(112) 



After the printing of a large part of this memoir I received the 



"Notes on some British Nubibbanchs" (Journ. of the Marine 

 Biological Association, vii., 3, 1906, pp. 333-382, with 2 pi.), 

 by Sir Charles Eliot, 



and 



" Ol'ISTHOBRANCHIATE MOLLUSCA PROM MoNTEREY BaY, CALIFORNIA, 



AND Vicinity" (Bull, of the Bm'eau of Fisheries, xxv., 1905, 

 pp. 111-151, with 14 pL), by Prof. MacFarland. 



I therefore have not been able here to use the general and special 

 notices contained in these papers. 



