'jy. MlbUUK.NUS. 345 



a. Adult. Holland. From Dr. Blcekcr's Collection. 

 h. Adult : skin. Holland. From Grouow's Collection. 



c. Adult. Germany. Purchased of Mr. Brandt. 



d, e. Adult and halt'-grown. South Germany. 

 f\;/,h. Adult and half-grown. 



i-k. Half-grown. Switzerland. From Prof. Agassiz's Collection. 

 Z. Skull. Berlin. From Dr. A. Giinther's Collection. 



2. Llisgurnus anguillicaiidatus. 



Cobitis anguillicaudata, Cantor, Ann ^- Maf/.Ndt. Hist. ix. 1842, p. 485; 



Richards. Voi/. tSnfph. Fkh. p. 143, pi. ho. figs. 9-10. 

 bifurcata, J/' Clcll. Calc. Journ. Kaf. Hist. iv. 1844, p. 400, tab. 



23. tig. 1 (bad). 



pectoralis, M'Clell. I. c. fig. 3 (\ar. with elongate pectoral fins). 



micropus, Cuv. >!j- Val. xviii. p. 20. 



psamniisnius, Hichards. Ic/ithi/ol. Chin. p. 300. 



rubripinnis, Schley. Faun. Japon. Poiss. p. 220, tab. 103. fig. 1. 



maculata, Schloff. I. c. p. 221. fig. 2. 



decemcilrhosus, Jiasilewsky, Mem. Soc. Nat. Mosc. 1855, p. 239. 



Cobitichtbys onalios, Bleek. Act. Soc. Sc. Indo-Neerl. viii. Japan, vi. 



p. 88, tab. 2, fig. 4 (vai". with long pectoral fins). 



D. 9. A. 7-8. V. 6-7. Vert. 29/19. 



Scales very conspicuous. Barbels ten, four belonging to the man- 

 dible. Origin of the dorsal fin, midway between the root of the 

 caudal and occiput. Pectoral fin generally shorter than, but some- 

 times at least as long as, the head. Body and fins irregularly dotted 

 with brownish black ; generally a small black spot superiorly on the 

 root of the caudal. 



China ; Japan ; Chusan ; Formosa. 



A most complete series of examples has convinced me that this 

 species, which represents M. fossilis in Eastern Asia, is extremely 

 subject to variation, and that all the names enumerated above refer 

 to nominal species. Specimens well fed have the body much deeper, 

 and particularly the tail is dilated by fatty layers along the iipper 

 and lowe^- rudimentary caudal rays. Form of the head and size of 

 the eye vai much ; on the whole, young examples have the head 

 lower and more elongate. The pectoral fins are generally short ; and 

 this, beside the coloration, is the chief character by which this spe- 

 cies is distinguished from M. fossilis. However, sometimes these fins 

 are as long as in the Exiropean species, and even longer. None of 

 these valuations depend on certain localities. 



a, b-c, d-e. Adult. China. 



/. Half-grown. Nino;po. Purchased of Mr. Cuming. 



f/, h, i, I; I. Many adult and half-grown specimens. Chusan. From 



Dr. Cantor's Collection. — Types of the species. 

 m-q. xVdult. Formosa. From Mr. Swiuhoe's Collection. 

 r-s. Adult. Japan. From the Leyden Museum, as Cobitis enjthro- 



pterus. 

 t. Adult. Japan. From the Leyden Museum, as Cobitis Juenutto- 



j)terius. 



