Dr. J. E. Gray on Anchoring Sponges. 309. 
Prats XI. 
Fig. 1, Spp Candeiana, d Er 95 diams. : a, lateral aspect ; 
: view, showing the apert 
Fig. 2. riesci fusca, n. Sp., X 95 Su. a & c, lateral aspects ; 
: , end view, showing aperture. 
Fig. 3. irg e the test of the same, more highly Me speed z 200 
iams.: a, portion of the test mounted in Canada bal and 
ce by transmitted light; 5, similar Fife decalcified by 
x nd of strong acid before mounting, the chitinous matrix 
alon 
Fig. 4. Trochammina sama, P. & J., x 40 diams. 
Fig. 5. Trochammina i nflata, var. macrescens, X 90 ere : a & c, lateral 
à pe ape 
Fig. 6. Lagena gracillima, Seguenza, x 100 diams.: a "rs c, lateral views; 
: , end view, showing one of the ee 
Fig. 7. Lagena Lyellii, Seguenza, x 95 dia 
Prarx XII. 
ig. 1. pes amine t x 65 diams.: a, lateral aspect; 5, end 
showing apert 
Fig. 2. Dentalina pe D'Orb., A d pam 
Fig. 3. Marginulina glabra, D'Orb., 5 diam 
Fig. 4. Textularia globulosa, Mad. x115 dime a, lateral aspect ; 
b, end ditto. : 
Fig. 5. sec mi upon D'Orb, x 115 diams. : a, lateral aspect; 
b, end ditt 
Fig. 6. Vernevilina s spinal osa, Reuss, X 95 diams.: a, view of one of the 
ods ree fy: ; b, "im ral lateral aspect ee parties) to one of the 
end v w, showing the apertur 
Fig. 7. Bolivina “anes: D'Orbig., x x 95 diams. : a, dcl aspect; b, end 
iew and aperture. 
Fig. 8. Rotalia Beccarii, Linn., brackish variety, x 55 diams. : ig & b, su- 
perior and inferior lateral aspects; c, peripheral aspect 
XXVII.— Notes on ues 6 dog" (n a Letter to Mr. 
Moore). By Dr. J ERS. &c.* 
My Dear Moon, 
Mrs. Gray, in was very much pleased with the additions 
to and alterations of the Museum, since she saw it five years 
urpo 
usn m l the ss penes home from Portugal, and like 
those of Holtenia Carpenteri from the North Sea, had the 
* Read at the Biological Section of the British Association, Sept. 1870. 
