333 



[Verrill. 



Ulangia Bradleyi sp. nov. 



Corallum in all the specimens observed, consisting of single coral- 

 lites without apparent connection, which are subcircular, low, and 

 broad, encrusted exteriorly by sponges, etc., to very near the top, but 

 apparently without a true epitheca. Cup shallow, the centre occu- 

 pied by a moderately developed papillose columella, from which the 

 septa rise gradually to the edges, the primaries and secondaries much 

 wider than the rest near their summits and broadly rounded, and 

 like the rest, rising at this place perpendicularly to the rounded part, 

 which is less strongly toothed than their inner portions. There are 

 five complete cycles of septa, those of the first three project consider- 

 ably above the wall, the others less so. All of them are thin, and 

 have spaces between them equal to their thickness. The wall is very 

 thin and costate, in young specimens rudimentary, or wholly wanting, 

 while the septa are well developed. Greatest diameter .6 of an inch : 

 height .25 ; depth of cup .15. 



Panama, rare. F. H. Bradley. 



On the Polyps and Echinoderms of New England, with 

 Descriptions of new Species. By A. E, Verrill. 



The object of the present paper has been to enumerate the species 

 found upon this section of our coast, as far as known to me,* with the 

 view of illustrating their geographical distribution. It has also been 

 found necessary to introduce remarks, in part explanatory of neces- 

 sary changes in nomenclature, and for a clearer distinction of some 

 of the species, which have never been properly described. I regret 

 that the length of the article could not be extended so as to include 

 full descriptions in all such cases. Doubtless many species remain to 

 be discovered when more dredging has been done in deeper water. 

 The southern portion of this region, having a sandy shore, is unfavora- 

 ble for the development of numerous species of Echinoderms and 

 Polyps. In Long Island Sound the water is generally shallow, the 

 depth seldom exceeding twenty tathoms, and usually much less, while a 

 large portion of the bottom, away from occasional rocky shores, is 

 composed of soft argillaceous mud, or fine sand, and therefore suited 

 to very few species of Radiata. 



* Although most of the specimens and notes used in the preparation of this 

 paper have been gathered by myself in various excursions on most parts of the 

 coast, I am happy to acknowledge essential aid from Dr. A. S. Tackard, Jr., by spec- 

 imens from Labrador, and the loan of valuable European types; from F. W. I'ut- 

 nam by the use of the specimens in tlic Essex Institute; and from this Society by 

 the use of the specimens in its valuable collection. 



