48 THE NAUTILI'S. 



of these will follow shortly. Trophon triangulatus is a fine species, 

 resembling" Chorus" Beleheri, but smaller, without the basal groove 

 and tooth. It has probably escaped the notice of Dr. Dall that 

 Belcher! is not a chorus at all, the type of that genus being C. gigan- 

 teus Lesson, of Chili, a shell that looks like a big smoothish 

 vionoceros. — H. A. P. 



List of N. A. Land and Fresh- water shells received from 

 THE U. S. Dept. of Agriculture, with notes and comments 

 therox by Robert E. C. Stearns. (Proc. U. S. Nat. Mus.) The 

 species noticed in this paper were mainly collected in Texas, Ari- 

 zona and Wyoming. Helix humboldtiana Val., a Mexican species, 

 is added to our fauna, the single specimen being from Altuda, Texas, 

 at an elevation of 5000 ft. Dr. Stearns erroneously places this in 

 the section Pomatla; but it by right belongs to the Arionta brother- 

 hood, in Fischer's section of Arionta called Odontura. H. {Poma- 

 tin) aspersa, the common European edible snail, is in the National 

 Museum from Puebla, Mexico. The members of the Academy of 

 Science's expedition to Mexico also found this shell very abundant 

 around the City of Mexico, doubtless imported, as the species is an 

 excellent traveller and successful emigrant. Dr. Stearns has been 

 able to connect the Bulimulus Ragsdalei with B. dealbatushy inter- 

 mediate examples, showing a gradual transition from the strongly 

 ribbed to the smooth form. Under the old name B. alternatus are 

 placed as synonyms, B. schiedcanus, B. patriarcha, B. maricB and 

 B. inooreanus. I am quite disposed to accept this arrangement of 

 our Bulirauli, and would add at least two of the Mexican so-called 

 species to the list of synonyms under alternatus. A large number of 

 new localities are quoted for other and well-known species. — H. A. P. 



