40 DEVONIAN FAUNA. 



The true B. fiabellifer appears to be very rare both in England and on the 

 Continent. It is to be distinguished from the kindred species described by Gold- 

 fuss, as well as from those with which it is associated in Devonshire, by its tail 

 being almost circular, the upper ribs being long and wide, and the furrows being 

 wider than the ribs. The tubercles are few and vary in size. It is as well to 

 observe that the furrows are smooth, and agree in that respect with Goldfuss's 

 description, although in his later figure they are represented as tuberculated. 



D'Archiac and de Verneuil regard B. radiatus, Miinst., 1 as probably a synonym, 

 but he represents that species as striated and not tuberculated, and in all 

 probability it belonged to quite a different animal. 



B. canaliculatus, Goldf., 2 has the tail of a much less circular shape, approaching 

 B. granulatus, but with apparently a differently shaped axis. Goldfuss's description 

 of it is confused by an incorrect reference to Romer's ' Verst. Harzgeb.' B. scaber, 3 

 Goldf., has its central rib bifurcated. 



In the synonyms given above it is to be noted that De Koninck and Ferd. Romer 

 follow Goldfuss's first and inaccurate figure. 



6. Bronteus granulatus, Goldf. PI. Ill, figs. 8 — 10. 



1838. Asaphus, sp., Stein. Mem. Soc. Geol. Fr., vol. i, pt. 2, p. 358. 



1841. Beontes flabellifee, Phil. (Not Goldf.) Pal. Foss., p. 131, pi. xxxvii, 



figs. 254 a, b, c. 

 1843. Bbonteus intebmedius, ? Goldf. Neues Jahrb. fur Min., p. 519, pi. vi, 



fig. 4. 

 1843. — geanulatus, Goldf. Op. cit., p. 549, pi. vi, fig. 2. 



1843. — flabellifee, F. A. Bom. Verst. Harzgeb., p. 37, pi. xi, fig. 1 



(fide Clarke). 



1850. — alutaceus, Sandb. (Pars.) Verst. Khein. Schist. Nassau, 



p. 21, pi. ii, figs. 3 a — d (fide Clarke). 



1851. — IP Coy. Desc. Brit. Pal. Foss., p. 179. 

 1853. — Stein. Geol. Bescbr. Eifel., p. 88. 



1885. — geanulatus, Clarke. Neues Jahrb., pt. 3, Beil.-Band, p. 322, 



pi. iv, fig. 1. 

 1887. Goldius geanulatus, Tschernyschew. Mem. Com. Geol. Kuss., vol. iii, 



pt. 3, p. 15, pi. i, figs. 2, 3. 

 1887. Bbonteus flabellifee. Eth. Foss. Brit., vol. i, Pal., p. 144. 



1 1840, Miinst., ' Beitr.,' Heft 3, p. 40, pi. v, figs. 13 a, b. 



2 1843, Goldf., ' Neues Jahrb. f. Min.,' p. 550, cf. with 1839, Goldf., ' Nov. Act. Acad.,' vol. xix, 

 pt. 1, pi. xxxiii, fig. 3 b. 



3 1843, Goldf., ' NeueB Jahrb. f. Min.,' p. 549, pi. vi, fig. 5. 



