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MUSEUM BULLETIN NO. 3. 
da. With maturity, however, the shell attains large size, 
becomes decidedly elongate, narrow, and pronouncedly galea- 
tiform and the fold and sinus become reversed, the latter being 
obliterated and transformed into a fold by the development 
of an axial rib and the former disappearing through bifurcation 
of the initial fold producing a sinus at the margin. The interior 
is that of Clorinda. 
For this type of clorindoid the generic name of Virgiana is 
proposed: the genus to include V. barrendei — the genotype — 
and two varieties of that species. 
Order, Protremata Beecher. 
Superfamily, Rhynckonellacea Schuchert. 
Genus, Camarotoechia Hall and Clarke. 
Camarotoechia decemplicata (Sowerby), 
1866. Rhynchonella Eva Billings, Cat, Sil. Foss. Anticosti, p. 44. 
1871, Rhynchonella decemplicata Davidson, Mon. Brit. Foss. Brach., vol. 
iii, pt. vii, p. 177, pi. xxiii, figs. 20-24. 
1900. Anabaia anticostiana Clarke, Archivos do Museu Nacional do Rio de 
Janeiro, vol. 10, 1899, Author's Eng. Ed., p, 15, pi. i, figs. 26-28. 
This shell was described by Billings in 1866, as Rhynchonella 
eva. Subsequently (1900) Doctor John M. Clarke figured a 
specimen with a size somewhat above the norm, from the Shaler 
collection at Harvard. It came from East cliff, Anticosti, and 
had been collected by the Harvard expedition of 1861. This 
specimen Clarke was not able to identify with any of the de- 
scriptions of Billings and finding that it bore considerable re- 
semblance to his Anabaia paraia from Brazil, he described it 
as A. anticostiana. A large series of specimens was collected 
at the type locality of both forms and from the descriptions 
of Billings and from specimens in the Victoria Memorial Museum, 
these were identified as Rhynchonella eva. They were also 
compared with the holotype of A. anticostiana and the two 
species were found to be identical. The genus Anabaia is 
spire bearing and is referred to the Coelospiridae. More than 
a dozen specimens of R. eva were studied by grinding and etching 
with hydrochloric add and no traces of anything resembling 
