyond the end of the first segment of tlie outer ramus; 

 liairy at the distal end on both margins. 



Basal segment of male left fifth foot broader than Ioml^: arnie,l with a 



broad as long; provided with the usual li: 

 distal angle. First segment of the out. r 

 segment; twice as long as broad; inner si 



This species stroiiglv resemi>les D. reitjhardi. yiiirsh, but differs 

 from it in enough points to be easily distinguished. Specimens 



