GIANT TVETLE FEOM QUEENSLAND LOWEE CEETACEOUS. LONGMAN, 27 
end is missing from tlie mesial process, but the curves shown evidence a more 
globose form than the obtusely pointed process seen in adult (but not in 
immature, where it is spherical) specimens in the Queensland Museum. On the 
outer or ulnar edge the portion preserved somewhat resembles Lytoloma 
(Eticlasies) gosseleti, Dollo,*^ but the distal curves of the head do not suggest a 
very bulky lateral process adjoining. Just prior to the fracture, the terminating 
of the intertubercular fossa is marked by an ascending process (Fig. 2, B), which 
is the commencement of the tubercular mass adjoining the lateral or radial 
process. 
In section the elliptical contours of this bone, the axes of 'which are set at 
right angles to each other, correspond closely to those of G, mydas. Dimensions: 
Max. diam. head, 150 mm. ; max. diara. through head and shaft, 203 mm. 
Vai’ious forms of Testiidinate humeri have been studied and figured by 
Wieland,"' who points out that they furnish as readily distinguishable and 
important characters as the carpus. Our bone is undoubtedly of the thalassic 
H 
Fig. 2. — Cratochelone hevneyi- Proximal end of Peft Humerus : palmar view. 
H, head ; MP, mesial process ; B, base of tubercular mass. 
DeJ. C. V. RofiHiter. 
^Dollo, Geoi. Mag., June 1888, p. 20G, fig. 2. 
^Wieland, Evolution of the Testudhiate JInmerus,'' Amer. Journ. Sci., 1900, p. 419. 
