36 University of Michigan 



Spiroboloidka 



Rhixocricidak 



Rhinocricns hrcvipes Carl 



Colombia : San Lorenzo. Under leaves at elevation of 

 2,500 feet, July 15, 1913; and at elevation of 2.000 feet, July 

 16, 1916; F. M. Gaige. 



Four females agreeing well in all structural details wil.h 

 the original description, excepting that the segments number 

 44, 45, and 47, instead of 42. 



Rhinocricns arhorcus Saussure 



Unted States Mrgin Islands: St. Croix; Sept. 14-18, 1914. 



Mr. Gaige, the collector, notes that these millipedes "were 

 abundant over the island, usually found in the trees, where 

 they frequently gathered in clusters of three or four to twenty 

 or more." 



Rhinocricns monilicomis (Porat) 



United States Virgin Islands: St. Croix; July 16, 1914; 

 F. M. Gaige. Four specimens taken with Trigoniitlits Itini- 

 bricinus Gerstaecker in interior of island. 



Briti.sh Guiana: Labba Creek Sand Hills; July 27, 1914; 

 F. M. Gaige. Two males and six females collected in rotten 

 wood. 



East Trail along Demerara River, close to hiigh-water 

 mark; Aug. 8, 1914; F. M. Gaige. One male and one female. 



Rhinocricus hylophilus, sp. nov. 

 Female. — The body in general is deep olive to nearly black, 

 excepting the caudal borders of metazonites, which are dull 

 ferruginous forward more than half way to the suture, and 

 the covered portion of prozonites, which is paler, as usual. 

 Collum bordered with ferruginous. Head on the lower bor- 



