CIRRIPEDS FROM THE JUAN FERNANDEZ ISLANDS 485 
The minor part of the material belongs to very typical ZL. anatifera 
fig. I a--d) and agrees with the figures given by BROCH (1924, fig. 15). Thus 
the right scwtwm has an umbonal tooth which in the original description is 
given as typical, but later on mentioned as a variable character (WELTNER, 
1900, p. 291). The cariva is rather narrow and extends rather far up between 
the terga. The praeumbonal part is distinctly forked, as seen from the fig. 
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LA 
y 
‘ 
\ 
BA 
YG 

Fig. 1. Lepas anatifera LINNE. 
@ typical specimen (total length 45 mm.); 4 the lower part of the scuta in ventral view, 
showing an umbonal tooth on the right scutum; ¢ carina, dorsal view; d the fork of the carina 
seen from beneath; e more aberrant specimen (total length 62 mm); / the lower part of the 
scuta in ventral view without umbonal teeth; g carina, dorsal view; #, 7 the fork of other 
individuals showing the variation, 
1 c, a. I have nothing to add to the description of the ‘erga. The internal 
parts are also in perfect accordance with the figures given by BROCH. 
The greater part of the specimens differs a little from the typical ones but 
not sufficient to justify the description of a new variety. Both types grew 
mixed among each other. Thus of three individuals of the same size, which 
