58 DR J. STEPHENSON ON 
I have referred in the Introduction to the several Lumbricilline features exhibited 
by this worm. 
Enchytreus sabulosus, Southern. 
This species was discovered by SourHERN (12) in Dublin Bay, living under stones 
and amongst the gravel at high-water mark. ‘This is apparently the only record of its 
occurrence ; I therefore give a few notes on Scotch specimens which I believe to be 
identical with it. 
The worm was found at Wemyss Bay, under stones near high-water mark, at a spot 
where fresh water was running to the shore. 
Length about 2 inch (18 mm.); colour white. Anterior end tapers somewhat, 
posterior end blunter. Prostomiwm bluntly conical. Segments forty-six to forty-nine. 
Clhitellum on segments xii.—xiii. 
Setz of the form usual in the genus, in length ‘071 to (088 mm. Their peculiarity 
lies in the number per bundle—with few exceptions three in the ante-clitellial, two in 
the post-clitellial bundles ; occasionally there are three setze in a post-clitellial bundle, 
and young replacing bundles are sometimes seen near the functioning bundles. In 
seoment xii. there are no ventral setee, and the dorsal sete are in this segment two per 
bundle. The fact that in my specimens the post-clitellial bundles have only two sete 
is the most important difference from SouTHERN’s description; for he states that the 
number is regularly three throughout the body. 
Septal glands bulky, the last pair being the largest. Peptonephiidia (Pl. IL. 
fig. 15) as small hollow tubes, bent once or twice, or slightly coiled, extending backwards 
as far as the first pair of septal glands, and opening anteriorly close together into the 
pharynx on its dorsal wall. I have no note of any special peculiarity of the chloragogen 
cells, which begin in segment vii.; SourHERN considers their large size and their 
oil-drops to be of value as a specific distinction. 
The dorsal vessel begins in segment xv. (junction xvi. and xvil., SOUTHERN). The blood 
is colourless. The cwlomic corpuscles are irregular, ovoid or pear-shaped, granular, with 
a clear nucleus. The nephridia are as described by SouTHERN ; they begin in segment vii. 
The cerebral ganglion is one-and-a-half times as long as broad (PI. II. fig. 15), its 
sides nearly parallel, its posterior end rounded, not indented. Two small dark spots 
may be seen on it, as in specimens of EH. albidus; but they are not so conspicuous in 
the present form. The ventral nerve-cord shows ganglionic swellings in segments i1., 1iL., 
and iv.; thereafter the swellings are slight or absent, and the cord, as seen in the living 
animal, is of the same thickness throughout. 
The sperm morule may bulge forwards as far as the level of the sete of segment 
vill. The sperm funnels, about four times as long as broad, are as described by 
SouTHERN. The vas deferens is a stout tube, not much coiled, extending back as far 
as segment xvill. The glands round the male aperture are constituted by a number of 
separate aggregations of cells, and do not form a single penial bulb. 
