490 
PACIFIC SCIENCE, Vol. XV, October 1961 
TABLE 2 
Records of Capture of Developing Eggs and Young Sarda from the Eastern Pacific Ocean 
DATE 
GENERAL 
LOCALITY 
LATI- 
TUDE 
LONGI- 
TUDE 
HOW 
CAPTURED 
SIZE, 1 
mm. 
NO. 
SPECIES 
REFERENCE 
OR 
COLLECTOR 
Jun. 30, 1927 
off La Jolla, 
plankton 
eggs 
p 
chiliensis 
Barnhart, 
Calif. 
net 
1927 
May 17-18, 
off La Jolla, 
night light, 
post- 
1 
chiiiensis 
Hubbs 2 
1947 
Calif. 
dip net 
larva 
Feb. 20, 1951 
off Pt. Lobos, 
p 
125-130 
3 
chiliensis 
Vildoso, 1955 
Peru 
Aug. 5, 1951 
off Baja Calif., 
25° 35' 
113° 56' 
night light, 
42 
1 
chiliensis 
Fish & Wild- 
Mexico 
N. 
W. 
dip net 
life Service 3 
Aug. 12, 1951 
off BallenasBay, 
26° 29.5' 
113° 29.2' 
plankton 
2.9, 3.5 
2 
p 
Fish & Wild- 
Baja Calif., 
N. 
W. 
net 
life Service 3 
Mexico 
Jan. 3, 1956 
off Pt. Negra, 
bait net 
143-164 
3 
chiliensis 
M.V. 
Peru 
"Corsair’ 1 
Dec. 10, 1957 
Independencia 
14° 14' 
76° 12' 
bait net 
128 
1 
chiliensis 
B.M. Chatwin 
Bay, Peru 
S. 
W. 
& P. Boylan 4 
Dec. 18, 1957 
off Ilo, Peru 
bait net 
70-135 
3 
chiliensis 
Arnold Neves 1 
Dec. 31,1957 
off Pt. Pichalo, 
19° 35' 
70° 16' 
night light, 
37 
1 
chiliensis 
B.M. Chatwin 
Chile 
S. 
W. 
dip net 
& P. Boylan 4 
Jan. 3, 1958 
off Pt. Dos 
24° 30' 
70° 49' 
night light, 
39 
1 
chiliensis 
E. Brinton 5 
Reyes, Chile 
S. 
W. 
dip net 
Jan. 3, 1958 
off Pt. Dos 
24° 36' 
7i° or 
night light, 
36-44 
3 
chiliensis 
E. Brinton’’ 
Reyes, Chile 
S. 
w. 
dip net 
Jan. 14, 1958 
SW off Fraile 
13° 14.8' 
77° 55.5' 
night light, 
34 
1 
chiliensis 
E. Brinton 5 
Pt., Peru 
S. 
W. 
dip net 
Feb. 1958 
off Chimbote, 
bait net - 
89-129 
3 
chiliensis 
Arnold Neves' 1 
Peru 
May 6, 1958 
Almejas Bay, 
bait net 
103 
1 
chiliensis 
M.V. 
Baja Calif., 
"Lou Jean” 1 
Mexico 
Feb. 1, 1959 
Sama Cove, 
bait net 
111 
1 
chiliensis 
M.V. 
Peru 
"Norman- 
die” 4 
Mar. 15, 1959 
off Ilo, Peru 
p 
135-160 
3 
chiliensis 
P. Talledo 6 
Mar. 16, 1959 
off Barranca, 
p 
173, 199 
2 
chiliensis 
Vildoso' 1 
Peru 
1 Direct distance from tip of snout to tip of shortest median caudal ray. 
2 Field-book data of C. L. Hubbs, Scripps Institution of Oceanography, La Jolla, Calif. 
3 In the collection of the South Pacific Fishery Investigations of the U.S. Fish and Wildlife Service, La Jolla, Calif. 
4 In the collection of the Inter-American Tropical Tuna Commission, La Jolla, Calif. 
5 In the collection of the Scripps Institution of Oceanography, La Jolla, Calif. 
0 In the collection of the laboratory of Pesca y Caza, Lima, Peru. 
The planktonic specimens caught off Baja 
California have between 4$ and 45 myomeres, 
the actual number being difficult to establish. 
The mouth is large and contains a set of large 
teeth. There are three spines along the posterior 
edge of the preoperculum. The unpaired fins 
show little development and are still represented 
by the median fin fold. The embryonic pec- 
torals can be distinguished but there is no in- 
dication of the pelvics. The pigmentation of the 
head consists of distinct chromatophores over 
the area of the brain and an aggregation of 
what appears to be a group of chromatophores 
at the symphysis of the pectoral girdle. There 
