Mr. A. W. Waters on Australian Bryozoa. 17 
occurs in Cellepora sardonica, W., Schizoporella biaperta, 
Mich., S. auriculata, Hass., Lepralia edax, B., Retepora 
marsuptata, Sm., var., 2. Couchiit, H., Porella cervicornis, 
M.-Edw. In my European specimens of Smittia Landsborovit 
it is extremely minute, but is somewhat larger in a New 
Zealand specimen. 
I should feel inclined to consider S. malleolus a variety 
of S. Landsborovit and some varieties with the avicularia far 
down the peristomial aperture have previously been described. 
Hab. Burmah (H.); New Zealand (W.); Green Point, 
Port Jackson. 
Smittia Napierti, Waters. (Pl. III. figs. 34, 35.) 
Snuttia Napierti, Waters, Quart. Journ. Geol. Soc. vol. xxxix. p. 438, 
pl. xii. fig. 14, vol. xliu. p. 59. 
The lyrula is directed inwards, but does not seem to be 
usually bifid, and at each side of the denticle the peristome is 
a little raised and forms an apparent sinus; the ovicells are 
usually somewhat immersed, but there is considerable varia- 
tion in this particular. 
This has small zocecia, and no doubt is closely allied to 
Smittia (Mucronella) tricuspis, H., but I still think they are 
distinct. 
Smitiia prestans, Hincks. (Pl. III. figs. 9-11.) 
Mucronella prestans, Hincks, Ann. & Mae. Nat. Hist. ser. 5, vol. x. 
p. 168, pl. vil. fig. 1; Waters, Quart. Journ. Geol. Soe. vol. xii. 
. 56. 
Mucronella duplicata, Waters, op. cit, vol. xxxvii. p. 328, pl. xvi. 
fig, 54, and vol. xxxvili. p. 266, 
The Green Point specimen is without ovicells. It differs 
from the typical form in having punctures in pits generally 
over the surface, and should perhaps be separated as a variety 
on this account. 
Smittia signata, sp.nov. (Pl. III. figs. 4-6.) 
Zoarium incrusting. Zocecia separated by a thick raised 
line, usually rectangular, punctured round the edge. Peri- 
stomial orifice suborbicular, narrower below, with the peri- 
stome thick and raised; on one side of the zocecia almost 
aitached to the peristome there is a lanceolate avicularium. 
The oral aperture has a distinct sinus, probably formed by 
two lateral teeth ; the operculum is thin and is strengthened by 
a thicker raised line, taking the shape of the mandibles of 
Ann. & Mag. N. Hist. Ser. 6. Vol. iv. 2 
