Happon Ann Durrpen—Some Actiniaria from Australia and other Districts. 151 
PROTACTINLA (M*Murrich, 1891) = PROTANTHE (Carlgren, 1891). 
CoraLtimorPHip# (Hert., 1882). Corynacripa (Andres, 1883). 
CORYNACTIS (Allman, 1846). 
Corynactis Australis, n. sp. 
(Pl. vu., figs. 6—10.) 
Form.—As is characteristic of other species of this genus, the form is very 
variable. Usually salver-shaped when fully expanded, the base may extend 
beyond the disc, or vice versd; when the disc is not fully expanded, the 
column may be club-shaped or nearly cylindrical. We are unable to determine 
the arrangement of the tentacles either from the drawings or the specimens 
themselves. Those of the peripheral row are the longest, and there are three or 
four distinct rows decreasing in length centripetally. The small radial tentacles 
do not appear to have any definite arrangement. Mouth on a_ prominent 
cone. 
Colour.—Very variable. Column pink, buff, brown, or orange, or of inter- 
mediate tints, sometimes with a greenish tinge. A green ring round the capi- 
tulum is often present; the ring may be yellow in colour, or apparently 
absent. Disc usually of a darker shade than the column, but may be bright 
green. Mouth generally greyish. ‘Tentacles, stem usually greyish green or 
dark brown, occasionally translucent white or pink; knobs mostly bright orange, 
but may be translucent white, pink, or green. 
Some of the combinations which may occur are detailed in the following 
list :— 
Column. Capitulum. Dise. Tentacles stem. Knob. 
A. Greenish. Emerald green, Bright green. Pale carmine. Pale carmine. 
B. Pink. Emerald green. Pinkish, Pale green. Pale carmine. 
C. Pale carmine. White? Pink. Grey. Orange. 
D. Pale orange buff. Bright orange buff. Grey. Bright orange. 
E. Brown. Brown. Dark brown. Brown. Orange. 
F. Translucent pink. Pale green. Orange buff. Brown. Pink. 
G. Pinkish orange. Lemon yellow. Orange pink. Translucent white. Pink. 
Dimensions.— Average height of column in living specimens, 8°5 mm. ; average 
diameter of oral disc, 9 mm., according to Prof. Spencer’s drawings. . 
Locality.—Port Philip, February 2nd, 1891; January 27th, 28th; February 
8rd, 1892. 
