Miscellanea Zoologica. 537 
Planaria bioculata, Johnston, in Zool. Journ. iv. 56. 
HAB. Between tide-marks. Berwick Bay. 
Of a dusky olive colour, often tinted with purple in front, and 
paler at the posterior extremity, which is more acuminated than is 
common in the genus : body linear and narrow, from three to six in- 
ches long, a line or so in breadth ; smooth and compressed : an- 
terior extremity rounded, obscurely marked with a red spot over the 
site of the heart. In the Zoological Journal, I have described this 
species as having only two eyes, but as this appears to be a mistake, 
or at least not constant in the species, it has become necessary to al- 
ter its designation. 
When pressing a portion of the body between the plates of glass, 
I have occasionally seen some bodies escape, of a curved fusiform 
shape, acute at both ends, and marked towards one of them with a 
pale circular spot. Plate XVIII. Fig. 1. They have shown no signs of 
life, nor can I say what they are, though it has occurred to me, that 
they may be embryo-young ; and that the worms may in fact be 
ovo-viviparous. 
7- N. octoculata, of a uniform light reddish-brown colour ; eyes 
6 or 8, placed in opposite pairs on the sides of the head. Plate 
XVIII. Fig. 2. 
Planaria octoculata, Johnston, in Zool. Journ. iy. 56. 
HAB. Under stones, between tide-marks. Berwick Bay* 
Body linear, narrowed posteriorly, 3 inches long, and about Jth of 
an inch broad, compresed, of a light reddish-brown colour, with a 
darker spot in front over the hearts : eyes 6 or 8, and in some spe- 
cimens I have seen 7* three on one side, and four on the other. It 
appears therefore, that the number of the eyes, on which Mailer and 
others have reckoned confidently as a good and invariable character, 
is not to be implicitly relied on. 
8. N* purpurea, of a uniform purplish-red colour, paler under- 
neath ; eyes 6-8. (Plate XVIII. Fig. 3.) 
HAB. The sea shore under stones. Berwick Bay. 
Worm 2 or 3 inches long, smooth and glutinous. From the 
darkness of its colour, the spot indicating the position of the heart 
is scarcely visible until the body has been compressed. The num- 
ber of eyes is the same as the preceding, and liable to the same va- 
riety. In this species the ova were distinctly seen to be contained 
within the ccecal vesicles, which, when compressed, assumed a py- 
riform shape, having the slender end toward the intestines. 
