I92I. 



S. L. HORA : Notes on Fi'ihes. 



15 



disc consists of an oval callous portion in the middle, with its 

 longest diameter at right angles to the length of the fish and a well- 



B. 



D. 



Parapsiloyliynchus discophoriis, sp. nov. 



A. Lateral view of the type-specimen, x 2. 



B. Dorsal surface of fiead of the same, X 3. 



C. Ventral surface of fiead of the same, X 3. 



D. Anterior part of the ventral surface of head of the same, X 9. 



defined tubercular border anteriorly, but becoming obscure behind. 

 The opercular borders meet a short distance behind the mental 



