192 



5. Photina violacea. King. 



Margarita violacea. King, Zool. Journ. vol. v. p. 346. 

 Hab. ? 



6. Photina lineata, Sow. 



Margarita lineata, Sow. Proc. Zool. Soc. 

 Hab. ? 



7. Photina nigra, A. Adams. P. testa depresso-conicd, im- 

 perforatd, solidd, nigra, Icevi ; anfractibus subrotundatis, trans- 

 versim sulcatis ; longitudinaliter oblique substriatd ; anfractu 

 ultimo subangulato ; regione umbilicali impressd ; callo albo 

 obtecto. 



Hab, ? 



8. Photina fusca, A. Adams. P. testa obliqud, subconicd, ni- 

 tidd, fusco variegatd ; anfractibus parum convexis, transversim 

 sulcatis, ultimo subangulato ; aperturd subrotundatd, intus 

 viridi iridescenti. 



Hab. ? 



9. Photina Sandwichiana, A. Adams. P. testd orbiculato- 

 conicd, imperforatd, Icevi, albidd, viridi fuscoque maculatd ; 

 anfractibus rotundatis, ultimo subangulato, apice roseo ; aper- 

 turd apertd, orbicidatd, intus viridi margaritaced ; labia albo ; 

 umbilico callo albo obtecto. 



Hab. Mataineka, Sandwich Islands. 



Mr. Oswald then communicated the following remarks by Mr. Mack, 

 on the fact of black eggs being laid by a white duck of the ordinary 

 domestic breed : — 



" The egg (observes Mr. Mack) which is herewith sent was laid 

 by a white duck, one of two belongmg to Mr. Dickinson of Mitcham, 

 which stray during the day on the common, but are confined at night. 

 The drake was lost about a month since, and then one of the ducks 

 commenced laying black eggs, the other still continuing to lay white 

 ones, — she laid ten or twelve and then ceased for some days ; she has 

 again commenced laying black eggs. The ducks are fed once a day 

 with barley, at the time the other poultry are fed. 



" Mr. Dickinson, showing the egg this morning to one of the 

 guards on temporary duty on the Brighton rail at Croydon, he said 

 he had a duck wliich laid the same colour, or even blacker, and that 

 he had raised (at East Bourne) two broods of ducks from black 

 eggs." 



Haling Cottage, Croydon, May 24, 1851. 



