456 Royal Society : — 



Sylvia erythrogastra, var. A, Lath. Hist. ^di. p. 28. 



Ruticilla leucocephala. Less. Rev. Zool. (1840) p. 265. G. R. 

 Gray, Gen. of Birds, i. p. 180. Hodgs. Cat. B. of Nep. p. 68. Blyth, 

 Journ. A. S. Beng. xvi. p. 134 ; Catal. B. Mus. A. S. Beng. p. 169. 

 Boiiap. C. G. Av. p. 296. 



Chaimarrornis leucocephaluSy Hodgs. Grav's Zool. Misc. (1844) 

 p. 82. 



The White-capped Redstart. 



Gir-Chaondeea, Hind., Hardwicke. 



Kalee pholia, Mohun Ghats, Royle. 



Hab. N; India. In Mus. East India Company. 



*' This species is extremely common in the valley of the Dhoon, 

 and also in the hills, along the banks of streams and rivers, flitting 

 from rock to rock and stone to stone, and eternally shaking and 

 spreading its tail." — Hutton. 



17. Ruticilla erythronota, Eversman. 



Syn. Sylvia erythronota, Eversm. Addend. Pallas, Zoogr. Fasc. ii. 

 Ruticilla erythronota, G. R. Gray, Gen. of Birds, i. p. 180. Bonap. 

 C. G. Av.p. 297. 



Hab. Caucasus (non vidi). 



ROYAL SOCIETY. 



February 15, 1855.— Thomas Bell, Esq., V.P., in the Chair. 



Note to a paper entitled "Contributions to the Anatomy of the 

 Brachiopoda,"readJunel5,1854. ByThomasH.Huxley,Esq.,F.R.S, 



My attention having been called within the last two or three days, 

 to an error in my paper on the Anatomy of the Brachiopoda, 

 published in the Annals for October, 1854, I beg to be allowed to 

 take the earliest opportunity of correcting it. At p. 289 of that 

 paper the following paragraph will be found : — 



*' In 1843, however, M. Vogt's elaborate Memoir on Lingvla ap- 

 peared, in which the true complex structure of the * heart' in this 

 genus was first explained and the plaited 'auricle' discriminated 

 from the 'ventricle;' and in 1845, Professor Owen, having appa- 

 rently been thus led to re-examine the circulatory organs of the Bra- 

 chiopoda," &c. &c. 



Now, in point of fact, though M. Vogt does describe and accu- 

 rately figure the structures called * auricle' and ' ventricle' in Lin- 

 gula*, yet he has not only entirely omitted to perceive their con- 

 nexion, or to indicate the ' auricular' nature of the former, but he 

 expres!<ly states that the so-called ' hearts' are " simple, delicate, pyri- 

 form sacs" (p. 13). 



I presume that my recollection of M. Vogt's figures was more 

 vivid than that of his text ; for having been unable, notwithstanding 

 repeated endeavours, to re- obtain the memoir when writing my paper, 



* Neue Denkschriften der allgemeinen Schweizerischen Gesellschaft fiir die 

 gesammteu Naturwissenschaften. Band VII. 



