Miscellanea Zoologica. 535 



loured spots, which are about one-eighth of an inch from the extre- 

 mity. 



2. N. lactiflorea, of a uniform cream-colour, often dusky down 

 the middle, linear-compressed ; eyes many. (Plate XVII. 

 Fig. 2.) 



Planaria lactiflorea, Johnston, in Zool. Journ. iii. 489. 



Hab. Under stones between tide-marks — common in Berwick 

 Bay. 



Body linear, vermiform, aboutthree inches longwhen extended, but 

 very contractile and polymorphous, smooth, of a uniform cream-co- 

 lour in general, sometimes flesh-red, often dusky down the centre 

 from the opaque contents of the intestine, marked with two red spots 

 near the head, anterior to which are the ocelliform specks arranged 

 on the sides in two more or less perfectly separate clusters : the 

 eyes are unequal in size, and about 12 in number on each side : 

 mouth subterminal : anus terminal. When compressed, or other- 

 wise irritated, this species has been repeatedly noticed to exude a 

 milky fluid from its whole surface. 



There is what I consider to be a variety of this species of a red- 

 dish orange-colour, with dusky undulations down the middle from 

 the interranea. (Plate XVII. Fig 3,) It is comparatively rare, and 

 the depth of its colour may proceed from some difference in food, or 

 in its state of repletion. The resemblance between it and the Pla- 

 naria rosea of Muller (Zool. Dan. tab. 64. fig. 1, 2,) is sufficiently 

 great to suggest a suspicion of their identity, but Muller expressly 

 states that the latter is destitute of eyes. (See the Prod. Zool. 

 Dan. p. 221.) 



3. N. qiiadrioculata, of a yellow colour tinted with green ; nar- 

 row, elongate : eyes 4, remote. (PI. XVII. Fig. 4.) 



Planaria quadrioculata, Johnston, in Zool. Journ. iv. 56. 



Hab. Sea shore under stones, rare. Berwick Bay. 



Body lj inch long, soft, flattened, contractile, narrowed towards 

 the tail, of a yellowish maculated colour, with a dirty greenish in- 

 testinal line down the middle ; mouth rounded ; eyes 4, placed in 

 a square form and rather distant — The maculated appearance pro- 

 ceeds from white oviform bodies. 



4. N. melanocephala, yellow or yellowish-green, linear-elongate ; 

 head with a dark transverse spot, and 4 eyes. (Plate XVII. 

 Fig. 5.) 



Hab. Between tide marks. Berwick Bay, not common. 



Body from 1 to 1 \ inch long, narrow and vermiform, tapered at 



