REPOET ON THE TIJNICATA. 
405 
The posterior end is long and pointed, giving the body as a whole a fusiform shape 
(see PL XLVIII. fig. l). The apertures are distinctly marked. The branchial is 
triangular (PI. XLVIII. fig. 3) and lies in an elliptical depression, surrounded by a 
raised margin cleft into a number of segments (PI. XLVIII. fig. 3). It is rather a small 
aperture, and the apex of the triangle points posteriorly, the base being next to the 
peduncle. The atrial aperture seems larger, but unfortunately it is torn in the only 
specimen of the species. It was apparently transversely ovate in shape, and was sur- 
rounded by a raised margin. 
The tubercles on the anterior end of the ventral edge of the body, opposite to the 
branchial aperture (PL XLVIII. fig. 1), are the only marked processes of the test. The 
other smaller projections are placed chiefly along the ventral edge of the body and at 
the posterior end. 
The branchial sac (PL XLVIII. fig. 2) is of the usual Culeolid structure. It is not 
unlike that of Culeoliis perlatus, but the meshes are more elongated vertically in the 
present species. The branchial folds are fairly well-marked (PL XLVIII. fig. 2, hr.f.), 
and the usual spicules are present in the internal longitudinal bars. 
The tentacles are fairly large, but they are sparingly branched (PL XLVIII. fig. 4). 
Subfamily 2. CYXTHiNiE. 
In this group of the Cynthiidm additional specimens of two previously known species 
of Cynthia have to be recorded. In the case of one of these species [Cynthia pallida, 
Heller) the new specimens extend the known geographical range of tlie species, and also 
its bathymetrical range, but in the other case {Cynthia payneterisis, Herdman) the 
additional specimens are from the same locality as those previously examined. 
Cynthia pallida, Heller. 
Two additional specimens of this species have been sent to me for description. In 
the one from Station 192 the body is much flattened, the apertures are not far apart, 
they are sessile, but not inconspicuous. The colour is pale white, and hyaline on the edge. 
A little sand adheres, chiefly on the left side and the posterior end of the right side. 
The long convoluted yellow ovary shows through on the right side of the body. The 
length is 3 cm., and the breadth (dorso-ventrally) is 3*5 cm. 
The test is thin and semi-transparent. It contains many spicules ; some of these are 
large, while smaller ones are found in the vessels as in the case of Cynthia papietensisd 
The mantle is rather thin, and adheres to the inner surface of the test. It is full of large 
fusiform spicules. 
1 See this Report, part i. p. 144, pi. xvii. fig. 14. 
