92 NOTES ON DIATOMACE.33. 



Fig. 19. — Outlines of scales, natural size. 

 " 20. — Scale, twice natural size. 

 " 21.— Vertebra. 

 " 22. — Caudal vertebra. 

 " 23. — Vertebra broken across, showing neural and central cavities ; 



(a) natural size ; (b) section of a portion magnified, showing 



canals and bone cells. 

 " 24. — Fragments of ribs. 

 " 25. — Scapular bone. 

 " 26. — Humerus, crushed at the proximal end, with fragments of the 



radius. 

 " 27. — Fragments of femur, tibia, and fibula. 

 " 28. — Remains of pelvis. 

 " 29.— Bones of the foot. 

 " 30. — Group of bones of the foot, in siiu. 

 All the above are of the natural size, unless otherwise stated. 



Art. VII. — Notes on Diatomacece from the St. John River; by 

 Prof. L. W. Bailey, of the University of New Brunswick. 



(Communicated by the Natural History Society of New Brunswick.) 



For the benefit of those especially interested in such pursuits, I 

 have prepared the following lists of the species which I have, so far, 

 observed as occurring in the waters of this Province. Further 

 study will no doubt add greatly to the number of species. 



The first list which I have to present is that of a number of 

 forms obtained from a very interesting gathering, kindly sent me 

 by Mr. G. F. Matthew, a member of the Society, with the request, 

 that I would report any results which might occur to me. The 

 examination has been to me one of much pleasure, and has 

 developed facts of importance in regard to the distribution of 

 the species it contains. Although I give the list so far as now 

 completed, I hope to be able, at some future period, to dwell at 

 more length upon the subject, and at the same time to present a 

 variety of other interesting matter from various parts of the pro- 

 vince. 



List of Diatomacece from Harris 1 Cove, Kennebeckasis R., iV. B> 



Navicula pusilla ? 



Doryphora Boeckii. 



" amphiceros. 

 Navicula maculata, Bail. 



" ovalis. 



" viridis. 



" rhynchocephala 



" permagna. 

 " firma. 

 Pinularia major. 

 " Couperi ? 

 " mesolepta. 



