REPORT ON THE REEF-CORALS. , 75 
2. Huphyllia rugosa, Dana. 
Euphyllia rugosa, Dana, Zoophytes, p. 166, pl. vi. fig. 3. 
a », Milne Edwards and Haime, Cor., ii. p. 194. 
A very fine and large example of this species was collected. The transverse 
wrinkles and the carinato-striate costee throughout the length of the calicles serve as 
ready characters by which to distinguish it from the Huphyllia glabrescens, but a very 
close approach is made to it in the larger form of the latter species. 
Locality.—Amboina. 
3. Huphyllia turgida, Dana. 
Euphyllia turgida, Dana, Zoophytes, p. 166, pl. ix. fig. 9. 
Fe Milne-Edwards and Haime, Ann. d. Sci. Nat., ser. 3, vol. x. p. 268, pl. vi. 
fig. 1. 
This species is very variable in the shape and size of its calicles. They may 
be from about 2 to 8 cm. in diameter, and either circular, oval, triangular, or much 
elongated. The septa are very thin and numerous, and the axial cavity is rather 
shallow. An excellent figure is given by Milne-Edwards and Haime. 
Locality.—Shore, Somerset, Cape York. 
4. Euphyllia striata, Milne-Edwards and Haime. 
Euphyllia striata, Milne-Edwards and Haime, Cor., ii. p. 194, pl. D. 2, fig. 1. 
A single specimen of this species was obtaimed. It is very close to the low and 
stumpy form of Huphyllia glabrescens, but the calicles are much larger, more sinuous 
at the edges, and less frequently divided, and the septa are much more numerous. 
Locality.—Shore, Somerset, Cape York. 
Genus 5. Physogyra, Quelch. 
Physogyra, Quelch, Ann. and Mag. Nat. Hist., vol. xiii., 1884, p. 293. 
Corallum compound, form massive, of very light structure, having the calicles in long 
sinuous, more or less mzeandroid series, with their walls fused throughout so as to form 
a simple, very thin line of separation between the series. Calicinal centres generally 
distinct, indicated by the curving of the septa. Costee almost entirely absent. Epitheca 
very slightly developed. Septa thin, fragile, very prominent, distant; edge entire. 
Columella absent. Endotheca well developed, vesicular; the dissepiments continuous 
between the septa from the centre of the calicle to the wall, very convex above, rather 
far apart above each other, thus forming wide interseptal chambers. Owing to this great 
