298 SIR SIDNEY F. HAEMEE ON 
Alysklium, Busk, 1852^, p. 13. — Genosyntypes, A. parasiticum, liusk, n. sp., and 
Eucratea lafoniii, Audouin, 1826, p. 242; 1828, p. 74. Geuolectotype, 
Alysidium parasiticum, see Norman, 1909; J. L. S. xxx. p. 295. 
Amastigia, Busk, 18523, p_ 40.^Genotype (the only species), Amastujia nmhi, P)Usk,_ 
n. sp. 
Anderssonia, Kluge, 1914, p. 617.^Genotype (the only species), Anderssonia antarc- 
iicii, Kluge, n. sp. Synonym of Amastir/ia, Busk, 1852 ; but pre-occupied by 
Andersonia, Boulenger (Pisces), 1900, A. M. ISf. H. (7) vi. p. 528, and by 
Anderssonia, Strebel (Mollusca), 1908, Wiss. Ergebn. Sohwed. Siidpolar-Exp.. 
vi. 1, p. 12. 
Anc/uinaria, Lamarck, 1816, p. 142. — Genotype (the only species definitely men- 
tionei), Anguinaria. spatidata, Lmk., nom. nov. Lamarck gives Sertidaria 
anguina, L. (1758, p. 816) as a synonym, from which it appears that the 
introduction of a new trivial name vcas unnecessary. Hincks (1880, p. 2) 
states that Anguinaria was mentioned, but not defined, by Lamarck in 1812 ; 
but on consulting this work (Extr. Cours Zool. Mus. Paris, p. 24) it is found 
that Lamarck did no more than mention the generic name in the French, 
form " Anguinaire." Synonym of Aeiea, Lamx., 1812. 
Angidaria, Busk, 1881, Q. J. M. S. xxi. p. 14. — Mentioned as an abyssal genus with- 
a web-like expansion at the angle of most of the bifurcations. No species is- 
indicated, and the genus does not seem to have been referred to by Busk in, 
any later work. 
Avicella, Van Beneden, 1848, BuU. Acad. roy. Belg. xv. 1, p. 74. — Genosyntypes, 
5 species, all referable to Eitgula, Oken, 1815. As this is the case, there seems 
to be no object in selecting a genotype, which it would be difficult to do in 
view of uncertainty as to the identification of some of the species described. 
Avimlaria (Thompson, MSS.), Gray, 1848, pp. 105, 146. — Genotype (the only 
BT^ecies), Avicularia fahellata (Thompson, MSS.), Gray, n. sp. Synonym of 
Bugula, Oken, 1815 ; but pre-occupied by Avicularia, Lamarck (Arachnida), 
1818, An. s. Vert. v. p. 107. 
Bactridium, Eeuss, 1848, Naturwiss. Abhandl. (Haidinger), ii. p. 55. — Genosyntypes, 
B. hagenowi, Reuss, n. sp., and 3 other fossil species. Genolectot3'pe, selected 
by D'Orbigny, 1852, P. F. T. C. p.^363, and A. S. N. (3) xvii. p. 289, Bactridium 
hagenowi. This species does not seem to belong to the Cellularine assemblage, 
but the other three species described by Keuss were regarded by D'Orbigny as 
species of Canda. 
Beania, Johnston, 1840, A.M. N. H. v. p. 272. — Genotype (the only species), Beania 
mirabilis, Johnst., n. sp. See also Johnston, 1847, p. 371. 
Bicellaria, de Blainville, 1830, p. 423; see also 1834, p. 459.— Genosyntypes, 
7 species, including " B. ciliata, Ellis" (Sertularia ciliata, L., 1758, p. 815). 
In his revision of genera, Gray (1848, p. 112) includes B. ciliata by itself in 
Bicellaria ; and, although he gives no diagnosis, by placing Sertularia ciliata, 
L., at the head of his synonymy, he may fairly be considered to have indicated 
