APPENDIX. 291 



dicates the mouth (the genital aperture) . Colour universally different 

 shades of green, sometimes tending to brown or pale carnation. 

 Numerous lighter narrow circles, at considerable intervals, with a 

 minute pale speck on the side of each, environ the body, resembling 

 faint annulations. A considerable quantity of glutinous, or almost 

 silky matter is secreted by the body.*' — Daly ell. 



Borlasia striata (page 22). 



Body linear-elongate, subcylindrical, rather fragile, smooth and 

 even, of a black colour on both surfaces, striated with many equi- 

 distant whitish lines, which run parallel from one end to the other. 

 Head continuous with the body, obtuse, with a whitish apex, and a 

 long fissure on each side. Above the fissures, on a whitish space 

 running forwards to the front, there is, on each side, a series of black 

 eyes, about six on each side ; but it would be difficult to give the 

 number exactly without destroying the specimen. Visceral aperture 

 large, oval, vrith a cream-yellow margin. There are seven whitish 

 lines on the dorsal surface, one on each side, more distinct than the 

 others, and three on the ventral surface. 



Omatoplea gracilis (page 22). 



This worm, when drawn out to its ordinary length, as in the act 

 of creeping, measures about 20 inches, while it is not more than a 

 line in breadth. Body linear or somewhat attenuated at the pos- 

 terior extremity, compressed, smooth, soft and glutinous, very con- 

 tractile, of a uniform olive-green colour, lighter on the ventral 

 surface : when viewed through a common magnifier, it is seen to be 

 marked with numerous pale cross lines, and the sides appear lighter 

 than the centre. Head obtuse, rounded in front, tinted with yellow, 

 and dotted with numerous eyes along each side, reaching to the two 

 orange-coloured spots, which are about one-eighth of an inch from 

 the extremity. 



Omatoplea rosea (page 23). 



Body linear, vermiform, about 3 inches long when extended, but 

 very contractile and polymorphous, smooth, of a uniform cream 

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

 from the opake 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 twelve 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 reddish 

 orange colour, with dusky undulations down the middle from the 

 interranea. It is comparatively rare, and the depth of its colour 



u 2 



