14 FOLKE FOLKESOST, MADREPORARIA. 



somewhat smaller than the primaries. The septa of the fourth cycle fuse with those of 

 the third at a slight distance from the columella; this, however, doesnot occur with abso- 

 lute regularity. The septa are covered with granulations, by which the interseptal 

 spaces are much reduced. With the exception of their highest parts, the septal edges 

 have a great number of paliform lobes, which gradually pass into the columella, which 

 consists of similar papillae. The columella, the pali, and the inner parts of the septa 

 dark brown. Costae are equal in number to septa and are visible from base upwards; 

 they are equally developed, rather broad, low, and covered with very minute granu- 

 lations. 



Though the specimen in some respects differs slightly from Duncan's type-spe- 

 cimen, its identity with P. projundus Dtjncan cannot be doubted. 



Trematotrochus zelandiae (Dtjncan 1876). 



Conocyaihw zelandiae Dtjncan 1876 (6), p. 428. 



Trematotrochus zelandiae Harrison 1911 (17), p. 1029, plates LYII, LVIII, figs. 4, 15— -17. 



Five small, worn specimens from the contents of the stomach of a blowfish, a 

 species of the genus Tetrodon. 



They agree with the descriptions and figures published by professor Duncan 

 and miss Harrison. There are, however, twenty-four costae only; as the upper mar- 

 gins of the corals are damaged, the fourth cycle may have been worn away. 



Height of the specimens: 3,9; 3; 3; 2,7; 2,2 mm; diameters of the round cali- 

 ces: 1,7; 1,5; 1,5; 1,6; 1,3 mm resp. 



Broome. 



Fam. Astraeidae. 



Lithophyllia margariticola (Klttnztnger 1879). (Figs. 20—21). 



Sclerophyllia margariticola Klunzingek 1879 (21), III, p. 4, plate I. Hg. 12. 

 42 miles W.S.W. off Cape Jaubert, 25.5.11, 70 feet, 1 sp. 



The exteriör form of the specimen will be evident from the figures. The corallum 

 has been attached to a substratum. Longer diameter 20,2 mm, height 11 mm, depth 5 mm. 



Epitheca vvell developed; only a small part of some costae is visible. 



Septa 62, thick, finely and closelv granulated, only slightly extending över the 

 margin of the epitheca. Rather large and stout, conspicuous septal teeth, generallv 

 somewhat increasing in height towards the centre of the corallum. 22 septa reach the 

 columella, which is verv marked (4,6 x 2,2 mm), dense, and irregularly papillous. Some 

 of the septa of higher cycles fuse with the larger septa near the centre. 



The specimen thus corresponds verv well to the description of Sclerophyllia mar- 

 gariticola Kluszinger, but has the epitheca still more developed. On the other hand, it 

 has very pronounced Lithophyllia-ch&rsLcbers; except the highly developed epitheca 

 in Sclerophyllia, there seems to be no real difference between the two genera. Nor is 

 Lithophyllia (incl. Sclerophyllia) a well restrieted genus, and Edwards himself, the 

 creator of Lithophyllia, says with regard to it: »Oe genre ne se distingue des Massa que 



