APOD A. 
421 
P. melanocepliala , Johnst. 
Under stones resting on a rich oozy sand between tide-marks at Gull 
Island, Strangford Lough, two of this species were obtained in June by Mr. 
Hyndman and myself. Both were of a pale yellow colour ; the one | an 
inch, the other 1 inch in length ; they agreed in every respect with the 
description and figures given in Mag. Zool. and Bot., vol. i. p. 535, pi. 17, 
fig. 5. 
P. armata, Templeton. 
North of Ireland, Mr. Templeton. 
Genus Planaria. 
P. cornuta, Mull., Zool. Dan.; Johnston, Mag. Nat. Hist., vol. v. p. 344. 
Aug. 26, 1844. — Mr. Hyndman dredging to-day off Castle Chichester, 
just within the entrance of Belfast Bay, and at a depth of from 6 to 10 
fathoms, took three specimens on Laminaria. Although the figures of 
this Planaria in the works cited differ a good deal, I agree with Dr. J ohn- 
ston in believing them to represent the same species. The Irish spe- 
cimens as observed at various times were more round in outline than Dr. 
Johnston’s figures, and consequently quite different from those of Muller 
in that respect. The network of reddish “ vein-like ramifications ” on a 
cream-coloured ground renders this Planaria viewed as a whole very beau- 
tiful; the multitude of dot-like black eyes on a rich white ground 
looked very elegant from the contrast of the white to the general reddish 
hue of the animal. Its progress, as Dr. Johnston remarks, “ for a worm” 
is not slow : the tentacula were always reflected backwards so as not to be 
visible in a profile view. The species has been already so fully described 
that further observations are unnecessary. One which I left gliding about 
in sea-water, apparently in perfect health, was when I looked at it again 
after eighteen hours not only dead, but almost wholly decomposed. 
P. vittata, Mont. 
A single individual of this extremely beautiful species (of which Mon' 
tagu’s two original specimens only have, I believe, hitherto been recorded) 
was taken by Mr. Hyndman and myself when dredging in Strangford 
Lough on the 1st of October — in size it exceeded Montagu’s, being 2 
inches in length and 1 in breadth. It was of a whitish cream colour with 
black lines, occasionally broken or non-continuous, disposed longitudi- 
nally over the upper surface of the body, not unlike those w'hich on a 
whiter ground render so attractive the plumage of the male silver pheasant 
Phasianus nycthemerus ) : these lines are from the delicacy of the animal 
all visible when the under side — which in itself is plain white — is next 
the spectator ; it was surrounded by a border of pure opaque white, which 
from the transparency of the entire body within, imparted a beautiful 
finish to its appearance ; the two auricular appendages which emanate 
from the anterior margin exhibit a black line along their basal half pos- 
teriorly ; eyes could not be distinguished. 
This Planaria was in form quite a proteus, and gliding with an easy 
motion folded itself gracefully over every object that came in its way. 
Having placed it in a phial of sea-water, one half of the body rested on 
the bottom and the other against the side, and being thus at the same time 
horizontal and perpendicular, and presenting throughout its entire length 
one mass of folds, of which no two. were alike in size, it looked as singu- 
lar as beautiful. Montagu’s figure, though correct, gives no idea of the 
