323 
outer half of the rami consists of siender segments. The spines 
are especially developed on the outer 5—6 segments of the inner 
half of the rami (Fig. 61c). In cirrus IV and V the rami are of 
Fig. 61. Balanus vestitus from Queen Charlotte Sound. a mandible, b maxilla, 
c cirrus III. [a—b X 44, c X 13]. 
equal length, but in cirrus VI there is a shorter ramus measuring 
2 A of the longer one; the numbers of segments are 26 and 32. 
The segments of cirrus IV to VI carry four pairs of anterior spines; 
the distal pair is far larger than the other spines. 
Subgenus Solidobalanus Hoek. 
Balanus auvicoma Hoek. 
38° 12’ S., 149° 40’ E., 100—160 fathoms. „Endeavour“ 16/IX 14. One 
specimen on the axis of an antipatharian, together with Oxy- 
naspis celata, lbla pygmæa, Heteralepas morula, and Pachy- 
lasma scutistriata. 
The specimen from the „Endeavour“ is considerably larger 
than Hoek’s specimens from the „Siboga“ (1913). He does not 
give details in the text as to the size; but according to the draw- 
ings his „larger“ specimen has a greater basal diameter of a little 
less than 2,5 mm, whereas in a „small“ specimen figured at the 
same plate the diameter is between 2,2 and 2,3 mm. The „End- 
eavour“-specimen has a greater (rostro-carinal) diameter of 13 mm. 
The exterior of the specimen (Fig. 62) comes next to the smal¬ 
ler specimen of Hoek (comp. his fig. 7, pi. XIX, 1913). It is white 
with irregular fainter or brighter, brownish red, radial lines crossed 
21 * 
