150 THE MYOLOGY OF THE RAVEN. 



rudimentary condition, though we have no trouble in 

 making it out. 



It arises from the lower and posterior end of the 

 medius metacarpal, and from the adjacent tendon of the 

 preceding muscle ; at least its meagre carneous portion 

 does, but its rather strong tendon, which has the same 

 osseous origin, is continued directly to its point of 

 insertion, the apex of the medius digit. So that in 

 function this muscle in the Eaven is rapidly coming to 

 play the part of a posterior ligament to this joint, and 

 securely splices this now almost useless little finger to 

 the next digit by aid of the surrounding tissues, and 

 thus keeps it out of harm's way. 



auf die proximale Halfte beschrankt, doch recht stark sein z. B. bei 

 Bucorvus und Podargus 



" Insertion. Die kurze starke Sehne verlauft an der Innen- 

 Vorder Kante des Metacarpale II. und inserirt sich am Innen- 

 Vorderhocker der Basis phal. I. dig. II." 



In referring to Selenka's work in Bronu's Thier-Reic/is (vi. Band, 

 p. 137), as noted in the above synonymy, I find that that anatomist 

 defines this muscle, his No. 70, as the abductor digiti minimi, and I 

 have every reason to believe that this muscle corresponds with my 

 No. 89, the abductor minimi digiti. 



"97. M. FLEXOR POLLICIS. 



Anzieher des Daumens (Adductor pollicis}. Wiedemann, p. 94 

 Schopss, No. 43; Heusinger, p. 191, No. 31 ; Selenka, p. 138, 

 No. 74. 



Anzieher oder Einwartszieher (Adductor pollicis). Tiedemann, 282. 



Ohne Namen. Meckel, p. 349, No. 4. 



Eiiiwartszieher des Daumens (pt.). Prechtl, 65. 



Les courts Jlechisseurs du pouce. Alix, p. 418. 



Flexor pollicis brevis. Carlsson, p. 28." (Bronn's Klassen, &c., p. 

 288.) 



Gadow also describes another muscle (No. 100 of his list), the 

 m. extensor pollicis brevis (loc. cit., p. 291), of which he says that 

 " So wird er bei den Corvidai von Schops als nicht gef unden, von De 

 Man als zweifelhalf angegeben." 



