ON THE CAUDAL AND ANAL FINS OF GOLD-FISHES. 265 



EXPLANATION OF FIGUBES. 

 PLATE XVIII. 



Fig. 1. Dorsal view of a gold-fish belonging to the breed "Kiuldu." Natural 

 size. P., pectoral fin ; V., ventral fin ; C, caudal fin; D., dorsal fin. 



Fig. 2. Lateral view of the same gold-fish. Half natural size. A., anal fin. 



Fig. 3. Part of the ventral view of the same gold-fish, showing the paired 

 aual fin A. An., anus. 



Fig. 4. Dorsal view of a gold-fish belonging to the breed " Maruko," other- 

 wise called the "Corean breed." Half natural size. Dorsal fin absent ; head and 

 face with protuberances. Tail three-lobed. 8., a sickle-shaped appendage on the 

 dorsal edge of the tail. 



Fig. 5. Part of the same viewed from the ventral side and showing the paired 

 anal fin. 



PLATE XIX. 



Fig. 6. Caudal skeleton of Cyprinus carpio L. Natural size, a, h, c, d, e, 

 f, g, hypural bones, /t., a slender bone freely attached to the urostyle; left piece 

 of the pair. 



S.A., " falscher Dorn " 



/., lancet-shaped process. 



l.v.c, the last recognizable centrum. 



7)./t., haemal spine of the penultimate centrum. 



aj^.h., the same of tlie anti-penultimate centrum. 



l).v.c., penultimate vertebral centrum. 



■p.n., neural spine from the penultimate centrum. 



a.p n. the anterior of the two neural spines proceeding from the antipenul- 

 timate centrum. 



a.p.n., the posterior neural spine of the same. 



a.p.v.c, anti-penultimate vertebral centrum. 



v., urostyle. 



i.h., inter-haemal spines. 



J., anal fin. 



Fig. 7. Caudal skeleton of a gold-fish with tri-lobed tail, much enlarged pos- 

 terolateral view. The left lower lobe of the tail-fin is omitted. Most of the letters 

 are same as in Fig. 6. 



«'•> /•> 'J -^ p'.h'., a'.p'.h'., show the right halves of hypural bones, corres- 

 ponding to e., /., ij., p.h., a. ph., of the left. K., the free cartilaginous nodule. 

 The cartilaginous terminal caps of hypural bones are colored blue. D.L., the 



