TAKEN OFF THE COAST OF NORTHUMBERLAND. 297 
more than an inch to the size of a crowquill. It can be traced 
backwards to within Ift. 8in. of the caudal end of the fish, 
gradually approaching the ventral border, and terminating in a 
blunt blind extremity, Pl. II. figs. 2 & 3c. Thecanal, in which 
the cecal prolongation is lodged, is prolonged for an inch or two 
beyond the end of this latter, and contains several small blood- 
vessels, and the cellular coating of the cecum arranged in cords, 
the vessels being gradually lost by passing backwards and out- 
wards into the surrounding muscular tissue, the cellular cords 
being attached to the sides of the termination of the canal. 
The anterior main part of the stomach, when laid open, was 
quite empty, the inner surface of the cesophagus and stomach as 
far as two inches below the pylorus perfectly uniform and smooth ; 
from the point here indicated, the upper wall of the stomach 
presents the gradual beginnings of a few longitudinal plice, on 
tracing which backwards they are found to increase in number 
until, at five inches in front of the anus, the whole inner surface 
of the tube is provided with them. They are continued on in 
the stomachic cecum to within two or three inches of its termi- 
nation. At about halfway along this cecum was found a small 
quantity of the spawn of some fish partially digested, several of 
the ova being still entire ; a little way in front of these was an 
angular bit of cinder. 
The pylorus, fig. 3d, coming off as above mentioned from the 
most enlarged part of the stomach, extends for only 1}in., when 
it becomes suddenly constricted, and presents internally the usual 
circular valve. 
The duodenum, figs. 2 & 3 e¢, beyond, is a cylinder of about 
lin. in diameter and 1ft. in length, perforated all round by very 
numerous circular openings, the orifices of the pancreatic ceca, 
which measure about 3 inch in diameter and 1 inch in length, 
and completely mask the whole duodenum. This part of the 
tube extends forwards, lying parallel to and beneath the stomach, 
and overlapped by the posterior lobes of the liver for about 
4in., and then, emerging as it were from the pancreatic caeca, is 
continuous with the remainder of the intestine, figs. 2 &3/f f, 
which then is suddenly bent backwards and runs along the 
VOL. I. RT 
