Descriptions of Fishes from the Coast of Natal. 51 



torals yellow, white circular line round base of pectorals with smaller 

 yellow circle inside, yellow vertical line at base of pectorals and 

 another below it ; other fins yellowish. Several black vertical 

 bands below line of pectoral extending to belly on each side of 

 body. 



Colour (of preserved specimen), blackish brown above, white on 

 abdomen, with a few scattered small white spots on back, which 

 become more numerous and well defined on the sides from below 

 dorsal fin and especially on free portion of tail ; 4 or 5 subvertical 

 black blotches on each side of abdomen ; pectorals dark near the 

 base, white on outer f , a whitish ring round base including gill- 

 openings. Caudal dark brown. 



One specimen, 135 mm. in length, taken off breakwater, Durban ; 

 from Mr. Eomer Robinson, Natal, who has kindly supplied the note 

 of the colouring when fresh. 



TETRODON HYPSELOGENION, Blkr. 



Teeth about the same size on each jaw. Length of head equals 

 its distance from dorsal fin and is nearly 3 times in total length 

 excluding caudal. Osseous interorbital space narrow and about 

 f diameter of eye, which is prominent, situated on upper margin 

 of head, a little nearer to point of snout than to gill-opening, and is 

 3f times in length of head ; snout If times diameter of eye ; chin 

 prominent and vertical, its depth nearly equals length of snout and 

 is jf length of head ; lower jaw projects beyond upper, mouth 

 small ; posterior nostrils have a prominent papilla on each with 

 two openings ; gill-openings fringed with coarse papillae. 



Dorsal commences in last 3rd of distance from snout to base of 

 caudal ; anterior rays highest ; length of base equals f the height 

 of the fin, which is -f length of head. Anal commences below 

 middle of dorsal, similar to but not as high as dorsal. Caudal 

 truncate. 



Body covered with small spines from interorbital space nearly 

 to dorsal fin, abdomen covered with numerous similar spines; a 

 cross band of small spines across the side to abdomen, behind 

 pectorals ; remainder of sides naked. 



Colour (of preserved specimen), upper half of body dark brown 

 with irregular larger and smaller whitish spots ; lower half of body 

 white ; sides with a silvery longitudinal band ; irregular sub-vertical 

 bars on cheeks ; caudal fin dark brown, with a whitish inferior 

 edge. 



