48 THE NAUTILUS. 



TEREDO DIEGENSIS new species. 



Expanded portion of pallets ovate, tipped at the distal end, 

 which is the smaller, by a thick black distally truncated corneous 

 cap. A complete description and illustration of the shell, which 

 is like typical Teredo, will follow shortly in a monograph on the 

 American species of this family. 



There are six lots of this species in the collection of the U. S. 

 National Museum from San Diego, California. The type is 

 registered under Cat. No. 74219 U. S. N. M. 



NOTES. 

 BlFIDARIA CLEMENTINA OLDROYDAE, N. VAR. Shell similar to 



B. dementina St., but it lacks the basal fold. The angular la- 

 mella has a transverse depression, which gives it a double ap- 

 pearance in the face view. Length 1.9., diam. .9 mm. From 

 Santa Barbara Island collected by H. HemphilJ in October 

 1902. The type is No. 113848 Acad. Nat. Sci. Phila., donated 

 by Mrs. Ida S. Oldroyd, in whose honor it is named. E. G. 

 VAN ATT A. 



VIVIPARUS MALLEATUS Reeve. In the NAUTILUS, Vol. 19, p. 

 35, July 1915 I published a note on the occurrence of this 

 species in Massachusetts. That the colony is still thriving is 

 shown by Messrs. Wm. J. Clench and Kendall Foster who ob- 

 tained over 50 specimens this spring, varying from 10 to 45 

 mm. In cleaning one of the larger specimens I obtained from 

 the oviduct a specimen measuring 6 mm. C. W. JOHNSON. 



PUBLICATIONS RECEIVED. 



THE PLIOCENE MOLLUSCA OF GREAT BRITAIN. By F. W. 

 Harmer F. G. S. Part II, pgs. 201-302. (Palaeontographical 

 Society 1914). This part contains the Pleurotomidae. A 

 number of new species are described and all of the species are 

 figured on seven plates. 



