— 290 — 



Vol. XXX, n" 12, April 1917. 



Contents : P. Uartsch. Tlie Status of tlie Genus Subularia 

 Monterosalo (PI. V). — .îun. Henderson. A New Pleistocene 

 MoUusk Localit^y in New Mexico. — Fr, (-. Baker. Notes on 

 Acella llaldemani (Desh.) Binney. — Geo. H. Clapp. New 

 Lancl Siieils from Alabania and Arkansas, with Note on Po/y- 

 fjyra albolabris and P. zaleta [VUrca {ParavUrea) conecuhensis 

 n. sp., Polijgijra labrusa l'imbriala n. var.] (PI. V). — \V. J. 

 Crozif.r. Sonie Structural Variations in Chrornodoris zébra 

 (PI. M). — \y. J. Crozier. A Metliod of PreservLng Large 

 Nudibranchs. 



La Directrice-Gérante : M'"'' H. Fischer. 



