Nachdruck verboten. 
Übersetzungsrecht vorbehalten. 
Notes on the genus Microcotyle. fes 
Ill. 
Na u 
al / a! Y\ USt 
G. A. MacCallum, M. D. 
(From the Department of Pathology, College of Physicians & Surgeons, 
Columbia University, New York.) 
With 3 figures in the text. 
M. centropristes n. sp. 
This form is found in very limited numbers upon the gills of 
the sea bass (Centropristes striatus), never, so far as observed, being 
abundant enough to affect the welfare of the host. 
The worm is short and thick with a short stubby sucker disc 
supporting only thirty-five or forty-five suckers which have a chiti- 
nous armature quite similar to that of M. angelichthys, although much 
more heavily built and with rather longer lateral spines. These 
suckers are all quite alike in form and of about the same size. 
The mouth is peculiar in that the lips are corrugated and the 
orifice subterminal. The mouth suckers are relatively large and 
round, and along the anterior margin there is a row of minute teeth. 
There is a partition which is often rather indistinet. In some 
specimens there can be seen a clear sac-like space behind each 
sucker as though there were a coecum connected with the sucker. 
The pharynx is muscular and is followed by a rather long oeso- 
phagus which divides into the intestinal rami. 
Zool. Jahrb. XXXVIII. Abt. f. Syst. 6 
