of the Lesser Bird-of- Paradise. 



449 



developed. It rises, in common with, but dorsad of, the 

 cucullaris propatagiaHs, from the wall of the skull imme- 

 diately behind, and slightly above the postorbital process ; ex- 

 panding upwards and backwards to tbe middle line, it covers 

 the base of the skull, and thence runs back immediately 

 under the skin, at first as a broad sheet, but rapidly tapering 

 it assumes a narrow band-like form, and just caudad of the 

 scapula fuses with the latissimus dorsi dorso-cutaneus. Being 

 closely attached to the under surface of tbe pteryla colli 

 dorsalis and spinalis on either side, it serves, on contraction, 

 to raise the dorsal feathers of the neck and fore part of the 

 back. By its contraction, in the spirit-specimen, the skin is 

 thrown into a number of fine wrinkles. 



^ fi.ct.fi). 



^ fi.ee. a-.r 



Side view of a dissection of Sericulus melinus, shewing the muscles 

 corresponding to those drawn in text-tig. 31. Note that the pars 

 anterior has but one head, answering to the hinder head seen in 

 P. minor. — Letters as in text-fig. 31. 



Latissimus dorsi dorso-cutaneus. — This muscle is also well 

 developed. It arises fleshy from the anterior border of the 

 pre-ilium and extends forwards along the border of the 

 pteryla spinalis until it ultimately passes into the cucullaris 

 dorso-cutaneus. 



Cucullaris pars cervicalis. — Arising from the expanded 

 free end of the clavicle, caudad of the tendons for the tensor 



