6 Ii HEDGING REP0ETS. 



Chiton albus, have been got for the first time on the north-east 

 coast ; but a few fine and rare species, including Fusus Turtoni, 

 F. Norvegicus, F. Berniciensis, and Buccinopsis Dalei, for which 

 this locality has obtained some celebrity, were not met with 

 during the dredgings, a single ovicapsule of F. Turtoni being the 

 only indication of the presence of any of them. Repeated at- 

 tempts to procure these fine shells by dredging have failed, both 

 here and on the Yorkshire coast. The probability is that they 

 inhabit rocky ground on which the dredge will not work. This 

 is the more likely, as the allied species, Fusus antiquus, which is 

 known to be common on this coast, and is brought in constantly 

 on the fishermen's lines, was met with very sparingly, and in an 

 immature state. 



The only Cephalopods obtained belong to the genus Sepiola, of 

 which both the British species are now shewn to inhabit our 

 coast, a single individual of S. Rondeletii having been met with 

 in the last dredgings near Holy Island : the specimen is peculiar 

 in having the fins angulated at the top ; but this is perhaps only 

 an accidental variation from the usual form. 



Of the Tunicata it may be remarked, that two of the species here 

 catalogued, Cynthia comata and C. vestita, have not yet been found 

 in any other locality. I had supposed the latter to be identical 

 with tbe Cynthia ( Glandula) glaciajis of M. Sars, but from a more 

 detailed description of that species, which the learned Professor has 

 since published, the two forms prove to be distinct. I have there- 

 fore fallen back upon the name that I had at first proposed for the 

 British species. Ascidia conchilega of Miiller, referred by Forbes 

 to the restricted genus Ascidia, I have since ascertained to be a 

 Molgula. It has not been found before on the eastern coast. 



The dredging excursions being mostly confined to the coralline 

 and deep-water zones, few of the common littoral species were 

 met with, and these principally dead shells. The only exceptions 

 to this were Mytilus edulis, Trochus cinerarius, and Aemcea vir- 

 ginea, the former of which was found alive in 15 fathoms, and 

 the two latter in 40 fathoms, near the Fern Islands. 



The first year's dredging was the most productive in Mollusca : 

 137 species (including Tunicata) were then obtained. From these 



