216 



Dr. J. Gwyn Jeffreys on the [June 15 ^ 



finely ramose algse ; but the microscope shows that these finely branched 

 processes are composed of the same elements as the tube, so that the 

 animal probably fashioned it to be in harmony with such structures. 

 One bottle from station No. 9 contained about twenty rich madder-brown 

 tentacles (apparently of a Medusa) which w^ere brought up by the 

 sounding-line ; they were studded with finely formed thread-cells. 



Reference will first be made to the Annelids as they occur in the 

 sequence of their families, and thereafter a note of the collection in its 

 bathymetrical and geographical aspects will be appended. 



The EiiphrospiidsD are represented by fine examples of Euplirosyne 

 horealis, Orst. While no example of the Amphinomidse or AphroditidsB 

 occurs, the Polynoidse, on the other hand, are common. The most 

 abundant of the family, perhaps, is Nycliia cirrosa, Pallas, the size of the 

 specimens somewhat exceeding those from Shetland and Canada. One 

 has its sliin studded throughout with small, firm, whitish tubercles, 

 caused by subcutaneous masses composed of a vast number of minute 

 ovoid bodies with a firm external wall, differentiated from the slightly 

 granular central region. No change was produced by the addition of 

 acetic acid, but sulphuric ether shrivelled them considerably. The 

 structures seemed to be of parasitic origin. Nycliia Amondseni, Mgrn., 

 occurs likewise in fine condition. Eiinoa Oerstedi, Mgrn., is represented 

 by specimens an inch and three quarters long, and therefore considerably 

 larger than those from Canada. The ubiquitous Harmothoe imhricata, L., 

 is abundant, and there is nothing peculiar in size or coloration; in- 

 deed much larger examples exist in my collection from Exeter Bay, 

 Greenland. Some varieties approached Evarne impar, Johnst. (a species 

 also present) ; but they could always be recognized by the position of the 

 eyes, the structure of the bristles, and other points. Many had parasitic 

 Infusoria on the bristles. A fragment of Eupolynoe occidentalis, M'Int., 

 with scales, demonstTates that the latter become in spirit of wine of a 

 ferruginous brown hue and smooth. They have rather numerous, long, 

 slender cilia on their outer border, and the tips of these processes are very 

 slightly dilated. The Lepidonotus suhlevis of Prof. Yerrill* may be this 

 or an allied form ; but his description is unfortunately too lax for deter- 

 mination. The specimen had several parasitic Pedicellinae. 



The Sigalionidae are represented by a fragmentary Leanira from 1785 

 fathoms (station 16), and by excellent examples of Pholoe minuta, 

 Pabr. 



Two species of the family NephthydidsD occur, viz. NepTithys cmca, 

 Pabr., and N. incisa, Mgrn., the former having many parasitic Infusoria 

 on its bristles. 



Of the Phyllodocidse are Phylhdoce Groerdandica^ Orsted (large speci- 

 mens), Eulalia viridis, O. P. Miiller, Eteone pusilla, Orst., and Eteone 

 Jlava, Pabr., besides a fragmentary and minute PJiyllodoce. 



* Invertebrate Animals of Vineyard Sound, p. 581. 



