MARSHALL: ADDITIONS TO “ BRITISH CONCHOLOGY.” 395 
didea will be found underneath these. When they occur 
in a peat bed, as sometimes happens, there is of course no 
difficulty in procuring them. In the latter case, they may 
be easily dug up with a spade; but the former requires a 
pickaxe and a strong arm, and the greater proportion are 
broken in the operation. Dr. Farran once found them in 
abundance at Dungarvan, perforating the remains of a 
submarine forest. 
Xylophaga dorsalis Turt.—Unst to Plymouth Sound and 
the Scilly Islands. 
Teredo norvegica Spengl.—Shetlands to Alderney and 
Sark. The most variable of the British Zeredines, the 
auricles and pallets being especially so. 
T. megotara Hanl.—-Brora, Sutherlandshire (Baillie) ! 
Var. excisa Jeff.—Guernsey. 
Var. mionota Jeff.—Jersey and Guernsey. This is the 
form which invariably drifts to the Channel Islands. 
T. fimbriata Jeff—Southport (Heathcote)! This is figured 
in Sowerby’s Index under the name of 7: palmudlata Lam., 
but the latter is a different species. 
(To be continued.) 
egg 
A colony of Cecilioides acicula Miill. in Northamptonshire. 
—A mile and a half from Kettering, on the Rockingham Road, there are 
two adjacent quarries. The surface soil, which is less than one foot in thick- 
ness, rests on a bed of limestone rock (Lincolnshire Oolite) from three to five 
feet in thickness ; beneath this is a bed of pure sand. During the last twenty 
years, the skeletons of men and horses have occasionally been discovered, 
barely covered by the surface soil. Possibly they are relics of the battle of 
Naseby. While examining one of the human skeletons, which had been cut 
into, on November 25th, 1896, I discovered a quantity of Cectlotdes acicula 
adhering to the bones, and embedded in the soil and chinks of rock beneath. 
On a subsequent examination, March 14th, 1897, Mr. L. E. Adams and I 
found the same abundance of shells all round the cutting, and especially in 
those spots where skeletons had been found. The shells had penetrated the 
rock through crevices and holes made by roots to a depth varying from two 
to four and a half feet. C. E. Wricnr, Kettering, A/arch roth, 1SQ7. 
(Read before the Conchological Soctety, April r4th, 1897). 
