NOTE TO THE REPRINT. 



That portion of Part II which precedes page 503 of this volume of the Trans- 

 actions, had been printed and the author's separate edition of 150 copies mostly 

 distributed before the fire, by which tlie regular edition was destroyed, causing 

 considerable delay in issuing the volume. A. portion of the author's edition 

 was also distributed, as soon as printed, in sheets, each bearing its date ..f pub- 

 lication, to all those Zoologists known to be interested in the subject. 



Hence it was thought undesirable to introduce in this reprint even those 

 changes which the progress of science has rendered necessary, except when it 

 couUrbe done in parentheses or foot notes, without essentially changing the pag- 

 ing and original reading. Therefore, in the first five articles, no changes of impor- 

 tance, unless typographical errors, have been made, except in foot notes to which 

 •'—Reprint " is appended. In the sixth article, it being still incomplete and less 

 extensively distributed, I have introduced changes more freely, yet without chang- 

 ing the paging, and have in all important cases affiixed "—Reprint" to new mat- 

 ter. When a name has been changed the original name follows in parenthesis, 

 in order that no confusion may arise from references to copies of the first edition. 

 The foUowing are the most important changes: p. 386, Gorgonia is changed to Euni- 

 cella, and Pterogorgia to Gorgonia; p. 387, Litigorgia to Leptogorgia; p. 392, ^. 

 ruuLis made a distUict species; p. 398, L. levis changed to L. alba; p. 398, L. 

 fucosa to L. Caryl; p. 410, Eugorgia Mexicana to E. auranUaca; p. 413, Leptogor- 

 'gia aaraatiaca E. and H. to Echinogorgia; the measurements of the spicula of iejj- 

 to^or^ia and i;e««7or-^ia have been corrected in accordance with the note on p. 415 



(1st ed.), and in some cases additional ones given ; new localities have been 



added from the collections of McNiel and Capt. Pedersen; p. 417, Psammogm-gia 

 /Mcosa added; p. 4 50, Echinogorgia aurantima added; p. 4 97, Cemmaria changed 



to Epizoanthiis. 



The above changes in nomenclature have also been made in the American Jnur- 



nal of Science, vol. xlviii, p. 419, Nov., 1869, from whieli they should date. 



A. E. VERRILL. 



New H.-iVEX, Conk., November 15th, 1869. 



