Gatty Marine Laboratory, St. Andrews. 145 
Dongonab, Red Sea. 9.1916. 
Many of the tubes were empty, and the forms were young. 
In the Red Sea Filograna produces ova in the coldest 
month of the year. In the same region Dr. Crossland * 
found that Meleagrina vulgaris sheds ova in the winter, 
whilst M. margaritifera biceds only in the summer. The 
same careful observer remarks that he has not yet seen 
Filograna amongst coral, but it is common on buoys, on the 
bottoms of boats which have been standing in the harbour, 
on piles in sheltered water, and in sponges. All its habitats 
in shallow water are sheltered, and the fragility of the 
calcareous tubes probably render ‘this necessary. 
Madras Harbour, India +. 
Tubes of the same form were dredged by the late Dr. John 
Anderson east of Verribles, India, in 13 fathoms. 
The branchiz of those from Madras Harbour show slight 
enlargements at the tips of the filaments. Though the 
preparations were not very favourable, vet in an example one 
of the tips exceeded the others in size, but had the same 
structure. Asa rule, the tips are probe-pointed, though in 
some the terminal cushions are larger and more boldly 
glandular. From seven to eight pairs of bristles occur in 
the anterior region. So far as could be observed, the 
structure of the collar-bristles is typical. 
Sydney Harbour, Australia. 4.1916 t. 
The specimens are characterized by the blackish colour § 
of the branchiz—especially their distal ends, which thus 
boldly contrast with the white tubes, and the anterior region 
of the body in some is also of a dark hue, The branchize 
appeared to be comparatively thick and ‘stumpy, the pinne 
in some and the terminal process of the filament devoid of 
enlargement, though it was stout. All had two eyes. The 
number of the bristle-bundles of the auterior region was 
usually nine, young forms had eight. There were no 
opercula. The collar-bristles agree with the type found at 
St. Andrews. 
* To whom I am greatly indebted for these and many other specimens, 
+ For the examination of these I-have to thank Dr. “Annandale. 
{ Kindly forwarded by Prof. Haswell. 
§ Whether osmic acid had been used for killing is as yet unknown. 
Ann. & Mag. N. Hist. Ser. 9. Vol. i. 10 
