205 



Littorina lunata. Testa quadrangulari, imperforate, crassa, 

 costata, lutescente vel brunnea ; spira elevata, conica, acuta ; su- 

 turis inconspicuis ; anfractibus quatuor, planis, costis transversis 

 magnis crebris ; anfractu ultimo angulato, usque ad basin costato ; 

 apertura oblique elliptica ; labro acuto, undulato ; columella in- 

 ferne latissima, plana. Long. ,07 ; lat. ,05 poll. Hab. Cape May. 



Cingdla roeusta. Testa ovato-acuminata, perforata, lajvi, cras- 

 sa, alba ; spira brevi, sub-acuta ; suturis impressis ; anfractibus 

 quinque, ad suturam superiorem subangulatis ; anfractu ultimo ro- 

 tundo ; basi Isevi ; perforatione arctata, profunda ; apertura ovata, 

 magna. Long. ,10 ; lat. ,07 poll. Hab. Cape May. 



Cingula modesta. Testa ovata, imperforata, lsevi, tenui, dia- 

 phana, viridicornea ; spira brevi, ovata, haud acuta. ; suturis par- 

 vis ; anfractibus quatuor, planulatis ; anfractu ultimo rotundato ; 

 basi laevi ; apertura ovata., superne acuta, inferne rotundata. Long. 

 ,10 ; lat. ,06 poll. Hab. Brooklyn, Long Island. 



Cingula turriculus. Testa elevala-ccnica, perforata, laevi, 

 crassa, fulva ; spira valde exserta, conica, obtusa ; suturis parvis ; 

 anfract. 6, convexis ; anfr. ultimo, sub-bullato ; perforatione parva, 

 arctata, lunata ; apertura ovata ; columella crassa, anfractu ulti- 

 mo pene disjuncta. Long. ,12; lat. ,05 poll. Hab. South Carolina. 



Dr. Storer presented a paper from William O. Ayres, of 

 East Hartford, Ot., entitled u An Attempt to prove that 

 Coitus cognaivs, Richardson. C. viscosus, Haldemann. and 

 Uranidea quiescens, Dc Kay, are one species, and identical 

 with Coitus gobio of Linnaeus." 



A very minute comparison is instituted of the external 

 characters and internal anatomy of the American and Euro- 

 pean fishes, and also of the several descriptions given of 

 them by authors. The paper was referred to the Publish- 

 ing Committee. 



Mr. Edward Tuckerman presented a paper entitled "A 

 further enumeration of some alpine and other Lichenes of 

 New- England." 



The author's observations have been made chiefly in the limited 

 district of the White Mountains. He compares the Lichenes of 

 this district with those of the Scandinavian Peninsula and Scotland, 

 though he considers that it might have been more properly com- 

 pared with a particular district in one of those countries, as Dovre, 



