I20 



1 879- sithorhicnlaris Nicholson : Tabulate Corals, p. 126, pi. VI., figs. 

 2, 2 a, 2 b. 



18S3. A. siiborbicillai-is F. Roemer : Lethaea Geognostica, p. 442, pi. 



XXVI., figs. 4 a, 4 b. 

 1S85. A. suborhiciilaris Y \KY.zw : Die KoiMlleiifauiia des Oberdevons in 



Deutschland, p. 108, pi. VII., fig. 2. 

 . 1889. A. siiborbiciilaris Toll: Wi.ssenschafiliche ResuUat der zur Erfor- 



schung des Janalaiides und der Neusibirischen Inseln ausgesandten 



Expedition, p. 28, pi. IV., figs. 2 a, b. 

 1900 A. siiborbicitlaris VAX. minor YKS.<i\\ Viwd Ar;haber: Das Palaeo- 



zoicum im Hocliarmenien und Persien. Beitr. z. Palaeontologie 



und Geologie Oeslerreich-Ungarns u. des Orients, vol. XII., p. 



188, text-fig. 40. 



1902. A. siiborbicnlaris N. Lebedew : Die Bedeutung der Korallen 

 in den Devonischen Ablagerungen Russlands, p. 145, pi. I., figs. 

 6,7. • 



1938. A. siibcv'bicularis Cowper Reed : Devonian Faunas of the 

 northern Shan States, p. 20, pi. IV., figs. 3, 4, 4 a. 



1912. } A. suborbiciilaris Mansuy : Elude Geologique du Yun-nan 

 oriental, Paleontologie, p. 64, pi. XL, fig. 9, pi. XII., figs, r a, b. 



" Corallum forming masses of considerable size and variable form, con- 

 ■sisting of concentrically superposed layers, attached parasitically to some 

 foreign body, and having an elevated surface. Corallites very oblique, com- 

 pressed, mostly subtriangular, with a long convex and two short concave 

 sides, but very variable in form, though never regularly polygonal or cylind- 

 rical. Long diameter of the tubes about one-third of a line. Wall 

 moderately but not excessively thick, not incrassated towards the termina- 

 tions of the tubes, and pierced by few remote mural pores. Septa represented 

 only by a single longitudinal ndge, which does not appear to be constantly 

 present. Tabulae numerous, close-set, horizontal, complete." 



The above spec'fic diagnosis of this species was given by Nicholson who 

 confined the species-name to the gibbous form, composed of successive con- 

 centric strata enveldping some central foreign body ; this author hence te^ided 



