The anatomy of Dinophilus, a genus established by Oscar Schmidt in 1848, has formed the subject of several memoirs, amongst which attention must be specially called to the recent papers of Korschelt (6), Repiachoff (12), and Weldon (13). A complete account of the synonymy of the genus was given by v. Graff in 1882, whilst Korschelt (7) has, within the last year or two, published a review of the facts known with regard to the anatomy of the various species of Dinophilus.

The Copepoda not only form the greatest part of the pelagic life in temperate seas, but are also of the greatest importance in pelagic economy. Feeding on minute organisms and particles of animal and vegetable matter, they are themselves a prey to larger organisms. Some fishes such as the herring, pilchard, and mackerel feed almost exclusively on Copepoda at certain seasons of the year, and experienced fishermen are accustomed to look on the swarms of Copepods which make their appearance in the spring and early summer as the sure precursors of a shoal of fish.

Among the questions on sea fishing which are periodically and pertinaciously brought forward by some people, there is none which is more persistently paraded before the public than the wholesale destruction by trawling and other means of immature food-fishes. When questions of this kind are brought forward they are invariably accompanied with demands for legislative interference, and in this instance it is demanded by some that beam trawling should be prohibited within the three-mile limit; by others that it should be prohibited altogether at certain seasons; by others, again, that shrimp trawling should be forbidden; and a fourth party, with some show of reason, requires that certain specified areas should be closed against trawling for a number of years.

The accepted accounts of the excretory organs of the Decapod Crustacea are based chiefly upon the investigations of those numerous observers who have studied Astacus fluviatilis ; the only recent memoir which attempts to deal with the arrangement of this system of organs in any other genus being the well-known work of Grobben.

Anyone who has examined the so-called “protective” spines of the various Zoæa larvæ must have been struck by their great tendency to develop in one straight line, parallel to the long axis of the body. Among the Macrura this is the case in the Zooæ of Peneus, in the larva attributed by Claus to Hippolyte, and in the Galatheidé. In the Brachyura the same result is attained in a slightly different way.

The Delesserias, a genus of red seaweeds, six species of which inhabit the shores of the British Isles, have the thallus differentiated into a well-marked foliar expansion and a cylindrical portion; these we may respectively term the leaf and the stalk. Descriptions of this thallus are given in all books on seaweeds, for instance, in Harvey's (Phycologia Britannica), or Hauck's (Die Meeresalgen), but as far as I am aware no detailed, account has been given of these structures.

The species included in the present report have all, with one exception, been taken since the opening of the Laboratory in June, 1888. Twenty-four genera and thirty-six species will be found recorded, and those afford a considerable addition to the previously known Nudibranchiate Fauna of the Sound.

This method of taking the fish alive is, I believe, peculiar to this sea and its neighbouring waters. Indigenous or non-indigenous matters but little in that which follows; it is sufficient to state that pot-fishing forms about the only mode of capture practised in these regions for supplying the people with fresh fish.

In the Report of the Cornwall Polytechnic Society for 1851 Mr. W. P. Cocks described a species of sea-anemone under the name of Actinia tuberculata. He gave a small figure in illustration, but this was somewhat indefinite. His description is as follows:—“ Body globular, light brown, densely covered with large greyish-white tubercles, the apex of each tubercle depressed; disc white; mouth large, lips thick, corrugated, and everted; tentacula numerous, large, obtuse, some bifurcated, others trifurcated. Diameter three and a half inches when contracted.”