BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



In one specimen examined the maxillipeds consisted each of two 

 articles. This, of course, was an abnormality, as all the other speci- 

 mens in the collection had maxillipeds composed of the usual number 



FIG. 67. ClROLANA HAYANA (AFTER IVES) . O, FIFTH LEG (RIGHT SIDE). 6, DORSAL VIEW OF RIGHT 

 ANTENNA OF SECOND PAIR. C, ANTERIOR VIEW OF SAME. (I, LAST SEGMENT OF ABDOMEN WITH URO- 

 10DA. f, FIRST LEG (RIGHT SIDE). /, FOURTH LEG (RIGHT SIDE). 



of articles. The genus Branchuropus Moore is characterized as hav- 

 ing the maxillipeds two-jointed. Only one specimen of the species, 

 B. littoral'is, was obtained, and it seems as though there might be 



Q 



O 



FIG. 68. ClROLANA MAYANA (AFTER IVES). 



a, DORSAL VIEW, x 4. b, RIGHT SIDE, x 4. 

 c, SEVENTH THORACIC SEGMENT WITH MALE 



APPENDAGE. 



FIG. 69. ClROLANA MAYANA. O, MANDIBLE. 



x 39. 6, c, ABNORMAL MAXILLIPED. x 39. 

 d, SECOND MAXILLA, x 39. 



some question as to its being normal in this respect. The genus 

 Anuropw Beddard was also instituted because the type and only speci- 

 men had, among other characters, the one of having maxillipeds com- 

 posed of two articles. 



