A. W. WATERS—REPORT ON THE BRYOZOA. 253: 
ADDENDA. 
AETEA CROSSLANDI, sp. nov. (Plate 24. fig. 5.). 
Pieces of dry seaweeds covered with this species were quite recently sent 
to me, and, as it is a most interesting species, it seems advisable to add 
description to the present communication. 
The creeping portion of the zocecium is narrow pear-shaped, diminishing 
at the proximal end to a narrow tube ; the erect tubular portion is long and 
narrow, reaching in some cases to 2 mm.; neither part is ringed or spotted, 
but both are annulated. A new zocecium arises frem the distal end, but some- 
times a creeping zocecium arises from the side. There are also frequently very 
interesting appendages growing erect from the side: at first they are small 
tubes; then next they take the form of a coachman’s horn; then laterally 
from the end there is a short tubular prolongation with a very short area, 
but in other respects corresponding with the ordinary tubular prolongation ; 
then, finally, laterally in the other direction there is a narrow short abel and 
in one case this produces an appendage like the one just described. This 
seems to bea case of small erect zocwcia growing from the older zocecia. 
There are one or a pair of these appendages to the creeping zocecium, though 
in one case there are several tubes on this creeping part. 
This species looks much like the Aetea ligulata ot Busk ; but it is impossible 
to be sure from the description, and Busk’s slide has dried up and nothing 
can be distinguished. 
From Naples I have two mounted specimens of an Aetea with a large and 
creeping portion, and a thick tubular prolongation which is ringed. At the 
side of the creeping part there are two pairs of appendages (PI. 24. fig. 9} 
having so much the appearance of Lepas that I proposed the name Aetea 
lepadiformis for it (Ann. Mag. Nat. Hist. ser. 7, vol. xvii. p. 13). These 
appendages are probably similar in formation to those now described ; but as 
it is impossible to understand them from dried specimens I have told 
Mr. Crossland how interesting the specimens are, and that I should like to 
have the opportunity of cutting preserved material. 
In some specimens of Aetea truncata, Lands., from Naples, there are in 
many zocecia, close to the tube which starts from the dorsal surface, a pair of 
jointed appendages ; sometimes this dorsal tube is continued as a zocecium, 
though in one or two cases it produces a minute zocecium similar to the 
ordinary ones, but only about a quarter of the size. Both Smitt and 
Hincks appear to have seen such appendages, but their figures are not very 
characteristic and do not show that they are usually in pairs and jointed. 
Loe. Khor Dongonab, March 3rd, 1909. 
A specimen from the coral-nullipore reef Beacon Island, Khor Dongola, 
marked “ violet-colored Polyzoan,” is the Hydrocoralline istichopora 
violacea. 
