Dr. J. E. Gray on a new Australian Tortoise. 43 
DANISH SPECIES. 
DyYSCHIRIUS. 
A. Superior palparia on both pair of palpi of the male very large, extend- 
- ing over the whole length of the joint. 
2 Siiewas tridentate. Ligula extended at the apex, with pointed cor- 
ners. Marginal strie of pronotum continued past the second pair 
of bristle-points. Marginal strie of elytra continued to the base 
of the latter. External teeth of anterior tibie pointed. Pronotum 
round. LHlytra ovate. 
1. D. thoracicus, Fabr., fr. 2. D. obscurus, Gylih., fr. 
b. Clypeus bidentate. Ligula gradually attenuated, with round apex. 
Marginal strie of pronotum terminating in the second pair of 
bristle-points. Marginal strie of elytra ceasing at the shoulder. 
External teeth of anterior tibie pointed. Pronotum oblong, round. 
Striz of elytra deeply punctate, smooth towards the apex. 
3. D. teneus, Dej., fr. 4. D. salinus, Er., fr. 
¢. Clypeus bidentate. Ligula gradually acuminated, with round apex. 
Marginal strie of pronotum wanting. Marginal strie of elytra 
ceasing at the shoulder. External teeth of anterior tibie obtuse. 
5. D. gibbus, Fabr. 
B. Superior palparia on the labial palpi very large, extending over the 
whole length of the joints, those on the maxillary palpi reduced to a 
small spot behind the apex of the joint. 
Clypeus bidentate. Ligula gradually acuminate, with round apex. 
Marginal strie of pronotum continued beyond the second pair of 
bristle-points. Marginal strie of elytra ceasing at the shoulder. 
- External teeth of anterior tibie indistinct. Pronotum oblong. 
6. D. inermis, Curt.,r. 7. D. politus, Dej., m.fr. 8. D. im- 
punctipennis, Daws. (Geod. Brit. 29. 6 = arenosus, Putz., 
levistriatus, Fairm. & Laboulb.), fr. 
| VII.—Description of a new Australian Tortoise (Elseya lati- 
sternum). By Dr. J. HE. Gray, F.R.S. &e. 
In the ‘Annals and Magazine of Natural History’ for 1863, 
vol. xii. pp. 98 & 246, I described a species of Chelymys under 
the name of Chelymys dentata. In that paper I proposed to 
divide the genus into two sections, the one having and the 
4 other being destitute of a nuchal shield. In the collection from 
: North Australia there are two specimens of the animal in spirits, 
q which show that the animals of the Chelymydes without a nuchal 
shield differ greatly from those of the typical Chelymys ; and they 
are particularly interesting (as forming a passage between the 
Hydraspides of Australia and South America) in having a pair of 
beards in the front of the chin, a warty upper surface to the 
neck, and scaly temples—all characters absent in most of the 
Australian species, but generally present in those genera of the 
ie oy ee a. 
eke, sili, th 
