J 32 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Sek. 



1874. HcBmatopinus setosus Giebel, Ins. Epizoa, pp. 



42-43. 

 1880. Echinophthirius sctosiis Piaget, Les Ped., pp. 



656-658; pi. 54— f. 1. 

 1896. Echinophthirius setosus Osborn, Bui. 5, n. s., 



U. S. Dept. Agr., Div. Ent., p. 188. 

 1904. Echinophthirius phocce Enderlein, Zool. Anz., 



Vol. 28, p. 136. 



1908. Echinophthirius phoccc Dalla Torre, Gen. Ins., 

 Anopl., p. 17. 



1909. Echinophthirius phocce Enderlein, Deut. Siid- 

 polar Exp., Vol. 10, p. 507. 



1910. Echinophthirius phoccB Mjoberg, Ark. f. Zool., 

 Vol. 6, pt. 13, p. 176. 



1913. Echinophthirius phoccs Evans, Proc. Roy. Phys. 

 Soc, Edinburgh, Vol. 19, p. 95, fig. 

 3 — Echinophthirius sericeus Meinert. From Phoca sp. 

 (Greenland). 



1896. Echinophthirius sericeus Meinert, Vedenska- 



belige Meddelelser, p. 177. 

 1908. Echinophthirius sericeus Dalla Torre, Gen. Ins., 

 Anopl., p. 18. 



Subfamily Antarctophthiriince 



Enderlein, Deut. Sudpolar Exp., Vol. 10, p. 506 (1909). 

 Antennae four- or five-segmented. Thorax and abdomen 

 beset with many stout spines and with delicate scales. 



Genus Antarctophthirus Enderlein 



Antarctophthirus Enderlein, Zool. Anz., Vol. 29, p. 661 

 (1906) ; Deut. Sudpolar Exp., Vol. 10, p. 506 (1909) ; Dalla 

 Torre, Gen. Ins., Anopl., p. 17 (1908); Kellogg & Ferris, 

 Anopl. and Mall, of N. Am. Mam., p. 48 (1915). 



Arctophthirus (in part) Mjoberg, Ark. f. Zool., Vol. 6, pt. 

 13, p. 178-179 (1910). 



Antennae five-segmented. Anterior legs and claws much 

 smaller than the others, which are extraordinarily large and 

 stout. No sternal plate. No pleural plates. Abdomen and 



