58 THE NAUTILUS. 



Science of Philadelpliia. Collecting was done at Cloudcroft, in James 

 Caiion, elevation 0500 feet, in the Canadian zone, where the follow- 

 ing species were taken : 



Ashmunella rliyssa hyporhyssa Vitrina pfeifFeri Newc. 

 Ckll. Euconulus fulvus Miill, 



Vallonia cyclophorella Anc. Zonitoides arboreus Say. 



Thysanophora ingersoUi Bid. Zonitoides milium Mse. 



Pupa sonorana Sterki. Punctum pygmaeum Drap. 



Bifidaria pilsbryana Sterki. Succinea avara Say. 



Vertigo concinnula Ckll. 



Ashmunella rhyssa hyporhyssa Ckll. was found in great abundance 

 under logs and branches at Cloudcroft, the type locality. 



At Highrolls, Otero Co., New Mexico, elevation 7000 feet, in the 

 Upper Sonoran zone, the following species were collected : 



Ashmunella rhyssa hyporhyssa Bifidaria armifera Say. 

 Ckll. Zonitoides arboreus Say. 



Vallonia cyclophorella Anc. Succinea avara Say. 



Holospira roemeri Pfr. and Vitrea indentata umbilicuta " Singl." 

 Ckll. were taken at 4G00 feet elevation in the Middle Sonoran zone, 

 in the Alamo Caiion near Alamogorda, Otero Co., New Mexico. 



GENERAL NOTES. 



LiMN.liA AURicuLARiA IN AMERICA. — In Science, iw\y 11, 1902, 

 p. 65, Dr. R. E. Call records the occurrence of a well-established 

 colony of this species in Flatbush, Brooklyn, N. Y. They were 

 probably introduced on plants. 



Planorbis parvus walkeri n. var. 



This variety is similar to P. parvus, but distinguished by having 

 the lip internally thickened. 



Types in coll. of Academy of Natural Sciences, no. 81143 from 

 Hartland, Vt., gift of Mr. Bryant Walker; cotypes in coll. Walker. 



It also occurs at the following Michigan localities : Oakland Co.; 

 Detroit; Cambridge, Sewell Co.; Antrim Co.; Fenton, Genesee Co.; 

 Lake near Charlevoix; and Grand Rapids, all communicated by 

 Mr. Bryant Walker. — Vj. G. Vanatta. 



Vertigo coloradensis and V. ingersolli. — In our Revision 

 of Pupae, 1900, pp. 599, 603, Mr. Vanatta and I stated that we had 

 not seen the descriptions by Mr. Cockerell published in the British 

 Natiu-alist, 1891. The missing number of that journal has now been 



