64 



Dr. A. A. Gould presented specimens of Mallotus vil- 

 losus in a fossil state, contained in clay concretions from 

 the coast of Maine. This fish is interesting as being the 

 only species known to naturalists, in both a living and fossil 

 condition. 



Octobe?' 18, 1848. 

 Mr. E. C. Cabot in the Chair. 



Present, ten members. 



Dr. Gould presented several specimens of new shells, 

 and read descriptions of them. 



Glandina bullata. Testa papyracea, bullala, diaphana, 

 elHpsoidea, lactea, ferrugineo tincta, longitudinaliter crebro 

 striata ; spira octantem longitudinis sequante, anfr. 5 convexius- 

 culis ; sutura modica ; apertura f longitud. testse, late lunata ; 

 columella modice arcuata, lamina callosa induta. Long. 1^, 

 lat. f poll. Hah. Louisiana. 



This shell was received in considerable numbers from Rev. 

 E. R. Beadle, of New Orleans. It differs from G. truncata in 

 its extreme tenuity, inflated form, and short spire, in the smaller 

 number of its whorls, its paler color, finer striation, and nearly 

 straight pillar. 



LiMNEA lanceata. Tcsta raediocri, fragili, diaphana, cornea, 

 attenuata, striis incrementalibus et striis volventibus argute reti- 

 culata ; spira anfr. 6 planiusculis, perobliquis, ultimo f testes 

 aequante ; apertura angusta, dimidiam longitudinis fere adequante, 

 postice acuta ; plica columellari conspicua, acuta, vix spirali ; 

 labro fascia castanea submarginali picto. Long, f, lat. ^ poll. 

 Hob. North shore of Lake Superior, " Pic Lake," where it was 

 collected by Prof. Agassiz. 



Next to L. gracilis this is the most delicate species we have. 

 It may be compared with L. attenuata and L. rejiexd, from both 



