16 — 
Rhamdiogdanis n- geri. 
New genus of Pimelodinae, allied to Rhamdia. 
General shape as in Rhamdia, but differing by its 
small eyes (6 in snout), very short barbeis (not passing 
gill-openings); first pectoral not spiny but, except its 
hardened basal third, weak and thin; first dorsal fin 
likewise so. Fontanel not continued -behind eye; occi¬ 
pital process very short and thin. Body much elongated 
and slender. 
Type of the germs: Rhamdioglanis frenatus n. sp. * 
Rhamdioglanis frenatus n- sp. 
D. I, 6; A. I, 9-10; V. I. 5; P. I, 8-9. Head 5-5 % 
times in lengtli of body; widtli oí head 1 ocular diameter 
shorter than or equal to lengtli of head. Depth below 
dorsal spine 3 times in distance from tip ot snout to 
first dorsal ray. 
Body much elongated, slender, widest at the thorax, 
much compressed at the caudal; liight of caudal 2 % 
times in length of head. Snout much rounded. Head much 
flattened; its liiglit x /^ ocular diameter shorter than snout; 
otherwise head more or less like that of Rhamdia; 
covered with skin. Occipital process very small or nearly 
wanting. Fontanel ver)' indistinct, hidden, reduced to a 
depression in the middle of the eyes. Nares separated by 
a distance which equals that between the posterior pair, 
or from there to the eye. 
Eyq oval, 1 diameter behind middle of head, 3- 
3 ] /2 in tlie interorbital; interorbital 1 % in snout. Ma- 
xillar barbei very short, extending somewhat behind 
