454 
PACIFIC SCIENCE, Vol. XVIII, October 1964 
Order Aspidochirotida — none 
Order Elasipodida — none 
MATERIAL EXAMINED 
180 specimens were collected from 12 of the 
78 stations worked. Collecting was done by hand 
in the intertidal zone, by diving, dredging, or 
seine netting. 
Area 1, Isla Chiloe, Stations 1-18 
Sta. 4. Punta Gaviota, 42° 03' 50" S, 74° 02' 50" 
W; intertidal boulder beach, volcanic rocks; 
hand collecting; Oct. 4, 11, and 16, 1958. 
Athyonidium chilensis (Semper), 4 speci- 
mens 
Area 2, Puerto Eden to Punta Arenas, Stations 
19-49 
Sta. 19. Puerto Eden, Isla Wellington, the point 
to the north of the FACh base, 49° 08' 20" 
S, 74° 26' 55" W; intertidal granitic gneiss 
rocks, sheltered; hand collecting, also collec- 
tion from Macrocystis fronds and holdfasts 
and sublittoral collection by diving; Nov. 29 
and 30, 1958. 
Pseudocnus dubiosus (Semper), 1 specimen 
Sta. 27. Isla Carlos, 49° 09' 35" S, 74° 25' 24" 
W; collection from Macrocystis fronds and 
holdfasts; Dec. 5, 1958. 
Pseudocnus dubiosus ( Semper ) , 57 speci- 
mens 
Sta. 37. Caletta Lackawana, 49° 10' 32" S, 74° 
25' 52" W; depth 18 m, sand, rock, shell; 
dredge; Dec. 9, 1958. 
Stereoderma laevigata (Verrill), 1 speci- 
men 
Sta. 39. Puerto Eden, west side of Canal Sur, 
49° 09' 52" S, 74° 26' 08" W; intertidal 
boulder beach of granitic gneiss; hand collect- 
ing and collection from Macrocystis fronds 
and holdfasts; Dec. 9 and 11, 1958. 
Pseudocnus dubiosus (Semper), 15 speci- 
mens 
P solus patagonicus Ekman, 30 specimens 
Sta. 40. Isla Duke and Isla Levinson, Puerto 
Eden, 49° 09' 02" S, 74° 25' 10" W; inter- 
tidal and sublittoral granitic gneiss rocks; 
hand collecting; Dec. 12 and 13, 1958. 
Pseudocnus dubiosus (Semper), 2 speci- 
mens 
P solus patagonicus Ekman, 1 specimen 
Area 3, Isla Navarino and Southern Regions, 
Stations 30-78 
Sta. 50. Puerto Williams, Isla Navarino, 54° 55' 
40" S, 67° 39' W; intertidal boulder beach; 
hand collecting; Jan. 7, 1959. 
Neopsolidium convergens (Herouard), 
fragment 
Sta. 52. Puerto Robalo, Isla Navarino, 54° 55' 
50" S, 67° 41' 40" W; intertidal argillite rock; 
hand collecting and collecting from Macro- 
cystis fronds and holdfasts; Jan. 10, 16, 23, 
and 30, 1959. 
Pseudocnus dubiosus (Semper), 10 speci- 
mens 
Neopsolidium convergens (Herouard), 2 
specimens 
Sta. 54. Puerto Grandi, Isla Bertrand, 55° 12' S, 
67° 55' 30" W; boulder beach; intertidal 
hand collecting; Jan. 12, 1959. 
Pseudocnus dubiosus (Semper), 4 speci- 
mens 
Trachythyone lechleri (Lampert), 9 speci- 
mens 
Sta. 73. Seno Grandi, small island opposite 
Puerto Grandi, 55° 15" S, 67° 56" W; col- 
lection from Macrocystis fronds and holdfasts; 
Jan. 5, 1959. 
Cladodactyla crocea (Lesson) , 24 specimens 
Neopsolidium convergens (Herouard), 1 
specimen (juvenile) 
Chiridota pisanii ( Ludwig ) , 4 specimens 
Trochodota purpurea (Lesson), 8 speci- 
mens 
Taenio gyrus contortus (Ludwig), 1 speci- 
men 
Sta. 74. Seno Grandi, peninsula on Isla Navarino 
opposite Puerto Grandi, 55° 11' 20" S, 67° 
56' W; collection from Macrocystis fronds 
and holdfasts; Jan. 5, 1959. 
Trochodota pmpurea (Lesson), 2 speci- 
mens 
Sta. 77. Puerto Grandi, Isla Bertrand, to the west 
of the wharf; 55° 12' S, 67° 55' 30" W; 
intertidal granitic rocks and boulder beach, 
semi-sheltered, hand collecting; Feb. 7, 1959; 
collection by diving among Macrocystis; Feb. 
8, 1959. 
