500 PROF. A. UBNfDY AND MISS L. M. FEEDERICK ON 
Previously known Distribution. Indian and European Seas [Lamarcli) ; 
Torres Strait [ChaUenger) ; New South Wales [Lendenfeld, Whitelegge). 
Register Nos. and Locality. II. 3, II. 14, II. 17, Wooded Isle. 
Chalina sp. 
The single specimen, which measures 40 mm. in height and has an average 
diameter of 10 mm., is erect, shortly digitiform, slightly compressed, with a 
single round osculum, 3 mm. in diameter, at the apex, to which two long 
oscular tubes converge. Surface smooth, minutely punctate ; inhalant pores 
close-set, about 0'04 mm. in diameter. Texture firm, compact, resilient. The 
specimen is almost black on the outside and brown inside, owing to the 
presence of numerous pigment granules. 
The skeleton is very regular ; a transverse section shows numerous parallel 
primary fibres, aboiit 0'06 mm. in diameter, containing a core of well-developed 
spicules, usually arranged multiserially and surrounded by a thick coating of 
spongin. The primary fibres are connected crosswise at very frequent 
intervals by secondary fibres of less than one spicule's length and usually 
with only a single spicule in the axis. A few loose spicules are scattered 
between the fibres. The spicules at the ends of the primary fibres pierce 
the dermal membrane, which is also supported by a close-meshed network of 
unispicular fibre. 
Spicules : — Oxea ; fusiform, slightly curved, gradually sharp-pointed, 
measuring about 0"14 by 0'007 mm. 
Register Mo. and Locality. III. 1, Wooded Isle. 
Pachychalina sp. ? 
There is a small, delicate fragment, light brown in colour, which evidently 
belongs to this genus. 
Register Wo. and Locality. II. 10, Wooded Isle. 
30. Ceraochalina multiformis Lendenfeld var. manaaeensis Bendy. 
(For literature and synonymy vide Dendy [1905].) 
We identify with this variety four pieces' which have apparently formed 
part of an erect, flattened, lamellar specimen, with an irregularly undulating 
and proliferating surface. The largest piece is 83 mm. high and 55 m;n. 
wide, and the thickness of the lamella is about 6 mm. The surface is 
glabrous, and the thin dermal membrane is pierced by numerous inhalant 
pores. The oscula, which measure about 2 mm. in diameter, are fairly 
numerous and scattered, but confined almost entirely to one surface of the 
lamella, while some are marginal in arrangement. The colour in spirit is 
dirty greyish violet; texture firm, rather tough and resilient. 
The skeleton arrangement and spiculation agree very closely with those of 
the type of the vai-iety, so no description is necessarJ^ 
