316 PROFESSOR W. A. HERDMAN ON THE 
II. Station 325, Scotia Bay, April 1903. One specimen, 30x 4x3 em., bad 
condition. 
III. Station 325, Scotia Bay, South Orkneys, December 6, 1903; temp. 29°8° ; 
floating on surface. 80 em. x 2 (tapering to 1) em. 
IV. Station 325, Scotia Bay, South Orkneys, December 26, 1908 ; to) 30°7°. 
(1) 85 (incomplete) x 1°5 (tapering to 1) em. 
(2) 75 em. (incomplete) and two fragments. 
V. Station 326a, Brown’s Bay, South Orkneys, November 1903. Two specimens : 
(1) 55 x 2 to 3 cm; (2) 40x 2 em. 
VI. Scotia Bay, South Orkneys, January 17, 1904; temp. 32°5°; thrown up on 
beach. One colony, 20 x 5 cm., with several Styela lactea attached ; in 
~ bad condition ; most of Ascidiozooids lost. 
VIL. Scotia Bay, South Orkneys, January 3, 1904; temp. 31°5°; thrown up on 
beach. Two very long specimens: (1) over 100x2 em.; (2) over 
150 x 2 cm. 
VIII. Scotia Bay, South Orkneys, November 25, 1903; surface. Three small 
colonies, 20 to 30 x 1 to 1°5 em. 
IX. Scotia Bay, March 25, 1903. One small colony, 10x 2 cm.; bad condition; 
most of Ascidiozooids gone. 
Most of these specimens are, unfortunately, in very bad condition, and were probably 
dead or decomposing when collected. The Challenger specimens were in such a rotten 
condition that it was impossible to determine even the genus. But from the rather’ 
better material brought home by the Southern Cross Expedition I was able to determine 
that the Challenger specimens—evidently the same species—belonged to the genus 
Distaplia. What Cauman described as Julinia australis in 1894 is again the same. 
SLUITER, in his report on the Charcot Tunicata, thinks that “ Julinia” may be — 
recognised as an independent genus because of the elongated form of the colony; but 
Distaplia clavata (Sars), from Arctic seas, although it does not attain to such a length, 
has the same elongated form—and therefore it cannot be said that a Distaplia with this 
habit of growth is unknown. 
The colony found floating on the surface in Scotia Bay, December 26, and measuring 
about 85 em. in length, is the best preserved specimen in the collection, and I think 
the best preserved that I have seen in any collection brought back from the Antarctic. 
The colony, although soft, does not seem to be rotten. The Ascidiozooids are distinet 
and large and closely placed throughout its length. Their exposed ends measure about 
2 mm. across, and are of an opaque pale yellow colour, in contrast to the translucent grey 
of the test in which they are embedded. Throughout the greater part of the colony the 
Ascidiozooids appear to be in long meandering lines, but here and there one comes upon 
a circular, elliptical, or more irregular group (fig. 2), reminding one of the arrangement 
in a Botrylloides. Both ends of the colony are incomplete, and at the upper end the 
Ascidiozooids appear to be dropping out of the test. 
