4 2 PROCEEDI^'GS OF THE NATIONAL MUSEUM, vol 63, art. 20. 



Genus HETEROGYROPUS Ewing. 



H. heteronychus Ewing. Proc. U. S. Nat. Mus., vol. 63, 1924, p. 27, text figs. 2 

 and 12, pi. 1, fig. 6. 



Subfamily Glieicolinap: Ewing. 



Genus FARAGLIRICOLA Ewing. 



P. quadrisetosa Ewing. Proc. U. S. Nat. Mus.. vol. 63, 1924. p. 30, text figs. 13 

 and 14 ; pi. 1, fig. 7. 



Genus GLIRICOLA Mjoberg. 



G. distincta Ewing. Proc. U. S. Nat. Mus., vol. 63, 1924, p. 32, text fig. 16. 



G. porceili (Linnaeus). Syst. Nat, 1758, p. 611. 



G. porceili perfoliata (Neumann). Bull. Soc. Zool. France, vol. 37, 1912, p. 216. 



UNPLACED SPECIES. 



Subfamily Gyropinae Ewing. 



Gyropus hispidus Nitzsch. Burmeister's Handbuch, vol. 2, 1838, p. 443. 

 Gyropus lagotis Gervais. Gay's Hist. Cbile, 1849, p. 103 



Subfamily Gliricolinae Ewing. 



Gyropus decuratus Neumann. Bull. Soc. Zool. France, vol. 37, 1912, p. 216, fig. 3 

 Gyropus longicollis Nitzsch. Burmeister's Handbuch, vol. 2, 1838, p. 443. 



EXPLANATION OF PLATES. 



Plate 1. 



Ventral views of the left tarsus of the anterior legs of some of the different 

 species of Gyropidae. All magnified 500 diameters. 



Fig. 1. Protogyropus normalis, female. 



2. Oyropus foi'ficvlatus, male. 



3. Oyropus polUcaris, male. 



4. Oyropus latipollicaris, male. 



5. Macrogyropus dentatus, female. 



6. Eeterogyropus heteronychuH. female. 



7. ParogliricoJa Quadrisetosa, female. 



8. Oliricola porceili, female. 



