202 SHUFELDT. 



The metatarsal of the little toe is almost as stout as, and considerably 

 longer than, hallux metatarsal, and as in many other mammals it deve- 

 lopes a process proximad that projects from the side of the foot. This 

 is the tuberosity of the fifth metatarsal; in man and probably in many 

 other mammals the peroneus brevis muscle is attached to it. 



The distal phalanges as well as the greatly compressed ungual joints, 

 closely resemble those of manus and consequently reqiiire no special 

 description. 



At the side of the foot, a short distance back of the hallux meta- 

 tarsal and apijarently encased in the lateral ligaments in that locality, 

 there is a large, fiat, quadrilateral sesamoid. It is on the tibial side of 

 the tarsus and rests, flatwise, on the scaphoid and internal cuneiform 

 bones. Baur took this to be the rudimentary tarsale tibiale in which 

 he was doubtless mistaken, as it is sesamoidal in all its characters.-* 



It would appear that no special name has as yet been bestowed upon 

 this. bone, so it might conveniently be known as the tarsal sesamoid. 



There are other sesamoids in the sole of this foot, and they agree in all 

 particulars with the corresponding ones in the hand. We see them, 

 proximad, just within the tarsophalangeal articulations, a pair back of 

 each joint, and very much smaller pairs in the row of joints beyond. 

 Occasionally specimens are foimd having a few very small sesamoids in 

 the sole of pes, and in the partly cleaned skeleton the palmar surface of 

 the process projecting backward from the scaphoid may easily be mistaken 

 for one, as it is exposed there and has the same elliptical form. 



jSTo tendon of any of the muscles in Cynocephalus has been found to 

 ossify, nor have there been, beyond the rings of the trachea, any other 

 ossifications met with in this animal. 



So much then for the osteolgy of Cynocephalus, the caguan, the 

 aberrant insectivore of certain islands of the Indian Archipelago, whicli 

 we know is certainly no lemur. 



THE HYOID ABCHES AND THE LAEYJSX. 



As stated above the specimens here described lacked the hyoid arches 

 and the trachea. This I communicated to Mr. McGregor by letter and 

 in due time received the following repl}' from him. 



I have, unanswered, your letters of October last and of January of this year 

 [1909.] I am glad to know that you have a paper on Galeopithemts roughed 

 out and I will hope to be on hand to see it copied and to read the proof for it. 

 I regret that the specimens sent you were incomplete. They were prepared in 

 the field by my assistant at a time when we had a great press of other work 

 and you know what that is in a hot climate. I am fortunate in having on 

 hand a pickled specimen of the lemur from Basilan, doubtless the same species 



^ Amer. Nat. (1885), 19r 349. This bone has also been discovered to exist 

 in Hyrax, the duckbill, certain Rodentia, and in some of the Edentates. 



