70 THE NAUTILUS. 



Brasilica Clark 1913. This generic term was erected by 

 Dr. John M. Clarke (Monog. do Serv. Geol. e Mineral, do 

 Brazil, Vol. 1, pp. 214-216, 1913) with the CentroneUaf mar- 

 garida Derby as the genotype. The use of the term Brasilica 

 is not applicative, in view of the fact that it was employed by 

 S. S. Buckmaii in 1898 for a genus of Ammonites, with the 

 Jurassic species A. bradfordensis as the genotype. The 

 generic term Chapadella is here proposed for the type of loop 

 structure exemplified in CentroneUaf margarida Derby, the 

 genotype. Chapada is a small village in Matto Grosso, Brazil, 

 near which place H. H. Smith collected the material originally 

 used by Dr. Derby in his paper published in the Revista do 

 Museu. Rio de Janeiro, 1896. DARLING K. GREGER. 



ZONITOIDES NUMMUS IN INDIANA. In looking over a lot of 

 shells collected on Feb. 28, 1904, by the late A. C. Billups 

 from Great Miami River drift, Lawrenceburg, Ind., I found 

 specimens which I take to be Zonit aides nummus Van., so am 

 sending some. This is far out of the recorded range of this 

 species so far as I know. The balance of the shells are what 

 one would expect from that region. A good many of the Z. 

 minusculus have the thickening of the lip, or rather back of 

 the lip, "bourrelet" I believe the French call it. This is not 

 a mark of maturity, as many of the half-grown shells have it. 

 GEO. H. CLAPP. 



PUBLICATIONS RECEIVED. 



JOURNAL DE CONCHYLIOLOGIE, 1920, Vol. 66, No. 4. Revision 

 des Cypricardiacea et des Isocardiacea Vivants du Museum 

 D'Histoire naturelle de Paris. Par Edouard Lamy. Pp. 259- 

 307. A very exhaustive treatise on this group of bivalves. 



PROCEEDINGS OF THE MALACOLOGICAL, SOCIETY OP LONDON, 

 Vol. 14, PL 1, Apr. 1920. A new subspecies of Papuina tay- 

 loriana from Dampier Island, by Hugh C. Fulton, p. 2. P. 

 tayloriana dampierensis. 



