SONNININ^. 
287 
1. Amaltheinse, the descendants of Amaltheus coronatus. Genera — Amaltheus, 
Pleuroceras. 
2. Sonnininse, the later branch, the descendants apparently of a form not quite 
so advanced, biologically, as Amaltheus coronatus. Genera — Ziircheria, Sonninia, 
Witchellia, &c. 
Suh-famihj — Sonninin^, S. Buckman. 
1869. Haepoceeas, Waagen (pars). Geogn. Pal. Beitrage, Bd. ii, Heft 3, p. 245. 
1878. Amaltheen (Fissilobati, pars), Neumayr. IJiiverm. Ceph. ; Jahrbuch k. k. 
geol. Reichsanstalt, Bd. xxviii, 
Heft 1, p. 61. 
1878. Haepoceeas, iVewwa^r (pars). Ibid., p. 67. 
1879. SoNNiFiA, Bayle. Bull. Soc. Geol. France, 3e ser., t. vii, p. 92. 
1880. j^Igoceeatid^, Section II, Haepocebatites (pars), Wright. Monogr. 
Lias Amm., Pal. Soc, p. 246. 
1884. Haepoceeatid.!; (Hammatoceeas, pars), Zittel. Handb. Pal., Bd. i, 
Abtb. 2, Lief, iii, 
p. 461. 
1885. — (Haepoceeatin^ and Lissoceeatin^, pars), DouvilU, 
Zone Am. Sowerbyi ; Bull. Soc. Geol. France, 3e ser., 
t. xiii, p. 14. 
1885. Getjppe des Hammatoceeas Soweebti, Saug. Neues Jabrbuch fUr 
Mineral., &c., Beil.- 
Bd. iii, p. 654. 
1885. — — Ogeeieni, (pars). Ibid., p. 659. 
The term Sonnininse is proposed as a sub-family name for a series of genera 
which appear to have sprung from an early form of the same radical stock as 
the Amaltheinse ; taken as a whole they copy the features of the earlier series. 
The sub-family will include the genera Zurcheria, Douville, Sonninia, Bayle, 
Witchellia, S. Buckman, and certain new genera which will be proposed as 
occasion requires. 
The species and genera of the Sonnininx will really form by far the most 
important part of my Monograph. The series is a very large one ; the specimens 
are well preserved, and exhibit an almost endless variety. The genus Sonninia 
contains the largest number of species, many of which are of grand size, and the 
greater number of them hitherto undescribed. I have amassed a fine series, 
containing several hundred large specimens of this grand genus ; and they show 
some remarkable modifications. 
. The number of species is a most striking feature connected with the SonnininaSf 
