748 MR. A. H. GARROD ON THE [Nov. 18, 



been better had he stated probably the types, as apparently authority 

 does not exist to say "the types " were given to the India-House 

 Museum ; whereas I think I have shown good reason for the belief 

 that Sykes brought his collection to Europe, where he arrived in 

 1831, and that portions of his types may be in existence elsewhere. 



I do not say this for the purpose of uselessly drawing attention to 

 Dr. Giinther' s statements, but to a practical fact which may be de- 

 duced therefrom. Thus two specimens of Glyptosternum were found 

 with Sykes's name on the bottle or bottles ; these two appeared to 

 be distinct species not previously described, unless by Sykes, who, 

 however, had merely recorded one species of this genus as Bagrus 

 lonah, and that without giving any figure. 



It appears to have been assumed (I do not say incorrectly so) that 

 one must be the type of Bagrus lonah, Sykes ; and in the two recorded 

 descriptions of these specimens given in the ' Catalogue of Fishes ' we 

 find:— 



Glyptosternum lonah, apud Giinther. A. 12. Pectoral spine 

 with a fine outer and with a strong inner serrature. 



G. dekkanense, Giinther. A. 11. Pectoral spine strongly ser- 

 rated internally. 



In the * Fishes of the Dekhun ' we find it thus stated : — 



Bagrus lonah. A. 10. Pectoral spine " furnished on the posterior 

 edge with long sharp teeth." 



I would suggest whether the names ought not to stand thus, if 

 one (whichl) is in reality Sykes's type : — 



Bagrus lonah, Sykes, = G. dekkanense, Giinther. 



Glyptosternum lonah, Giinther, not synonymous with B. lonah, 

 Sykes ; and perhaps the name G. sykesi might be considered ap- 

 propriate. 



7. Note on the Caecum of Canis cancrivorus. 



By A. H. GtArrod, B.A., Prosector to the Society. 



[Eeceived October 18, 1873.] 



The South-American Canes present peculiarities which have 

 always made it difficult to determine their exact relation to the other 

 members of the family. This difficulty is somewhat increased by 

 the determination of the peculiarities of their visceral anatomy ; for 

 on eviscerating a specimen of Canis cancrivorus I found that the 

 caecum differs from that of other members of the genus. Whether 

 the observed peculiarity holds in other closely allied species, and in 

 other individuals of the same, can only be determined by the dis- 

 section of other specimens as they come to hand. 



On the authority of Profs. Owen and Flower, and of the late Mr. 

 H. N. Turner, the caecum of all the Canidee is uniformly cylindrical 

 and peculiar in being folded on itself twice or three times in a ser- 

 pentiform manner (fig. B). On looking at the distended caecum of 

 the common Dog, with the distal or colic end downwards, the caput 



