1908J Lymn^a umbilicata C. B. Adams ix Canada. ^.l 



sculpture of rather fine, but irregular growth lines, with no 

 trace of either raised or incised spiral lines is also characteristic. 

 The specimen figured is the usual northern form which is ap- 

 parently not typical and barely, if at all, distinguishable from 

 the L. modicella of Say. 



Umbilicata is about the size of humilis but in shape is 

 nearer to caper ata. It is more ventricose than that species 

 and has one less whorl. In full matured specimens, the lip 

 is thickened by a callous deposit, which is more or less tinged 

 with pink. The columella is without a fold and is broadlv re- 

 flected over the conspicuous umbilicus. The surface is apparent- 

 ly smooth and polished, but under the glass shows usually on the 

 body-whorl some traces of the revolving, incised spiral lines 

 mentioned by Adams and, on the apical whorls, a light, but 

 characteristic longitudinal, sculpture. 



As stated elsewhere ('Naut. 1. c.) L. umhilicaia seems to 

 be a northern variety of L cubensis Pfr. characterised bv its 

 more globose shape, more obtuse apex and usually shorter spire 

 and the thickened lip. The additional material that has come 

 under observation since that view was expressed has ser\^ed to 

 confirm the opinion and therefore, this form should be properlv 

 designated as L cubensis ttmbilicata C. B. Ads. 



COUNCIL MEETING. 



A meeting of the Council of the Ottawa Field-Naturalists' 

 Club was held on June 2nd in the Carnegie Librarv. The 

 following members were in attendance: The President. "Sir. 

 A. E. Attwood; Messrs. A. Halkett, A. Gibson, C. H. Young, 

 J. M. Macoun, E. E. Lemieux, A. McNeil, L. H. Newm.an and 

 T. E. Clarke; Miss Q. Jackson and Miss E. E. Currie. 



The following were elected ordinary members: Dr. E. M. 

 Walker, B.A., M.B., 99 St. George St., Toronto; Mr. T. A. Brown, 

 Normal School, Ottawa; Mr. A. E. Mel drum, Percv St. School, 

 Ottawa; Mr. E. C. Wight, 34 Gilmour St., Ottawa.' 



Some changes were made in the programme of excursions, 

 and a discussion took place on Dr. White's proposed combined 

 lecture course, in order that the Club's representati\'es might 

 present the views of the Council at the meeting of the joint com- 

 mittee to be composed of representatives from different societies 

 in Ottawa giving courses of lectures throughout the winter. 



T-. E. C. 



