98 Zoological Society : — 



selves to pieces on the slightest touch, or however carefully killed." 

 In this respect it resembles a species of Annelide belonging to the 

 group of vermiform Aphrodisians, described by Risso as occurring 

 in the Mediterranean, under the name of Eumolpe frayilis. 

 Hah. Esquimalt Harbour, Vancouver Island {Mus. Brit.). 



5. Nereis foliata, Baird. 



This Nereid is of a dark grey colour above, and of a lighter hue 

 underneath, somewhat iridescent. It is 15 inches in length, and 

 at the broadest part is about ^ an inch in breadth. It tapers gradu- 

 ally tovrards the tail, which terminates in two short, blunt, caudal 

 styles. The first or occipital segment of the body is about twice the 

 length of the second. The tentacular cirri are unequal, and vary 

 in length : in the largest and best-developed specimen the longest 

 are only about as long as the first tveo segments ; while in another 

 specimen, nearly of the same size, they are nearly equal in length to 

 the first four segments, and in one or two small specimens, not a 

 third the length of the two just mentioned, these cirri are equal in 

 length to at least eleven of the first segments of the body. The 

 shorter ones are only about half the length of the first segment of 

 the body. The feet are well developed, the superior branchial ap- 

 pendages are large and in the form of a leaf, giving the animal at 

 first sight the appearance of a species of Phyllodon. The antennae 

 are shorter than the palpi, which are strong and conical in shape. 



Hub. Esquimalt Harbour, Vancouver Island (Mus. Brit.). 



This species approaches very nearly to Nereis virens of Sars, from 

 Newfoundland {vide Middendorf, Sibirische Reise, Annulos. 6, 

 tab. i. figs. 2-6). 



6. Nereis bicanalictjlata, Baird. 



This is rather a small species, about 2 inches long, and 2^ lines in 

 breadth. It is of a dull white colour, and is remarkable for having 

 a channel running down both the dorsal and ventral sides. The 

 channel on the dorsal surface is rather deep, commencing from the 

 eleventh ring, and continues to the tail ; the channel itself is quite 

 smooth, the divisions or rings of the body not showing on its surface. 

 On the ventral surface the channel shows marks of the divisions or 

 rings into which the body is divided. The head is small, the an- 

 tennae about equal in length to the palpi, and the tentacular cirri 

 are equal to about five or six rings of the body. The upper portion 

 of the body is rounded, and not channeled ; and the tail terminates in 

 a round, blunt knob, without caudal filaments. The feet are rather 

 small, but are rendered unusually distinct from the peculiar manner 

 in which the rings or divisions of the body are interrupted by the 

 channel running along the centre of the body. It tapers very gra- 

 dually, and almost imperceptibly for some time, from the head to the 

 tail. 



Sab. Esquimalt Harbour, Vancouver Island {Mus. Brit.). 



7. Glycera corrugata, Baird. 



This Annelide is about 4 inches in length, exclusive of the pro- 



