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Show 104 MR. 11. H. BURNE O N [Feb. 19, Distance between the extraorb. angles 13| Width of the free border of the front 6 Length of the front in the middle 1|- Thickness of the carapace 6 Breadth of the orbits 3| Height of the orbits 2\ Length of the chela? 8| Length of the fingers 4| Height of the chelae at the articulation of the d»aec«t ylus 3|- Length of the meropodites of the penultimate pair 8| Breadth of these meropodites 3| EXPLANATION OF PLATE X. Fig. 1. Potamon (Potamonautcs)floweri, n. sp. X fj. 2. Front view of the cephalothorax. X If. 3. The left orbit and the surrounding part of the upper surface, showing a portion of the postfrontal crest and the tooth between the extraorbital and epibranchial angles, viewed from above. X If. 4. Outer foot-jaw. X If. 5. Anterior part of the sternum and terminal joint of the abdomen. showing the thickened ridges near the insertion of the chelipedes. X if. 6. Abdomen. X If. 7. Larger chelne. X 1|. 4. A Contribution to the Myology and Visceral Anatomy of Chlamydophorus truncatus. By R. H. B U R N E , B.A., F.Z.S., Anatomical Assistant in the Museum of the Royal College of Surgeons. [Received February 1, 1901.] (Text-figures 13-20.) The anatomy of Chlamydophorus has received so much attention at the hands of various anatomists that the following notes of the dissection of a specimen1 need some apology. This small Armadillo is not only of extreme rarity, a fact that in itself would warrant ns many descriptions of its anatomy as possible, but in certain of its features-particularly the dermal armature-is so remarkably aberrant, that the determination of its relation to the other Edentates becomes a matter of peculiar interest. There seems little doubt that,from their general similarity of structure, the Armadilloes should all be grouped within one family, and that, within this family, Chlamydophorus lies some- 1 I owe the opportunity of dissecting this specimen to the kindness of Mr. F. W . Lucas to w h o m it belonged, and of Prof. Stewart who entrusted m e with it. |
