62 
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DESCRIPTION OF THE PLATES. 
Da eACT Hy XGXe LAVe 
Figs. 1-4. Aglaophenia lophocarpa. 
Natural size. 
Portion of pinna, magnified ; lateral view. 
Portion of stem with pinne, magnified ; front view. 
Corbula, magnified. 
Figs. 5-9. Aglaophenia apocarpa. 
Natural size. 
Portion of a pinna, magnified ; lateral view. 
Portion of stem with pinnz, magnified ; front view. 
Corbula, magnified. 
Part of a leaflet of a corbula showing the lateral nematophores; still further magnified. — 
PLATE XXV. 
Figs. 1-4. Aglaophenia gracilis. 
Natural size. 
Portion of a pinna, magnified ; lateral view. 
Same, front view. 
Portion of stem with pinna, magnified; oblique view of pinna. 
Figs. 5-9. Aglaophenia rigida. 
Entire colony, natural size. 
Portion of pinna, magnified; lateral view. 
Same, front view. 
Corbula, magnified. 
Part of one of the ridges of the corbula, still further magnified. 
PLATE XXVI. 
Figs. 1-8. Aglaophenia distans. 
Entire colony, natural size. 
A portion, magnified. 
Portion of the hydrotheca, still further enlarged to show the anterior tooth-like process. 
A hydrotheca differing somewhat in form from the normal hydrotheex, but associated with these 
the same colony ; magnified. 
Orifice of hydrotheca viewed from above. 
Portion of a pinna with two hydrothece viewed in front; magnified. 
Corbula, magnified. 
One of the leaflets of a corbula, still further magnified. 
(a) Peduncle of leaflet. 
(0) Supracalycine nematophores but slightly altered. 
(c) Mesial nematophore greatly enlarged and altered in form. The slightly altered hydrotheca 
is seen included between the supracalycine and mesial nematophores. 
Figs. 9,10. Aglaophenia sigma. 
Natural size. 
10. Portion of a pinna, magnified. 
PACT XoXo Vilas 
Figs. 1-3. Aglaophenia bispinosa. 
An entire colony, natural size; front view. 
The same, lateral view. 
Distal portion of the stem, magnified. 
