Head, Nantucket, and their Fossils. p 



IV. SYSTEMATIC LIST OF THE FOSSILS. ..." 



In the following list are included all the records for these 

 deposits*. The names used vary somewhat from those under which 

 the species were originally reported and for sake of clearness, 

 many of the older names are given in parentheses after the name 

 accepted in present usage. Also, after the name, is given the 

 reference to the paper in which the first record of the particular 

 species from this locality was published. Where specimens of 

 the species are in the collection of the Nantucket Maria Mitchell 

 Association, an asterisk is placed before the particular species. 

 For brevity in referring to the fossiliferous beds, they are num- 

 bered 1-4, beginning at the bottom. This is indicated by the 

 figures in brackets in the table showing the complete section as 

 given by Merrill. To Mr. Chas. W. Johnson I am greatly indebted 

 for help with the nomenclature of the Mollusca. 



PROTOZOA. 



*MlLIOLINA SUBROTUNDA MontagU. 



A single specimen of this species was found by the writer in 

 sand from the lower bed, No. I. 



PORIFERA. 



*CLIONA SULPHUREA (Desor). (Verrill, 1875, p. 373). 

 Many of the larger bivalves of the lower bed, especially Ostrea 

 and Venus are bored by this sponge. 



ECHINODERMATA. 



*STRONGYLOCENTROTUS DROBACHIENSIS (Mull.) (Verrill, 1875, 

 p. 375). 



Spines of this sea urchin are not uncommon in bed No. 3. In 

 material which has been exposed to the air the spines are easily 

 seen. 



ANNELIDA. 



*HYDROIDES DIANTHUS (Verr.) (Serpula dianthus, Verrill, 

 1875, p. 373). 



Serpula is mentioned by Desor and Cabot. It makes up a large 

 part of bed No. 2, but is also common in the lowest bed on oyster 

 shells, etc. 



*FOOTNOTE. The recent paper of Mr. J. H. Wilson has added to the list given here. 



