324 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



passing- along lower third of caudal peduncle; origin of dorsal slightly 

 nearer tip of snout than tip of caudal tin; the tin high, its anterior rays 

 nearly equaling head in length; base of anal oblique, the free edge 

 somewhat concave, the longest rays 1.3 in head; caudal tin lunate; 

 ventrals and pectorals moderate, the latter falcate. 



III'.S MESEMBRINIM. 



Color in alcohol, 3'ellowish-silvery, without markings anywhere. 

 Two other specimens, Nos. 12072 and 12078, from Kotosho. 

 Tyj)e. — No. 12235, a specimen 3.5 inches long, from Kotosho, For- 

 mosa =71 30 Stanford University Museum. 



25. DILLONIA, species. 



Allied to Dillonia aculata Cuvier and Valenciennes. Head shaped 

 as in Scd'pModon. Mandible with barbels; D. 10; A. 11; scales 39. 



The specimen of this species from Formosa has been mislaid, and 

 nothing more can be said of it at present. 



Family MONOPTERID^. 



26. MONOPTERUS ALBUS (Zuiew). 



Head 10.5; tail 3.5 in rest of body; No. 12066, F. I. 



In another specimen, perhaps not the same species (No. '6-\i\:6^ Hokoto), 

 the tail is a little longer, more than one-third rest of body, and the 

 head 11.5 in length. Much more material is necessar}- to ascertain 

 whether more than one valid species of MonojAerus exists. 



