433 



loins. Seven pairs of ribs directly join the sternum, which consists of four bones. The can- 

 cellous structure of the divided parts of the vertebrae is light and open. 



Presented by Prof. Owen, F.E.8. 



2392. The skull of a Hedgehog (Erinaceus europ&us). 



The squamosal is traversed by a vertical venous canal. 



Presented by Henry Cline, Esq. 



2393. The skull, wanting the lower jaw, of a Hedgehog (Erinacew europeeus). 



There are two oblong vacuities in the palatal bones. The malar is applied, like a splint, 

 along the outer and under side of the junction of the zygomatic with the maxillary. 



Mus. Brit. 



2394. A portion of the cranium of a Hedgehog (Erinaceus europaeus). 



It includes the basisphenoid, alisphenoids, petrosals, tympanics, squamosals, and the right 

 half of the hyoidean arch, besides the palatine and pterygoid bones ; and belonging to the 

 same skull, but detached, are the orbitosphenoids, presphenoid and vomer, the prefrontal, 

 nasal and turbinal bones. 



Hunterian. 



2395. The bones of the left fore-arm and fore-foot of a Hedgehog (Erinaceus euro- 



The carpus consists of a scapho-lunar bone, cuneiforme and large pisiforme, trapezium, 

 trapezoides, magnum and unciforme. A sesamoid is attached to the outside of the base of 

 the metacarpal of the digitus minimus. 



Hunterian. 



Hunterian. 



2396. The bones of the left hind-foot of the same European Hedgehog. 



The ecto-cuneiforme and cuboides are elongated. 



Genus Gymnurus. 



T. . , /. i 3 3 1 1 * 3 3 



Dental formula : t , c , p , m jzj=44. 



2397. The cranium of the Sumatran Gymnure (Gymnurus Rafflesii). 



The canines of the upper jaw have each two roots. The bony palate is entire. The pre- 

 maxillaries join the anterior half of the nasals. The lacrymal perforation is in a small fossa 

 at the fore part of the orbit, which is not denned from the temporal fossa. The zygomatic 

 process of the squamosal is long and slender, joining that of the maxillary, but not strength- 



3K 



