Vol. VI] FERRIS— AN OP LUR A 181 



Thorax and abdomen thickly beset with spines or with spines 

 and delicate scales. Occurring only on marine mammals. 



Subfamily Echin ophthiriin ce 



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

 Antennae four-segmented. Abdomen thickly beset with 

 spines but without scales. 



Genus Echinophthirius Giebel 



Giebel, Zeitschrift f. ges. Naturw., Vol. 37, p. 177 (1871) ; 

 Piaget, Les Ped., p. 656 (1880); Dalla Torre, Gen. Ins., 

 AnopL, p. 17 (1908) ; Enderlein, Zool. Anz., Vol. 28, p. 137 

 (1904) ; Ibid., Vol. 29, p. 661 (1906) ; Deut. Siidpolar Exp., 

 Vol. 10, p. 507 (1909). 



Antennas four-segmented. Body without scales but thickly 

 beset with stout spines. 



From Pinnipedia. Type of the genus Echinophthirius 

 phocce (Lucas). 



1 — Echinophthirius groenlandicus (Becker). From Phoca 

 groenlandica (Jan Mayen Island). 



1886. Echinophthirius groenlandicus Becker, Oster- 

 reichische Polarforschung, Vol. 3, Ins. von Jan 

 Mayen, p. 60; pi. 5, f. 1-la. 



1908. Echinophthirius groenlandicus Dalla Torre, 

 Gen. Ins., AnopL, p. 17. 



1909. Echinophthirius groenlandicus Enderlein, Deut. 

 Siidpolar Exp., Vol. 10, p. 507. 



2 — Echinophthirius phocce (Lucas). Type from (?) Phoca 

 vitulina (Europe). Also from P. groenlandica, P. varie- 

 gata (Atlantic Ocean), "harbor seals" (Aquarium, New 

 York City), and "see hunde" (Helgoland). 



1834. Pediculus phocce Lucas, Mag. Zool. Ins., p. 121 ; 



pi. 12, f. 1. 

 1842. Hcematopinus setosus Denny, Mon. Anopl., p. 



36. 

 1857. Hcematopinus anmdatus Schilling, Arch. f. 

 Naturgesc, Vol. 23, p. 281. 



