1908] 



Chazy Pklecypoda 



115 



Clionychia Ottawaensis (page 108). 

 An unusually perfect left valve of this species. 



Clionychia gibbosa (page 109). 

 The "rounded subpentagonal" left valve referred to on page 109. 

 ?he imperfect and "obHquely subovate" left valve referred to 

 on the same page. 



MODIOLOPSIS FAB.-EFORMIS (page 110). 



Enl-ireed side vie^v of the left valve of the specimen wi^h both 



valfes retrred to on page 110. The cross hnes to the nght 



show the exact length and height of the shell. 



The rieht valve referred to on page 110. , . , • k ki„ 



The niht valve also referred to on page 110 xvhich is probably 



referable to this species. 



Orthodesma antiquum (page 111). 

 The type of this species, a nearly perfect but not very well 

 preserved left valve. 



Vanuxemia parvula (page 111)- 

 Side view of a left valve of this species. 

 Another and very similar left valve. 



SowTERiA Canadensis (page 112). 

 A rieht valve of this species, of about the average size. 

 \ sma 1 nght x-alve, s ightlv restored at the base, and enlarged 



ThTcro^s lines to the nght show the exact length and height 



of the specimen. 

 A left valve of this species. 



Ctenodonta parvidens (page 113). 

 An abnormallv compressed and presumably _ right valve ol 

 this species, from the Chazy shale ai the Hog s Back 



NESTING OF HENSLOW SPARROW IN ONTARIO. 

 By W. E. Saunders, London, Ont. 



Henslow Sparrow is one of the rarest breeding sparrows in 

 Western Ontario and its nest and eggs are rare m collections and 

 always desirable. Prior to this year a nest had not been found 

 xn (Canada although it was known that the birds were reason- 

 ably common about fifteen miles west of Chatham m some 

 fields near the mouth of the Thames River. 



On June 17th, 1908, Mr. L. B. Brown and I went to this 

 region for the express purpose of endea^'orlng to find the nest 

 of tWs rare bird We found the birds there m considerable 

 numbers and were delighted by taking a nest -d five eggs 

 on the evening of our arrival. The next day we started out 

 w^th hi'h hopes, but after a whole day's fruitless search we 

 Tame to the conclusion that we were too early, as we saw more 



Fig. 4. 



Fig. 5. 

 Fig. 6. 



Fig. 7. 



Fig. 8. 

 Fig. 9. 



Fig 10. 



Fig. 11. 

 Fig. 12. 



Fig. 13. 

 Fig. 14. 



Fig. 15. 



Fig. 16. 



