66 Zoological Society. 



of the animal near the mouth of the shell, which is whitish or bluish- 

 white, bordered with the dark chestnut of the lip. (W. J. B.) 

 Bulinus Bullula. Bui. testd ovato-rotundatd, diaphand, albidd, 

 anfractibus 4 ventricosis, lineis incrementi oblique striatis; aper- 

 turd magnd, subumbilicatd. 

 Long. 1^; lat. 1 poll. 

 Hab, in insula Mindoro. 

 Legit H. Cuming. 

 A milk-white line runs round the sutures. (W. J. B.) 



Mr. Gould resumed the exhibition of his new species of Austra- 

 lian birds, and characterized the following species : — 



Ephthianura tricolor, Ephth. vertice, pectore, tectricibusque 

 cauda coccineis ; gutture albo. 



Male. — Crown of the head, upper tail-coverts, breast and abdo- 

 men bright scarlet ; lores, line above and beneath the eye, ear-co- 

 verts, occiput and back dark brown ; wings brown, each feather 

 margined with brownish white ; tail dark brown, each feather having 

 a large spot of white on the inner web at the tip ; chin, throat and 

 under tail-coverts white ; irides straw- white ; bill and feet blackish 

 brown. 



Female similar in colour, but having only a slight wash of the 

 scarlet colouring, except on the upper tail-coverts, where it is as 

 brilliant as in the male. 



Total length, 3£ inches; bill, •&>; wing, 24; tail, lj; tarsi, f. 



Hab. ? 



Myzantha obscura. Myz. fronte flavescente-olivaceo ; gutture, 

 uropygio, et corpore subtils cinereis, — plumis pectoralibus lunula 

 apicem versus notatis, et ad apicem pallide cinereis. 



Forehead yellowish olive ; lores, line beneath the eye and ear- 

 coverts black ; head and all the upper surface dull grey, with an 

 indistinct line of brown down the centre of each feather, giving the 

 whole a mottled appearance ; wings and tail brown, margined at 

 the base of the external webs with wax-yellow, the tail terminating 

 in white ; throat and under surface dull grey, becoming lighter on 

 the lower part of the abdomen and under tail-coverts ; the feathers 

 of the breast with a crescent-shaped mark of light brown near the 

 extremity, and tipped with light grey; irides dark brown; bare 

 skin round the eye, bill, and bare patch on each side of the throat, 

 bright yellow; legs and feet dull reddish-yellow; claws dark brown. 



Total length, 9£ inches; bill, 1^; wing, 5 \\ tail, 4f ; tarsi, 1£. 



Hab. Western Australia. 



Ptilotis sonorus. Ptil. loris et strigd per oculos ductd, ad colli 



latera, nigris plumis auricularibus flavis, — et pone has, notd sor- 



dide alba ; — gutture et abdomine pallide flavescenti- cinereis , fusco- 



striatis. 



Crown of the head and all the upper greyish olive ; wings and 



tail brown, margined on their external webs with greenish yellow ; 



lores, space around the eye and broad line down the sides of the 



