REPORT ON THE REEF-CORALS. 137 
11. Pungia scutaria, Lamarck. 
Fungia scutaria, Lamarck, Hist. Anim. sans Vert., ii. p. 236, 1816. 
Pr 5 Dana, Zoophytes, p, 301, pl. xix. fig. 10. 
55 iy Klunzinger, Cor. roth. Meer, ili. p. 65. 
A very fine series of specimens of this species was obtained. In some specimens the 
corallum is much elongated, while in others it is subcircular or subtriangular with 
rounded edges. They are usually much thickened, especially so with age. The coste 
are generally very distinctly radiate to the very centre, close and prominent, divided 
into rather blunt, papilliform teeth, which are very closely crowded, ‘The septa are rather 
thin, subentire or finely toothed, the teeth being small, crenulate, or broadly angular, 
especially towards the margin of the corallum. In other specimens, however, the coste 
are less prominent and less crowded, with fewer, sharper spines, which are more or 
less sparse over the centre, while the septa become thinner and more sharply and finely 
toothed. On account of these characters it must be observed that the species becomes 
very similar to Fungia paumotensis, and it is a matter of great difficulty to distinguish 
between them. 
Fungia carcharias, Studer, is apparently identical with this species. 
Figures, apparently of this species, showing the form of the corallum, are given both 
by Seba’ and by Rumphius,’ while a very good description is given by Dana. The dis- 
tinction given by Milne-Edwards and Haime’ between this species and Mungia pau- 
motensis is confusing, and seems to be the reverse of what is really the case. 
Locality.—Tahiti. 
12. Fungia paumotensis, Stutchbury. 
Fungia paumotensis, Stutchbury, Trans. Linn. Soc. Lond., vol. xvi. p. 485, pl. xxxii. fig. 6, 1833. 
= ‘ Dana, Zoophytes, p. 300, pl. xlix. fig. 8. 
It is with extreme doubt that I have retained this species. It seems to me to be 
only a variety of Fungia scutaria with the corallum more elongated and flattened, with 
the costee less prominent and less closely placed, bearing smaller, sharper and more distant 
papillee less radiate on the centre, and with rather thinner septa, which are subentire or 
lined with extremely fine teeth. Numerous specimens of the species were obtained, 
some of which are more or less intermediate in characters between the more defined 
forms of the two species. Professor Martin Duncan has already pointed out the 
extremely close relationship of the two species.* 
Localities.—Tahiti ; Samboangan, Philippines. 
1 Thes., iii. pl. exii. figs. 28, 29, 30. 2 Herb. Amboin, vi. pl. Ixxxyiil. fig. 4. 
5iCor., 111. p. 17. 4 Journ. Linn. Soc. Lond. (Zool.), vol. xvii. p. 146. 
(Z00L. CHALL. EXP.—PART XLVI.—1886.) Zz 18 
