Of the _Crustacea_, the _Annelidæ_, and _Echinodermata_, there is abundant representation here. The sea-urchins, “repkie” of the natives, are eagerly sought for at low tide and eaten raw by them. The arctic sea-clam, _Mya truncata_, is once in a long time found here (it is the chief food of the walrus of Alaska), and the species of _Mytilus_, the mussels, so abundant in the Aleutian archipelago, are almost absent here at St. Paul and only sparingly found at St. George. Frequently the natives have brought a dish of sea-urchins’ viscera for our table, offering it as a great delicacy. I do not think any of us did more than to taste it. The native women are the chief hunters for echinoidæ, and during the whole spring and summer seasons they will be seen at both islands, wading in the pools at low water, with their scanty skirts high up, eagerly laying possessive hands upon every “bristling egg” that shows itself. They vary this search by poking, with a short-handled hook, into holes and rocky crevices for a small cottoid fish, which is also found here at low water in this manner. Specimens of this cottoid which I brought down declared themselves as representatives of a new departure from all other recognized forms in which the sculpin is known to sport; hence the name, generic and specific. The “sandcake,” _echinarachinus_, is also very common here. By May 28th to the middle of June a fine table-crab, large, fat, and sweet, with a light, brittle shell, is taken while it is skurrying in and out of the lagoon as the tide ebbs and flows. It is the best-flavored crustacean known to Alaskan waters. They are taken nowhere else at St. Paul, and when on St. George I failed to see one. I am not certain as to the accuracy of the season of running, viz.: May 28th to June 15th, inasmuch as one of my little note-books on which this date is recorded turns out to be missing at the present writing, and I am obliged to give it from memory. The only economic shell-fish which the islands afford is embodied in this _Chionoecetes opilio (?)_. The natives affirm an existence of mussels here in abundance when the Pribylov group was first discovered; but now only a small supply of inferior size and quality is to be found. With reference to the jelly-fishes, _Medusæ_, which are so abundant in the waters around these islands, their exceeding number and variety and beauty startled and enchanted me. An enormous aggregate of these creatures, some of them exquisitely delicate and translucent, ride in and out of the lagoon at St. Paul when the spring-tides flow and ebb. Myriads of them are annually stranded, to decay on the sandy flats of this estuary. [Illustration: MAP OF ST. PAUL ISLAND—PRIBYLOV GROUP. Showing the Area and Position of the Fur Seal Rookeries and Hauling Grounds. Surveyed and drawn (1873-74) by HENRY W. ELLIOTT.]