CIRRIPEDS FROM THE JUAN FERNANDEZ ISLANDS 487 
pitulum. The left scutum is very reduced and the tergum is divided into an 
upper and a lower part. 
Measurements in millimetres: 
Capitulum Pedunculus 
length width length thickness 
Largest individual... 40 24 33 II 
Smallest individual . . 8,5 6,5 4 3 
In the internal parts there are no differences of importance from the first 
mentioned specimens. The typical two filamentary appendages are developed. 
Locality: Masatierra, Cumberland Bay. On a buoy, 3.1. 1917, No 205. 
Several specimens. WELTNER (1895) describes large specimens collected by 
Dr. PLATE in the same place. 
Distribution: Cosmopolitan and pelagic on floating objects. 
L. australis weltneri n. var. — Fig. 2. 
Discussion and complementary description: 1 have named this new variety 
for Prof. WELTNER, who first described it from Talcahuano, Chile (coll. by 
Dr. PLATE). He brought it Z. australis, but remarked that it differed in sev- 
eral respects from the type: »Man konnte die hier beschriebene Form fir eine 
neue Art halten, wenn nicht die unvollstandige Verkalkung der Schalentheile 
und der Mangel der Eierlamellen darauf hinweise, dass hier abnorm gebildete 
(in den Schalentheilen) und noch nicht ausgewachsene Exemplare vorliegen, 
die ich zu Lepfas australis Darw. stelle» (1895, p. 290). 
By studying the specimens in the Berliner Museum (No. 8993) it was 
possible to establish that my material is quite the same as that described by 
WELTNER. As he had only very young specimens it was not easy to classify 
them exactly. My material, which is much richer and consists of individuals 
af all sizes, shows much better than WELTNER’s the definite form of the 
mature individuals. These are not typical Z. australis, a species I have re- 
cently examined. But the differences are not of specific value. I do not 
believe that the form represents a local race or subspecies because WELTNER 
has also seen specimens of the same shape from South Africa (Cape Town). 
Thus it is better to regard them as a new variety of ZL. australis, of which 
species no variety has been described before. 
In fig. 2 figures are given of some stages of this variety. The first two pupa 
stages show the shape of the primordial valves. In the third stage figured the 
calcareous plates are developed. The occludent margin of the scutum begins 
to become more and more convex; thus the triangular primordial plate is 
more removed from the margin. It is of interest to note that in the earlier 
stages both scuta have a more or less distinct tooth (not observed by WELT- 
NER). These teeth are not to be found in the fullgrown specimens, a character 
considered by WELTNER to be typical for this form. 
