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Show 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 deduced 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 oi Bagrus lonah, Sykes ; and in the two recorded descriptions of these specimens given in the ' Catalogue of Fishes ' we find:- Glyptosternum lonah, apud Gunther. A. 12. Pectoral spine with a fine outer and with a strong inner serrature. G. dekkanense, Gunther. A. 11. Pectoral spine strongly serrated 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, Gunther, not synonymous with B. lonah, Sykes ; and perhaps the name G. sykesi might be considered appropriate. 7. Note on the Caecum of Canis cancrivorus. B y A. H . G A R R O D , 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 dissection 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 Canidse 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 |
