782 DESCRIPTION OF APHANTOPHRYNE, 



which possesses undoubted affinities to A.pansa, Professor von 

 ATehely* has figured the coraco-radialis as plainly discernible in 

 front of the pars epicoracoidalis. 



The pectoralis cuiaveus is absent in all three frogs under dis- 

 cussion. In K. pulchra, as in Hemisus yuttat^im, Xenophrys 

 moiiticola, and Megalophrys nasuta, the septum dividing the 

 thoracic and abdominal lymph-spaces is distinct, but is not 

 invaded by muscle-fibres. 



In L. dorsalis, there is a well-developed coracobrachialis 

 lovyus (Plate Iv., fig.3, cbL). In front of this is a coraco-brachi- 

 alis brevis internns (ebb.) which, although not so large as the 

 Hrst-ment,ioned muscle, is nevertheless stronger than the same 

 muscle in R. escnlenta.] Both these muscles are hidden by the 

 pectoralis sternalis. 



I am doubtful whether the muscle horaologised with the 

 coraco-humeralis in A. pansasind K. pulchrais correctly so called. 

 In the former, its fibres border the distal half of the coracoid 

 posteriorly, attaching to that edge of the bone; in the latter, 

 however, the muscle arises from the whole length of the coracoid, 

 and a few fibres seem to originate on the sternal plate. This 

 last condition is almost the same as in R. esculenta, and althouah 

 A.pansa differs somewhat from it, K. pulchra seems to exhibit 

 no features which supply grounds for doubting its identity. In 

 this last species also, a slight indication of a separation of the 

 fibres into a more anterior band is noticeable; these probably 

 represent a coraco-brachialis brevis internus. However, my 

 material is so poorly preserved, that I am unable to come to anv 

 definite conclusion at present. 



The deltoid (Plate Iv., fig.2, dl.) of A. pansa is weak and tape- 

 like. A pars episternalis is wanting. The same muscle in K. 

 pulchra (Plate Iv., fig.l, dl.) is much stronger and broader, but 

 is otherwise identical. In L. dorsalis, there is a distinct pars 

 episternalis (Plate Iv., fig.3, die.) the fibres of which originate on 

 the omosternum. The portio scapularis is overlain by the 

 mylohyoideus. 



* V. Mehely, Termt^s. Fiizetek.. xxiv., 1901. vii., fig.6, rr. 

 t Hortinann, /oc, cit., Taf, xvii., tigs.b-S, cbhi. 



