426 On a new Cestode Sc. from Spitsbergen. 
Echinorhynchus longicollis, Villot, 1875. 
The body of a turnstone (Arenaria interpres), preserved 
in spirit, was submitted to the writer to be examined for 
internal parasites. In the upper part of the intestine there 
were a number of cestodes of one or two species, too poorly 
preserved to be identified. In the lower portion, for some 
three inches above the origin of the ceeca, were found several 
specimens of the above-mentioned Echinorhynchus. At thie 
point of attachment of each worm there was a conspicuous 
nodular swelling on the external surface of the wall of the 
intestine. Two of the worms were attached at the same 
level, so that the two nodules, viewed from the exterior, at 
first looked like a paired structure proper to the bird’s 
intestine. Each nodule was filled with dense material, in 
which the proboscis of the worm was firmly embedded. 
Echinorhynchus longicollis does not seem to have been 
fully described, and its proper systematic position remains 
uncertain. lLihe (1911) suggests that it perhaps belongs 
to the genus Arhythmorhynchus or to some closely-related 
genus. In <Arhythmorhynchus the proboscis is highly 
characteristic, having a swelling in the middle of its length 
and remarkable local variations in the form and size of the 
hooks. There is also a characteristic swelling of the 
anterior portion of the body. These peculiarities are absent 
in the present material. The proboscis appears to be nearly 
cylindrical and the hooks of almost uniform size, so that it 
appears impossible to assign the species to Arhythmorhynchus. 
The condition of the material, however, scarcely warrants an 
attempt to give a new description. 
HIRUDINEA. 
Two leeches were obtained by dredging in Klaas Billen 
Bay, and these appear to belong to the following species :— 
(1) Abranchus scorpii (Malm), taken at about 15 fathoms; 
(2) probably Pontobdella muricata(L.). The latter is a very 
small individual, and does not show the characteristic warty 
papillz of the skin. These, however, are not always visible 
in P. muricata*, The specimen had stained the spirit in 
which it was received a bright green, and the presence 
of a green pigment soluble in alcohol is highly suggestive of 
P. muricata. 
* See Harding, ‘ Parasitology,’ iii. (1910), p, 144. 
