348 THE ASIATIC FUR-SEAL ISLANDS. 



Family LYOOSID^. 



(7) Pardosa sp. 



Two males from Bering Island, July- August (L. Stejneger), witli black cephalo- 

 thorax, abdomen, sternum, and palpi; legs pale yellowish, coxaj black above, and 

 basal part of femora I and II black, and with line above, as also on femora III and 

 IV. Many of the species liable to occur in this region are known only from females; 

 thus it is impossible to tell whether this species is new or not. 



Order ACARINA. 

 Family EHYNOOLOPHID^. 



(8) Bkyncolophus elongaltis, new species. Plate A, fig. 3. 



Eed. Abdomen fully twice as long as broad, slightly constricted at the third 

 legs, broadly rounded at the tip; cephalothorax quite distinctly separated from the 

 abdomen, triangular, with a median dorsal groove, enlarged at tip, with a large eye 

 each side; body rather scantily clothed with short, curved, stiff hairs; fore legs scarcely 

 as long as the body is broad, hind legs widely separated from the fore pair, the fourth 

 pair only a trifle longer than breadth of the body, last joint of leg I a little shorter 

 than the preceding joint, somewhat enlarged, legs clothed with hairs like those of the 

 body. Length, 1.8 mm. 



Type.— So. 4055, U. S. IST. M. 



Several specimens from Bering Island, July-August, 1897 (Mr. Barrett-Hamilton 

 and Dr. Stejneger). By the elongate body, short legs, and small size it differs from 

 any described species of boreal Rhyncolophus. 



Family TEOMBIDID^. 



(9) TromUdium armainm Kramer and Neumann. Acariden wahreud der Vega Expedition eingesam 



melt, p. 521. 



One specimen from Copper Island, August, 1897 (Mr. Barrett-Hamilton). Prob 

 ably belongs here. Described from St. Lawrence Bay. 



Family BDELLID^. 



(10) BdeUa villosa Kramer and Neumann. Acariden wahrend der Vega Expedition eingesammelt, 



p. .52.5. 



Several specimens from Bering Island, July- August, 1897 (Mr. Barrett- Hamilton); 

 one from Glinka, Copper Island, August, 1897 (Dr. Stejneger). It was described from 

 Bering Island. 



(11) Bdella borealis Kramer and Neumann. Acariden wahrend der Vega Expedition eingesammelt, 



p. 525. 

 One specimen from Bering Island, July-August, 1897 (Dr. Stejneger). It was 

 described from Grautley Harbor, on the American side of Bering Strait. 



(12) Bdella frinida, new speoies. Plate A, fig. 5. 



Eerl. The body subpyriform, broadly rounded behind, tapering in front, with a 

 few scattered hairs above; cephalothorax triangular, two eyes each side near base; 

 mandibles very slender and long, with about four hairs each side; palpi long, secoml 

 joint not reaching to tip of mandibles, third and fourth short, subequal, fifth about 

 ;is long as second; with two bristles at tip, the outer one being fully one-half the 



