50 
A. distans, and A. appendiculatus? Of these, the figures of the second and 
third exhibit undoubted evidence of Tryplasma characters in the presence 
of spiniform septal lamellae, thickened walls, and characteristic features of 
the tabulae. 1 2 In the longitudinal section of A. distans the septal spines are 
visible in the intertabular spaces or old visceral chambers; in the horizontal 
section the thick tooth-like terminations of the septal spines send off delicate 
linear filaments when a cycle impinges on a tabula in precisely the same 
manner that the similar organs do in some of our indigenous species. In the 
horizontal section of A. appendiculatus a like feature is observable, whilst in 
the longitudinal section of the same coral 3 both the septal spines and 
vesicular tabulae are visible, the vesicles long and lenticular ; radiciform 
processes are also present. 
1883. — The late Prof. Ferdinand von Poemer proposed the name 
Coelophyllum 4 5 * 7 8 to take the place of C atop hy l turn, Dana, already referred to, 
on the ground that it is altogether doubtful what Dana intended to include 
in his genus. As his type, Poemer selected Schliiter’s Calophyllum pauci- 
tabulatum, and added to its definition the important statement that the 
radiating lamellae in his specimens were finely denticulated and delicately 
notched, thus supporting the otherwise general Tryplasma- like appearance 
of this coral. 
1885. — Mr. F. Maurer, in his “Fauna of the Waldgirmer Limestone 
near Griessen,” referred two corals to Acanthodes, Dybowski, A. retinens /' 
and A. past hiatus? but the illustrations do not satisfactorily remind me of 
Acanthodian characters. Under Calophyllum is jfiaced another coral ( C . 
serratum ) which may be a Tryplasma, presenting the sectional transverse 
appearance of the genus in which the septal lamelloe are united hy a thick 
peripheral zone of stereoplasma, with the characteristic toothed inner 
free edge. 
1891, — In his “ Chart of the Pugose Corals,” Mr. W. H. Sherzer s 
included in Tholidophjllum, Lindstrom, both Tryplasma and Acanthocyclus, 
Dybowski. He also combined with these “ Scarithodes ,” Dyb., a name I am 
quite unacquainted with, unless it is a misprint for Acanthodes. 
1 Lindstrom — Beitrage Pal. China (Richthofen’s China, IV), 1883, pp. 62-63. 
2 Lindstrom — Ibid., t. 6, f. 1 and 5. 
3 Lindstrom — Ibid., t. 6, f. 7 and 8 (non f. 1 1 and 12). 
4 Roemer — Lethsea Pal., 1883, 2 Lief., p. 409. 
5 Maurer — Abhandl. Gross. Hessischen Geol. Landessanstalt Darmstadt, 1885, I, Heft 2, p. 80, t. 1, f. 5-7. 
s Maurer — Ibid., p. 82, t. 1, f. 8, 8a. 
7 Maurer — Ibid., p 89, t. 1, f. 22, 22a. 
8 Sherzer — American Geol., 1891, VII, No, 5, pp. 290-291. 
