5S 



legs ratlier longer than the second and fifth ; tbe taršai joints «f the 

 second, third, fourth and fifth pairs of equal size and tliickne;^s ; the 

 fifth pair of legs inserted above the fourth pair. 



Abdomen of female seven-jointed ; three or four of the basai joints 

 seen from above. Malė unknown. 



This genus is allied to Eumedonus. 



GoNATONOTUs PENTAGONUS, n. S., List of Spccimens of Crust. in 

 Brit. Mus. p. 125. 



Carapace above closely venucose, the \varts depressed ; a strong- 

 ish ridge across the back, extending from one lateral angle to the 

 other, with t\vo tubercles in the middle ; the front grooved do\vn the 

 middle ; the centre of the back with two longitudinal impressions ; 

 terminai joint of abdomen in female verrucose. 



First pair of legs verrucose ; the pincers grooved. 



Mr. Adams found this species on the coast of Borneo. When 

 alive it is of a brick-red colour, with the chelae 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 \vith three 

 largish proluberances 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 4^ 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 \viih a small tooth on each side ; 

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

 the end, the first about midway betvveen 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 veiy long, verrucose ; legs very slender and smooth. 



Breadth of carapace about 4 lines ; length about A\ lines. 



Hab. Phili})pine 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 Societt's 

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



Genus Pieris. 



PiERis Phaola. Pi. alis omnihis supra albis, anticarum margine 

 externo late nigro, posiicarum punctis sex nigris notato, subths 

 paUicTe flavescentibus, basi fiavis, marginibus externis nigro-punc- 

 tatis. Exp. alar. 2į unc. vel 57 miUim. 



Hab. Fernando Po. 



