420 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 115 



female in collection measures 30 mm. from front of head to end of 

 m-opods. 



Male. — All males in collection small, only about }^ length of largest 

 females. Males, however, fully developed sexually. Whether 

 males are normally much smaller than females cannot be 

 determined from the present material. All of the males and the 

 smaller females are much less spinose than the large females. 



The specimens that Gurjanova studied were taken east of Sturup 

 Island, the northernmost of the Kuril Islands. The specimens taken 

 by the steamer Albatross were from the Bering Sea and the vicinity of 

 Otter Island, the westernmost of the Aleutian Islands. 



The specimens taken by the Albatross were from the following 

 stations: 3231 (53°33'30'' N, 167°15'40" W), June 18, 1890, in 54 

 fms., 2 specimens; station 3599 (52°05'00' N, 177°40'00' E), June 9, 

 1894, 1 specimen; station 4782 (52°55' N, 173°27' E), June 9, 1906, 

 in 65 fms., 3 specimens; station 4784 (52°55'40" N, 173°26'00" E), 

 June 11, 1906, in 135 fms., 2 specimens. One vial without locality, 

 21 small specimens. 



Remarks. — Echiniphimedia hodgsoni (Walker, 1907) also has the 

 body clothed with spines, but the resemblance is only superficial. 



Family Gamniaridae 



Anisogammarus schmitti, new species 



Figure 13 



Male. — Head about as long as first 2 body segments combined; 

 side lobe with front margin more or less straight, upper and lower 

 corners rounding, shallow notch near upper corner. Eye not very 

 large, reniform, rather narrow and brownish-black in alcohol. Anten- 

 nae 1 and 2 about equal in length. Antenna 1, peduncular joints 

 decreasing in length consecutively; flagellum perhaps slightly longer 

 than peduncle, composed of about 20 joints; accessory flagellum of 

 5 joints. Antenna 2, fom-th and fifth joints about equal in length; 

 flagellum nearly as long as fourth and fifth joints combined, composed 

 of about 14 joints. 



Right mandible, cutting edge toothed and rather narrow; accessory 

 plate sharply toothed; spine-row of 4 or 5 simple spines and several 

 plumose setae. Molar strong, jwith .plumose seta at rear margin. 

 Maxilla 1, inner plate broad, with closely set row of marginal plumose 

 setae; outer plate with 11 pectinate spine-teeth; palp broad, with 7 

 apical teeth and diagonal row of 5 distal submarginal setae on outside. 

 Maxilla 2, lobes rather broad, bearing usual distal curved spines; 

 inner plate slightly the shorter, bearing diagonal row of 9 plumose 

 spines, first 2 of which longer than rest. Maxilliped rather long. 



