Il 
on one side of the stem are about 1,6 mm. apart. The surface of the ampullae is generally 
rather uneven. 
Facies /rregudaris. Hydrophytum very irregularly flabellate; about 45 mm. in height, 
surface smooth; cyclosystems bracket-like, not so broad and further apart than in the preceding 
facies, to which it is otherwise closely related. 
d. S. eximius fac. minor. Plate I, figs. 7 and 8. 
Stat. 80. 2°25’ S., 117°43 E. Strait of Makassar. 34 M. Numerous pieces and small frag- 
ments. Pink. 
Stat. 117. 1° 01.5 N., 112°56' E. N. of Celebes. 80 M. 2 pieces and 2 small fragments. Pink. 
Stat. 125. Off Siau, one of the Sangir Ils. up to 27 M. 3 pieces. White. 
Stat. 133. Talaut Ils. up to 36 M. 4 fragments. Pink. 
Stat. 144. S. of Halmaheira. 45 M. Several small fragments. White and various shades of pink. 
Stat. 154. 0° 7.2N., 130°25'.5 E. N.W. of Waigeu Isl. (N. of New Guinea). 83—59 M. 4 frag- 
ments. White. 
Stat. 166. 2°28'.5S., 131° 3'.3 E. Between New Guinea and Ceram. 118 M. Several small 
fragments. White. 
Stat. 310. 8°30 S., 119° 7’.5 E. E. of Sumbawa. 73 M. 1 Ex. Pink. 
Stat. 315. N. of Sumbawa. Up to 36 M. 1 Ex. Pink. 
This facies varies to a considerable extent in its method of growth. It forms a more or 
less profusely branched flabellum and may either be very delicate or fairly stout. The branches 
do not anastomose, but in one or two instances a branch has met some other object and spread 
out over it in the form of a thin lamina and the surface of this lamina may in its turn, give 
rise to branches (Fig. 7). The height probably does not exceed 60 mm. and is often much 
less. The diameter at the base of the main stem is from 2 to 3 mm., that of the axis at the 
base of the terminal branch varies from 0,4 to 1 mm. The branches zigzag in their course, 
especially the younger ones. The colour is variable, it may be orange pink, blue pink or white; 
when pink, the edges of the cyclosystems are often of a much deeper colour than the rest of 
the coral. The surface of the white specimens is longitudinally striated; in those that are pink 
the rows of vertical canals (which form the lines) are more irregularly placed, especially on the 
younger branches, where they form no lines at all. Otherwise the surface is either smooth, or 
may bear a few short, blunt spines. The bracket-like cyclosystems (Fig. 8) grow far round the 
stem, which is often small compared with the size of the cyclosystems. Their transverse diameter 
is about 0,8 mm. and they project 0,4 mm. Successive cyclosystems on one side of the stem 
are from 1,6 mm. to 2,4 mm. apart; they are usually fairly near together when ampullae are 
actively formed. The ampullae (Fig. 8 amp.) are generally covered with blunt spines, especially 
when there are spines upon the stem. In size and method of growth this facies is allied to the 
varieties dentatus and zrregularis, but the cyclosystems closely resemble those on the most 
delicate branches of the facies a/tus. 
Facies Minor. Hydrophytum flabellate; younger branches zigzag; surface smooth or with 
a few blunt spines; not exceeding 60 mm. in height, very variable in thickness; cyclosystems 
bracket-like, often large in comparison to the diameter of the stem. 
