﻿150 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lOo 



This species was described from a single female specimen taken 1 

 mile off the east coast of Bouvet Island, and these records extend its 

 range to the west coast of the Palmer Peninsula. As Dr. Gordon 

 suspected, the male oviger belongs to her Group I : the fourth joint is 

 comparatively straight, and the fifth is curved in its proximal third 

 and is without any swellings or processes. The spine formula of the 

 terminal segments of the oviger is 23 : 18-20 ; 17 : 17 : : 6. The denticu- 

 lation of the terminal spine of the oviger is restricted to the distal half. 

 The chelae of several of the male specimens have black-tipped fingers. 



Stephensen's records indicate the occurrence of this species near 

 Peter I Island ; both of his specimens are evidently females. 



NYMPHON sp. 



EECORD OF COLLECTIONS 



Station 238, 2 juveniles. 



These specimens are too young for determination, but they appear 

 to be intermediate between subtile and paucidens, suggesting the close 

 relationship of these two species. 



PENTANYMPHON ANTARCTICUM Hodgson 



Pentanymplion antarcticum Hodgson, 1904, pp. 458-462, 1 pi.; 1907, pp. 36-39, 

 pi. 5.— Gordon, 1932b, pp. 24-26; 1944, p. 14.— Schmitt, 1945, p. 297.— 

 Hedgpeth, 1947, p. 13 ff., fig. 6, pp. 51-53 (dist. table), figs. 4, 11 (dist. 

 maps). — Stepiiensen, 1947, p. 81. 



record of collections 



Station 103, 1 male, 1 female ; station 193, 1 male ; station 226, 1 juvenile ; station 

 237, 4 males (2 ov.) , 2 females ; case No. 1, 1 female. 



The collection reported hj Schmitt (four specimens, including one 

 larvigerous male) represents the entire pycnogonid haul of Admiral 

 Byrd's well-publicized United States Antarctic Service Expedition 

 of 19a9-41. 



This is a widely distributed circumpolar species. These records 

 are from Ross Island (station 103) and Marguerite Bay, south of 

 Adelaide Island, west of Palmer Peninsula. I have tabulated all the 

 previous records elsewhere (1947), except the recently published ones 

 of Stephensen (1947) from Port Lockroy, Palmer Peninsula. 



Family PALLENIDAE Wilson, 1878 

 Genus PALLENOPSIS Wilson, 1881 



PALLENOPSIS PATAGONICA (Hock) 



PlioxicMUdium patagonicum Hoek, 1881, pp. 84-86, pi. 12, figs. 6-9. 

 Pallenopsis patagonica Gordon, 1932b, pp. 88-90, fig. 44 ; 1944, pp. 46-48, fig. 15, 

 b, d, e. 



