Descriptions of Two New Species of North Am. JSeUcidce. 277 



rates it as a bird of Jamaica, but did not meet with it. He gives 

 only a short description of it from a specimen obtained previous 

 to his arrival, without any account of its habits. There is 

 much interest attached to this species just at present, from the 

 fact that Dr. Kennerly has recently described (in the Proc. of 

 the Acad, of Nat. Sci. Phil., Nov. 1857) a large Cypselus (C. 

 borealis), obtained by him in Washington Territory near Puget 

 Sound ; the description as given by him, agrees so closely with 

 the specimen of C. niger before me, that I cannot but think 

 they will prove to be identical. The only noticeable difference 

 is, that the wing of his bird measures about half an inch more 

 in length from flexure to tip. 



XXXIY. — Descriptions of Two New Species of North 

 American Heiicidce. 



By Thos. Bland. 

 Read February \5th, 1858. 



1.— Helix Edvardsi. 



Plate IX. Fig. 14-16. 



T. imperforate, lenticulari, carinata, tenuiuscula, fulva ; epidermidc 

 castanea, supra in striis pilosis prostratis minutis elevata, — infra tuber- 

 culis acutis minutis creberrime munita, quse juxta aperturam setos 

 erectos gerunt ; spin! convexo-conoidea ; anfr. 5, complanatis, Iente 

 accrescentibus ; ultimo antice gibbo, subito subdeflexo ; apice minute 

 granulate ; basi convexo, parum indentata, lineis numerosis spiralibus 

 sub epidermide impressis ; sutur4 profunde impressa ; apertura obliqua, 

 transversa, auriformi ; dente angusta, subarcuata, lamelliformi, prae- 

 longa, parietis aperturalis coarctata ; perist. margine supero acuto, 

 parum reflexo, infero subarcuato, depresso, subreflexo, et ad anfractum 

 ultimum subappresso, callo dentiformi intus instruoto, obsolete inciso. 



