BY J. DOUGLAS OGILBY. 17 
marbled. Spinous dorsal and basal half of soft similar 
to the back ; outer half of soft dorsal and of caudal lighter 
with a distinct reddish tinge ; anal violaceous gray, with 
two dark basal spots; pectorals strongly, ventrals faintly 
tinged with red. Irides dark purplish brown. (Named for 
Mr. Jonathan Thompson Jameson, an enthusiastic col- 
lector, who has brought me many interesting zoological 
specimens. )* 
Dimensions of type in millimeters.—Total length to 
end of middle caudal ray 85; to end of hypural bone 70 ; 
depth of body 28; length of head 29; of snout 8:5; dia- 
meter of eye 6; width of interorbital region 3°25 ; of maxilla 
5; height of 5th dorsal spine 11; of 2nd anal spine 12°5 ; 
length of caudal 15; of pectoral 21; of ventral 18. 
Distribution.—Moreton Bay. Type locality, Woody 
Point ; other specimens seen from Sandgate. 
This very distinct species belongs to the Guilbertia 
group of Hypoplectrodes, and is most nearly related to 
H. semicincta, from which, however, the much larger scales 
and more strongly developed anal fin at once distinguish 
it. The pattern of coloration also is widely different from 
that of the other members of the genus. 
PARAPLESIOPS POWERI. 
D2 xn 105° A. 10, «Se, 2—33—12-; » Le le 38. 
Depth of body equal to the length of the head, which is 
4 of that of the body. Snout short and rounded, 1 of the 
diameter of the eye, which is 4 of the length of the head. 
Interorbital region narrow and feebly convex, its width 
5? in the head. Jaws equal; maxillary extending to below 
the hinder border of the eye, the width of its distal extremity 
3 of the diameter of the eye. Angle of preopercle with 
several stout spines. Several series of small scales on the 
cheeks and _ postorbital region; opercular scales large. 
Gill-rakers 12 on the lower branch of the anterior arch. 
Last dorsal spine the highest, 1,% in the length of the head 
and 24 1n the 6th and highest ray : 3rd anal spine the highest, 
as high as the last dorsal spine, the 6th soft ray as high 
* Tam the more pleased at this opportunity of naming so handsome a 
species after my friend Mr. Jameson, because it was through my instru- 
mentality that the supposed species named by Macleay Atherinosoma 
jamesoni was reduced to a synonym of Pseudomugil signifer. 
B—Royat Soc, 
