ART. 8. ON" BOECKELLA AND PSEUDOBOECKELLA MARSH. 3 



I Right endopodite of male fifth feet of 1 segment 3 

 Right endopodite of male fifth feet of 2 segments 4 

 Right endopodite of male fifth feet of 3 segments 5 



Firstantennaereach to second abdominal segment, right endopodite of male fifth 

 feet very short, digitate gracilis Daday. 



First antennae extend to end of furca, right endopodite of male fifth feet equals 

 the first two segments of the exopodite, is pointed and curved inward. 



occidentalis Marsh. 



/•The first antennae extend to end of furca, the last thoracic segment of the female 

 is only slightly produced, the left endopodite of the male fifth feet is of one 

 segment gracilipes Daday. 



The first antennae reach the end of the furcal setae, the last thoracic segment of 

 the female reaches the end of the first abdominal segment, the left endopodite 

 of the male fifth feet is of 2 segments poopoensis Marsh. 



Lobes of last thoracic segment in female reach to third abdominal segment. 



bergi Richard. 



Lobes of last thoracic segment of female do not exceed one-half of first abdominal 

 segment micliaelseiii Mrazek. 



The first antennae reach one-half the length of the furcal setae, the endopodite 

 of the right male fifth foot is 1 segmented insignis Smith. 



The first antennae reach to the furca, the endopodite of the right male fifth foot 

 is 3 segmented Hemiboeckella searli Sars. 



Right endopodite of male fifth feet of 1 segment 8 



Right endopodite of male fifth feet of 2 segments 13 



Right endopodite of male fifth feet of 3 segments 14 



In male fifth feet the inner margin of the second basal segment of the left foot 

 is serrate, the left endopodite is irregularly curved coronaria Henry. 



In male fifth feet there is a rather prominent serrate lamella on the inner sur- 

 face of the second basal segment of the left foot 9 



In male fifth feet, the second basal segment of the left foot has no serrate mar- 

 gin and bears no serrate lamella 11 



Fii-st antennae of female extend to or beyond the furca, the right endopodite of 

 the male fifth feet has a process or tubercle on the inner surface near the 

 base 10 



First antennae of female extend to third abdominal segment, the right 

 endopodite of the male fifth feet does not have an inner process or 

 tubercle triarticuiata Thompson. 



The lobes of the last thoracic segment in the female extend one half the 

 length of the first abdominal segment oblonga Sars. 



The lobes of the last thoracic segment in the female exceed the first abdominal 

 segment, the left endopodite of the male fifth feet is 1 segmented . orientalis Sars. 



The lobes of the last thoracic segment in the female exceed the fiist abdominal 

 segment, the left endopodite of the male fifth feet is 2 segmented. 



fluvialis Henry. 



The left endopodite of the male fifth feet is short 16 



The left endopodite of the male fifth feet equals in length the first segment of 

 the exopodite 12 



The left endopodite of the male fifth feet is wanting asjrmmetrica Searle. 



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11. 



