256 



PROCEEDINGS OF THE ACADEMY OF 



[Apr., 



key, "distance from snout to dorsal considerably more than 3 iiL 

 length with caudal." My example would show it about 2f, nearly 

 in agreement with his figure. 



SILURID^. 

 PIMELODIN^. 

 Megalonema rhabdostigma sp. nov. Fig. 10. 



Head 3|; depth 4i; D. I, 6; A. iv, 9, i; P. I, 9; V. i, 5; head 

 width If in its length; head depth at occiput 1|; snout 2yV; eye 

 5|; maxillary 2|; mouth width 2^^ ; interorbital 4; antero-internasal 

 5^; dorsal spine, and flexible tip. If; length of adipose fin about 

 If; first branched anal ray 2; least depth of caudal peduncle 4|; 

 upper caudal lobe about 1|; pectoral 1^; ventral 1|. 



Fig. 10.— Megalonema rhabdostigma Fowler. (Type.) 



Body moderately compressed, anteriorly slightly robust, deepest 

 at dorsal origin, and edges all convex. Caudal peduncle moderately 

 compressed, deast depth about 2 in its length. 



Head moderately robust, upper profile but very slightly undulate 

 from snout tip to occiput and dorsal origin, and a little more inclined 

 than lower profile, convex sides slightly converge convexly above 

 and very broad below, with under surface but slightly convex. 

 Snout broadly depressed, surface nearly level, its length about Ij 

 its greatest width, or head width opposite front of eyes. Eye large, 

 superior, ellipsoid, centre slightly behind middle in head length. 

 Eyelids frec^, without adipose develo]:)m(Mit. Mouth large, broadly 

 transverse, commissure short and with folded groove at each corner 

 reaching })ack opposite last | in snout length. Broad band of 



