of the Radiated Fruit-Cuckoo. 205 



of his dissections, which are fully stated and easy for use 

 in comparison. 



Latissimus dorsi. — The /. d. anterior, whose area of origin 

 from the vertebral column is just a fraction less than one-half 

 of the diameter of the I. d. posterior at its origin, does not 

 appear to me to be so completely fused with the latter as 

 is asserted by Fiirbringer to be the case in the Cuckoos 

 dissected by him. The /. d. anterior slightly overlaps the 

 posterior, and is only actually confluent with, and appa- 

 rently indistinguishable from, the latter for the space of 

 something like 2 mm. at the origin. Fiirbringer speaks 

 of their first becoming separate near the insertion on to 

 the humerus. 



Latissimus dorsi metapatagialis is a slender but obvious 

 muscle. It is inserted in the axilla in common with the 

 rhomboideus superficialis. The breadth of this muscle is 

 about I5 times that of the profundus. The attachment is 

 to about ^ of the scapula, beginning proximally, and to that 

 bone only. 



Rhomboideus profundus of the present species, as in other 

 Cuckoos, arises only from the vertebral column, and is 

 inserted on to the distal half of the scapula. 



Propatagialis. — The arrangement of the muscles and 

 tendons of this system appears to be precisely that of other 

 Cuckoos. A muscular pectoral slip ends in tendons which 

 reinforce the long and short propatagial tendons. There is 

 no biceps slip inserted on to the latter, and the tendon itself 

 is simple and undivided. 



The expansor secundariorum is present, as in other Cuckoos. 



The biceps has, as in other Cuckoos described by Fiir- 

 bringer, a single broad tendinous head, which arises from the 

 acromion, and is " anchored " to the head of the humerus 

 on its way down the arm. 



The anconeus has a long slender tendon affixed to the 

 humerus, in common with the latissimus dorsi. 



The muscles of the fore limb do not appear, so far at least 

 as our present knowledge goes, to afford any characters by 

 which the numerous genera of Cuckoos can be classified. 



