1870. ] DUNCAN—AUSTRALIAN CORALS. 301 
margin is often wavy. ‘There are six systems, and five incomplete 
cycles. ‘The lateral crests form an angle of about 60°. 
Height of coral 1 inch. Length of calice ;°; inch. 
Locality. Muddy Creek, South Australia. No. 9, 3 miles west of 
the river Gellibrand. 
Variety bursarius with the lateral crests forming convex pro- 
minences. 
PALZOSERIS, gen. nov. 
This genus forms part of that named and described by Milne- 
Edwards and Jules Haime as Palcocyclus, and it is proposed for the 
reception of Trochoseris Woodsi, nobis (Ann. Mag. Nat. Hist. Sept. 
1864). There was some doubt concerning the genus of 7’. Woodss 
when the species was described, because its anatomical details clearly 
pointed out Paleocyclus as the genus under which it should be ar- 
ranged. But Palewocyclus is a Silurian genus, the only one of the 
Fungidz in the Paleozoic coral-faunas. A careful examination of 
the species described under the generic term Palawocyclus was under- 
taken (see Phil. Trans. Roy. Soc. 1867); and I found that they could 
not be admitted amongst the Fungidee at all, as they did not possess 
synapticule and did possess tabule. The Palewocycli of Edwards and 
Haime are truly palzeozoic forms, and are Cyathophyllide. An ex- 
amination of the species Woodsi decided my referring it no longer to 
Trochoseris but to a genus which would replace Palewocyclus more in 
name than in minute anatomy. 
The genus must be classified with the Lophoserine. 
The corallum is simple, turbinate, and pedicellate. The septa are 
numerous. ‘The epitheca is complete and dense, covering the coste. 
The columella is rudimentary. 
15. Patzoserts Woopst, Duncan. Plate XX. Fig. 7. 
Trochoseris Woodsi, Duncan. 
The corallum is fixed by a small pedicel, and is cylindro-conical and 
turbinate in shape. The calice is widely open, circular, and shallow ; 
the margin is thin. The septa are not exsert, but are delicate, 
crowded and rather subequal; there are six systems, and five cycles, 
with the half of a sixth, ineach system. The smaller septa generally 
join the larger; and these reach the central fossula. The lamine 
are marked laterally by synapticule. 
Height 54 inch. Breadth of calice =, inch. 
Locality. Muddy Creek, South Australia. 
16. Cyctosrris TenvIs, n. sp. Plate XX. fig. 8. 
The corallum is circular in outline and very thin ; it is shghtly 
convex centrally, where there is a shallow elongated fossule; and 
there is a decided concavity inferiorly, marked with numerous coste. 
The septa are distinct, distant, very slightly marked with rounded 
dentations ; and there five cycles, incomplete and in six systems. 
Height 52; inch. Breadth } inch. 
