4 University of Michigan 



flagelluni of the second antennae. A count of the segments of 

 the flagella of the first antennae of forty individuals collected 

 in the Cortez Range, July 24, gave the following results: 



Males. 



Xumber of segments in flagelluni 13 14 14 14 19 17 16 15 



Number of segments in accessory 



fl?^ellum 10 II 10 12 ID 10 II II 



Xumber of animals 5 4 3 2 i i I 2 



Femai.ks. 



Number of segments in 



llagellum 13 12 15 11 10 16 14 14 13 12 12 12 7 



Number of segments in 



accessory flagellum 10 10 8 8 7 9 10 8 11 11 9 S 6 



Number of animals 4 ?, 2 2 2 i i i i i i i i 



Is is apparent that in this species the flagella of the antennae 

 contain more segments than those of H. azteca; in other re- 

 spects the specimens examined agree with the original descrip- 

 tion of the species.- H. ornata has previously been reported 

 from Lake Catemaco, Vera Cruz, Mexico, at an altitude of 

 J290 feet. 



ISOPODA. 



12. CycIisticHS convexus (De Greer). — Collected from 

 four stations above the dam in Moleen canyon, July 25 to 

 August 10. All specimens have the frontal lobe of the head 

 very prominent, but agree in other respects with the published 

 descriptions. 



* 13 Ann. Rept. Mich, Acad. Sci., p. 109. 



