Zoological Society. 63 



alive it is of a brick-red colour, with the chela? crimson ; under sur- 

 face rufous. 



Lambrus lamelliger, White, List of Specimens of Crust, in Brit. 

 Mus. p. 12. 



Front depressed, flat, thin ; upper surface of carapace with three 

 largish protuberances behind, one in the middle and one on each side ; 

 carapace longer than wide ; sides about the middle crenated ; fore- 

 legs very long. 



Breadth of carapace 4J lines ; length 5| lines. 



Hab. Philippine Islands. From Mr. Cuming's collection. 



Lambrus turriger, White, List of Specimens of Crust, in Brit. 

 Mus. p. 12. 



Carapace longer than wide ; front small, depressed and consider- 

 ably grooved in the middle, the side with a small tooth on each side ; 

 back of carapace with four elevated spines, thickened and blunt at 

 the end, the first about midway between front and back ; behind it 

 another much higher, and one on each side of this ; on the hind 

 margin of carapace, in the middle, are two spines. 



Arms very long, verrucose ; legs very slender and smooth. 



Breadth of carapace about 4 lines ; length about 4^- lines. 



Hab. Philippine Islands : British Museum. From Mr. Cuming's 

 collection. 



Also brought by Capt. Sir Edward Belcher, C.B., R.N. 



4. On some undescribed species of Lepidoptera in the Society's 



Collection. By Edward Doubleday, Esq., F.L.S. &c. &c. 

 Genus Pieris. 



Pieris Phaola. Pi. alls omnibus supra albis, anticarum margine 

 externo late nigro, posticarum punctis sex nigris notato, subtiis 

 pallide fiavescentibus, basi flavis, marginibus externis nigro-punc- 

 tatis. Exp. alar. 2^ unc. vel 57 millim. 



Hab. Fernando Po. 



Above, all the wings white, very slightly tinted with yellowish 

 at the base j anterior wings with the costa narrowly black ; the outer 

 margin with a broad black border, dentate internally, broadest at the 

 apex. Posterior wings with a series of seven round black dots on 

 the margin. 



Below, pale cream-colour or white, slightly tinged with yellow ; 

 palest on the disc of the anterior wings ; the base and costa of the 

 anterior and the costa of posterior wings yellow ; apex and outer 

 margin of anterior wings with a series of nine black dots, of which 

 the first to the sixth are minute, the seventh larger and double, the 

 eighth and ninth larger than any except the seventh. Posterior wings 

 with a marginal series of seven black dots : the first, second and 

 third very minute, fourth, fifth and sixth progressively larger, seventh 

 small. 



Head, thorax and abdomen black, sprinkled especially below with 

 white scales. Antennae black, annulated with white. 



In the collection of the Zoological Society. 



