Anatormj of the Kingfishers. 109 



Fiirhringer. The second is on the distal edge, arising chiefly 

 from the deltoides, bjit partly from ihe pectnralis ; it is the 

 "a," of Fiirbringer, and, as in C. maxima, is inserted to the 

 extensor metacarpi, distad of the main tendinous mass. The 

 third, the " ^" of Fiirbringer, is m.edian, and arises chiefly 

 in the line of the pectoral/s contributor to the system. In 

 Snuropatis chloris (Plate IV. fig. 4) and the other species I 

 dissected {S. albicilla as shown by Beddard (4), fig. 3, very 

 closely resembles the others) the fasciae are much reduced, 

 while the thickenings assume independent identity as tendons. 

 The tendon on the humeral side obviously is homologous 

 ■with the corresponding thickening in C^rijle alcijon, and is 

 the ''7" of Fiirbringer. The pe(^toralis contribiition and 

 the distal thickening unite, and then diverge distally into 

 two branches — one, the "/5" of Fiirbringer, bending towards 

 the humeral edge, joining with the tendon of insertion of 

 "7," and forming a fan-shaped extension over towards the 

 ulnar edge of the forearm ; the other turning wristwards is 

 the "a" of Fiirbringer. In Bacelo (Plate IV. fig. 1) there 

 is a still smaller extent of undifferentiated fasciae, and the 

 appearance is that of two parallel tendons joined by a sloping 

 band : the figure makes the homologies of these obvious ; 

 the parallel tendons are a and 7, with ^ running down from 

 a to 7. In Cittura both species are alike in this matter 

 (Plate V. fig. 7) ; the tendons are distinct and are not united 

 by fasciae, their condition obviously being a simple modi- 

 fication of that found in Satiropafis — «, yS, y being distinct 

 distally, but /3 and a. joining more proximally after origin 

 from the pectoralis and distal peak of the deltoides patagialis. 

 In Halcyon rufa (Plate V. fig. 9) «, (3, and y are distin- 

 guishable distally; in Beddard's figure [l, fig. 1) a is more 

 separated from the common mass distally, and is therefore 

 more like the condition in H. pileata (Plate V. fig. 8); 

 but higher up all three blend into a single round tendon. 

 In Ceryle americana (Plate IV. fig. 5) and in Alcedo 

 (Plate V. fig. 10) «, /3, and 7 are distinct at their insertions, 

 but, proximally, arise from a single well-rounded tendon. 

 In Ceryle inda (Plate V. fig. 6) — and Ceyx rufidorsa closely 



