- 10 - 
JR-39-78 June 24, 1978 - 7:00 P.M. 
Bahia De La Paz (east side) 
about 4 miles north of La Paz,_ 
Baj a California Sur 
Mexico 
Route Mex 11., on shore rocks just above water Littorina 
penicil lata and Nerita ' 
24.10 N; 110.18 W 
JR-40-78 June 25, 1978 - 5:30 P. M. 
Bahia De La Paz (south side) 
about 8 miles west of La Paz 
El_ Centenario 
Ba ja Cal ifornia J5ur 
Mex ico 
Route Mex. 1, west of La Paz; pebble and sand conglomerate 
shore, low tide, dead shells only, no Littorina. 
ca 24.10 N; 110.18 W ~ 
JR-41-78 
2^:00 fJo n a/ — /,’ 3op.M* 
June 26, 1978 
Pacific Ocean *■ 
Punto Lobos Beach, about 2^5 miles south of Todos Santos 
beyond jMte-h of paved road Mex. 9, 
Baja California Sur t. o.S/’ «»"'*•• (A 1 V- 
Mexico 
Littorina modesta , pullata , penicillata , and aspera in 
crevices of rocky promontory at south end of beach” 
ca 23.27 N; 110.13 W 
JR-42-78 June 26. 1978 
Pacific Ocean 
t *~a 4.3 miles south of Todos Santos, beyond 
end of paved road, Mex. 9, 
Baja California Sur t ' 1 j At< 
Mexico 
4 species of Littorinidae, as in JR—41-/0, active! 1 
xn sur a , rocky heactland at south end of beahlt; nearlv high 
c 
iwl 
tide-Salinity 34% a in open surf; 12%«in hypo saline lag 
behind beach 
ca 23.27 N; 110.13 W 
L A 
