246 Transactions. — Zoology. 



feature in other genera. Eyes are of medium size, the 

 distance en 'proHle from the extreme tip of the snout to the 

 anterior margin of the orbit being more than twice the 

 diameter of the orbit. The nostrils are a single aperture on 

 each side, two -lipped, the lips rising from the base with 

 merely a suspicion of a tube. Height of the branchial orifice 

 equals profile distance from centre of nostril to end of snout. 

 Distance from tip of snout to rearmost upper horn of branchial 

 aperture is contained more than three times in total length to 

 root of caudal. The vertical from anterior origin of dorsal 

 falls in advance of origin of anal, whilst vertical from posterior 

 termination of base of dorsal cuts median line of base of anal. 

 Length of base of dorsal equals least depth of body at origin 

 of caudal, and length of base of anal is an eighth less than 

 that of dorsal. Inclusive of soft pad at foot, the height of 

 dorsal exceeds that of anal by two-fifteenths. Basal termini 

 of anal and dorsal are respectively distant from origin of 

 caudal their own free heights. These two fins are fat and 

 fleshy. Pectorals are broad and short, in extreme length 

 equalling the basal length of anal. Extreme length of caudal 

 equals distance between centre of orbit and superior extremity 

 of "horn" of branchial orifice, or also distance between 

 termini of bases of anal and caudal. Vertical of posterior 

 margin of pectoral is a trifle less than the median line between 

 tip of snout and origin of free portion of caudal. There was 

 no fold whatever along lower side of fish. 



Fin-ray formulae : D., 15 (first very short) ; P., 14 ; A., 14 ; 

 C, 9. Total length of fish, 8-5in. Total depth (immediately 

 after death, before tissues were contracted by immersion in 

 alcohol and glycerine, and when the inflation had subsided), 

 3"5in. Height of dorsal (free portion), l-16in. Height of 

 dorsal (inclusive of pad), l-4in. Width at base of dorsal (free 

 part), 0-7in. Height of anal (free part), 0-96in. Height 

 of anal (inclusive of pad), 1-lin. Width of base of anal, O'Sin. 

 Extreme length of caudal, l'45in. Extreme spread of caudal, 

 2-7in. Extreme length of pectoral, 0-8in. Extreme spread 

 of pectoral, l-6in. Extreme diameter of orbit, 0-35in. Width 

 of branchial aperture, 0'45in. Least depth of body at origin 

 of caudal, 0-7in. 



Top of head rather broad and flattened, as is the anterior 

 part of back, getting more rounded towards origin of dorsal. 

 The interorbital space almost equals the distance between 

 superior margin of branchial orifice and posterior edge of 

 orbit, and about equals height of free portion of dorsal. Belly 

 very rounded, sides flattening a little towards tail, but keep- 

 ing fairly plump, which last term decidedly indicates the 

 whole appearance of the fish when alive and in a quiescent 

 state. 



