252 



Bach, welcher in den Fluß Rabiai mündet, 15 Exemi)lare 59 — 119 nun. 

 Bach Wai Semie, 10 - 90—18 - 



Bach Wai Meniel, 226 - 89—12 - 



Fluß Bajon, 1 - 96 - 



Ich habe mir erlaubt diese Art nach meiner Frau zu benennen, 

 die mich auf meiner Sammelreise begleitete und mir alle Hilfe bot. 

 Auf dieser Reise besuchten wir auch die bezüglich ihrer Süßwasser- 

 fauna noch ganz unerforschte Insel Ceram. Von Melanotaeniinae 

 fanden wir dort keine Spur, so daß wir annehmen dürfen, daß die 

 ]\relanotaeniinae im Indischen Archij^el in Waigëu ihre westliche 

 Grenze erreichen. 



3. On the modifications of the Circuii in the scales of Asiatic Cyprinid fishes. 



I>y T. D. A. Cockerell aud Evelyn V. Moore T'niversity of ('ulorado . 

 ("With 5 figures.) 



eingeg. 4. August 1910. 



The sculpture of a Cyprinid scale consists principally of two distinct 

 elements, the radii and the circuii. The radii are the strong lines radi- 

 ating from the central region toward the margin, while the circuii are 

 the fine concentric lines crossing the radii. At first sight, it might seem 



Fig. 3. 



Fisr. 1. 



'■^^■^P^V.. 



Fisr. 2. 



Fig. 1. < tpsariicidhijx ìiiorrisotìii [0. lilatypus). Ningpo, China jStyanj. A fish with 

 l)ars like Barilius. The two larger lines are apical radii; they are crossed by nume- 

 rous irregular lines, which are the lines of growth, comparable with those on a 

 molluscan shell. The circuii are the numerous fine vertical lines, which fail in the 



apical field, but are seen to have no connection with lines of growth or radii. 

 Fig. 2 and 3. Barhicìdìiys lacvis. W. Siam (C. Bock). Fig. 2 shows, greatly magni- 

 fied, the breaking up of the cii'culi in the apical field to form pustulose markings, 

 which are highly characteristic of certain Asiatic genera. Fig. 3 shows the same 

 thing less magnified, with the nuclear ends of the anneal radii. 



that the circuii were simply lines of growth, like those on a snail's shell, 

 but closer study shows that this is not the case, and in fact they appear 

 to be fibrillae which were primitively longitudinal, as may still be seen 

 in that ancient type Amia cal va (cf. Smithsonian INIisc. Coll., Vol. 56 

 no. 3, p. 2 fig. 3). 



