Dr. J. E. Gray on a new Australian Tortoise. 43 



DANISH SPECIES. 



Dyschirius. 



A. Superior palparia on both pair of palpi of the male very large, extend- 



ing over the whole length of the joint. 



a. Clypeus tridentate. Ligula extended at the apex, with pointed cor- 



ners. Marginal strice of pronotum continued past the second pair 

 of bristle-points. Marginal strice of elytra continued to the base 

 of the latter. External teeth of anterior tibice pointed. Pronotum 

 round. Elytra ovate. 



1. D. thoracicus, Fabr., fr. 2. D. obscurus, Gyllh., fr. 



b. Clypeus bidentate. Ligula gradually attenuated, with round apex. 



Marginal strice of pronotum terminating in the second pair of 

 bristle-points. Marginal stria of elytra ceasing at the shoulder. 

 External teeth of anterior tibice pointed. Pronotum oblong, round. 

 Striae of elytra dee})]y punctate, smooth towards the apex. 



3. D. (Bneus, Dej., fr. 4. D. salinus, Er., fr. 



c. Clypeus bidentate. Ligula gradually acuminated, with round apex. 



Marginal strice of pronotum wanting. Marginal strice of elytra 

 ceasing at the shoulder. External teeth of anterior tibice 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 strice ofjjronotum continued beyond the second pair of 

 bristle-points. Marginal strice of elytra ceasing at the shoulder. 

 External teeth of anterior tibice 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., 

 Icevistriatus, Fairra. & Laboulb.), fr. 



Yll.— Description of a new Australian Tortoise (Elseya lati- 

 steruum). By Dr. J. E. Gray, F.R.S. &c. 



In the 'Annals and Magazine of Natural History^ for 18G3, 

 vol. xii. pp. 98 & 246^ I described a species of Chehjmys uuder 

 tlie name of Chelymrjs dentata. In that paper I proposed to 

 divide the genus into two sections, the one having and the 

 other being destitute of a nuchal shield. In the collection from 

 North Australia there are two specimens of the animal in spirits, 

 which show that the animals of the Chelymydes without a nuchal 

 shield diflFer 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 



