Ill 



the top of its head to the under side of sharks, or other large fishes, 

 or to the bottoms of vessels, etc. 



He would take this occasion to record the addition of two species 

 of fishes to the fauna of Essex County waters. One of these was a 

 Eemora, having the peculiar structure of the head just alluded to. 

 This species now added to the list of county fishes was the White- 

 tailed Remora, the Echeneis albicauda of Mitchell. The specimen was 

 taken at the mouth of the Merrimack River last month, and presented 

 to the Peabody Academy by W. C. Johnson, Esq., of NeWburyport. 

 The other addition to the county fishes was that of two specimens of 

 the Spotted Plaice, Pleuronectes maculatus of Mitchell, as given in 

 Storer's last report, p. 204. This fish is very common at Cape Cod 

 and the south, but the two specimens presented to the Academy by 

 Mr. Samuel L. Walker of Salem, were the first that had been recorded 

 as taken inside the bay, and having been caught in Salem harbor they 

 form an interesting addition t@ the county fauna. % 



Mr. Putnam also stated that a gentleman present had placed a bottle 

 on the table containing the Saw flies developed from the Current 

 worm, of which so much was said at the last meeting. These Saw 

 flies had gone through their transformations in the bottle in nine days. 

 There was no earth in the bottle and it was an interesting fact to 

 know that they could transform without it. 



Prof. E. S. MORSE described some of the more common forms of 

 animal life as we find them in our rambles along the shore, showing 

 the distinctive features of the different species of mollusks, with 

 great clearness. A bottle of marine worms was exhibited and de- 

 scribed in this connection, showing the wonderful order and system 

 which characterizes even these lower animals, and also that common 

 animal the- barnacle, which was formerly included among the mollusca 

 before their organization was fully understood, and is now placed 

 among the articulates. 



Mr. HYATT made some remarks upon the generally accepted views 

 of the upheaval and subsidence of continents, and mentioned that he 

 lately found a raised beach on Marblehead Neck, some eight or ten 

 feet above the present limit of high tide. This was a smooth water 

 worn porphyry cliff. The extreme friability of this porphyry, and its 

 rapid disintegration, as well as the form of the neighboring cliffs, 

 show that the elevation must have been comparatively recent. The 

 speaker then suggested that Dr. Winslow, who was present, should 

 explain his views with regard to the subsidence of continents, which 

 although very different from those commonly received, had been 

 matured after many years of travel and study, and would undoubtedly 

 be interesting to the Institute. 



Dr. C. F. WINSLOW, of Boston responded to the call of the chair 



