Gatty Marine Lahoratory^ St. Andrevjs 59 



are accompanied by short flattened bristles with spatulate 

 or beaked tips and pennant-like flaps. The posterior hooks 

 do not differ from the foregoing, except in size and in the 

 shorter bases (PL III. fig. 11). The tube of the example 

 is fully 10 inches in length and thicker than a goose-quill. 

 It is composed internally of tough secretion — tinted at one 

 end of an ochreous hue, and coated externally with minute 

 pebbles or coarse sand-particles, fitted neatly together, and 

 with an occasional fragment of shell. 



Claparede separated B. kollikeri from B. vesiculosmn by the 

 presence of the two eyes on the tips of the branchial filaments, 

 but the British species has the same arrangement, and, 

 unfortunately, he does not figure the hooks of each, so that 

 certain features still require elucidation. So far as can be 

 observed, the bristles and hooks in each case are practically 

 identical, and so with the smaller flag-bristles which accom- 

 pany the anterior hooks. The terminal process of the 

 branchial filament is longer in the large ' Porcupine^ form, 

 but such may be the effect of age. On the whole, it would 

 appear to be a variety of B. vesiculosum. 



3. On the Terebellidae and Sabellidae dredged in the Gulf of 

 St. Lawrence, Canada, hy Dr. Whiteaves in 1871-73. 



Amongst the Terebellidse procured were Jmphitrite grcen- 

 landica, off Port Hood, Cape Breton, the widely distrihuted 

 Amphitrite cirrata, O. F. Miiller, off Cape Rosier Lighthouse; 

 Sabella, AB, from the same locality. Pista cristata was 

 not uncommon at Station A 1, 1872; between Cape Eosier 

 and Cape Gaspe, in 75-80 fathoms, on stony ground. No. 2, 

 1872; and in 210 fathoms, S.W. point of Anticosti. In 

 the first-mentioned the tube was composed of hard secretion, 

 minute stones, and mud. The ubiquitous Thelejms cin- 

 cinnatns, 0. Fabr., abounded in various localities, such as 

 near Orphan Bank, off Anticosti, and oft' Cape Rosier Light- 

 house. Many of the tubes were smaller than the British 

 representatives, and attached on one side, but m.ade of 

 similar materials. The curious Lanassa nordenskioldi, Mgrn , 

 was dredged off Nova Scotia at Station No. 6, 1872, and 

 Nos. 35 and 36, 1873, whilst the equally interesting Artacama 

 proboscidea, Mgrn., occurred in Gaspe Bay in 30 fathoms. 

 Fragments, apparently of Erentho smifti, Mgrn., again, 

 were found in 170 fathoms off Caribou Island, and between 

 Cape Rosier and Cape Gaspe. No form was more 

 abundant than Terebellides strcemi, Sars, which seemed to 

 range over tbe whole area, from 100 to 220 fathoms. Tlie 



